diff --git a/pool/mock_test.go b/pool/mock_test.go
index 07e9ce3..592b9a1 100644
--- a/pool/mock_test.go
+++ b/pool/mock_test.go
@@ -1,5 +1,5 @@
 // Code generated by MockGen. DO NOT EDIT.
-// Source: github.com/nspcc-dev/neofs-sdk-go/Pool (interfaces: Client)
+// Source: github.com/nspcc-dev/neofs-sdk-go/Pool (interfaces: client)
 
 // Package pool is a generated GoMock package.
 package pool
@@ -12,7 +12,7 @@ import (
 	client0 "github.com/nspcc-dev/neofs-sdk-go/client"
 )
 
-// MockClient is a mock of Client interface.
+// MockClient is a mock of client interface.
 type MockClient struct {
 	ctrl     *gomock.Controller
 	recorder *MockClientMockRecorder
diff --git a/pool/pool.go b/pool/pool.go
index 456a8d7..0d3f31d 100644
--- a/pool/pool.go
+++ b/pool/pool.go
@@ -17,10 +17,11 @@ import (
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	sessionv2 "github.com/nspcc-dev/neofs-api-go/v2/session"
 	"github.com/nspcc-dev/neofs-sdk-go/accounting"
-	"github.com/nspcc-dev/neofs-sdk-go/client"
+	sdkClient "github.com/nspcc-dev/neofs-sdk-go/client"
 	"github.com/nspcc-dev/neofs-sdk-go/container"
 	cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
 	"github.com/nspcc-dev/neofs-sdk-go/eacl"
+	"github.com/nspcc-dev/neofs-sdk-go/netmap"
 	"github.com/nspcc-dev/neofs-sdk-go/object"
 	"github.com/nspcc-dev/neofs-sdk-go/object/address"
 	oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
@@ -30,27 +31,27 @@ import (
 	"go.uber.org/zap"
 )
 
-// Client is a wrapper for client.Client to generate mock.
-type Client interface {
-	BalanceGet(context.Context, client.PrmBalanceGet) (*client.ResBalanceGet, error)
-	ContainerPut(context.Context, client.PrmContainerPut) (*client.ResContainerPut, error)
-	ContainerGet(context.Context, client.PrmContainerGet) (*client.ResContainerGet, error)
-	ContainerList(context.Context, client.PrmContainerList) (*client.ResContainerList, error)
-	ContainerDelete(context.Context, client.PrmContainerDelete) (*client.ResContainerDelete, error)
-	ContainerEACL(context.Context, client.PrmContainerEACL) (*client.ResContainerEACL, error)
-	ContainerSetEACL(context.Context, client.PrmContainerSetEACL) (*client.ResContainerSetEACL, error)
-	EndpointInfo(context.Context, client.PrmEndpointInfo) (*client.ResEndpointInfo, error)
-	NetworkInfo(context.Context, client.PrmNetworkInfo) (*client.ResNetworkInfo, error)
-	ObjectPutInit(context.Context, client.PrmObjectPutInit) (*client.ObjectWriter, error)
-	ObjectDelete(context.Context, client.PrmObjectDelete) (*client.ResObjectDelete, error)
-	ObjectGetInit(context.Context, client.PrmObjectGet) (*client.ObjectReader, error)
-	ObjectHead(context.Context, client.PrmObjectHead) (*client.ResObjectHead, error)
-	ObjectRangeInit(context.Context, client.PrmObjectRange) (*client.ObjectRangeReader, error)
-	ObjectSearchInit(context.Context, client.PrmObjectSearch) (*client.ObjectListReader, error)
-	SessionCreate(context.Context, client.PrmSessionCreate) (*client.ResSessionCreate, error)
+// client is a wrapper for sdkClient.Client to generate mock.
+type client interface {
+	BalanceGet(context.Context, sdkClient.PrmBalanceGet) (*sdkClient.ResBalanceGet, error)
+	ContainerPut(context.Context, sdkClient.PrmContainerPut) (*sdkClient.ResContainerPut, error)
+	ContainerGet(context.Context, sdkClient.PrmContainerGet) (*sdkClient.ResContainerGet, error)
+	ContainerList(context.Context, sdkClient.PrmContainerList) (*sdkClient.ResContainerList, error)
+	ContainerDelete(context.Context, sdkClient.PrmContainerDelete) (*sdkClient.ResContainerDelete, error)
+	ContainerEACL(context.Context, sdkClient.PrmContainerEACL) (*sdkClient.ResContainerEACL, error)
+	ContainerSetEACL(context.Context, sdkClient.PrmContainerSetEACL) (*sdkClient.ResContainerSetEACL, error)
+	EndpointInfo(context.Context, sdkClient.PrmEndpointInfo) (*sdkClient.ResEndpointInfo, error)
+	NetworkInfo(context.Context, sdkClient.PrmNetworkInfo) (*sdkClient.ResNetworkInfo, error)
+	ObjectPutInit(context.Context, sdkClient.PrmObjectPutInit) (*sdkClient.ObjectWriter, error)
+	ObjectDelete(context.Context, sdkClient.PrmObjectDelete) (*sdkClient.ResObjectDelete, error)
+	ObjectGetInit(context.Context, sdkClient.PrmObjectGet) (*sdkClient.ObjectReader, error)
+	ObjectHead(context.Context, sdkClient.PrmObjectHead) (*sdkClient.ResObjectHead, error)
+	ObjectRangeInit(context.Context, sdkClient.PrmObjectRange) (*sdkClient.ObjectRangeReader, error)
+	ObjectSearchInit(context.Context, sdkClient.PrmObjectSearch) (*sdkClient.ObjectListReader, error)
+	SessionCreate(context.Context, sdkClient.PrmSessionCreate) (*sdkClient.ResSessionCreate, error)
 }
 
-// InitParameters contains options used to create connection Pool.
+// InitParameters contains values used to initialize connection Pool.
 type InitParameters struct {
 	Key                       *ecdsa.PrivateKey
 	Logger                    *zap.Logger
@@ -61,7 +62,7 @@ type InitParameters struct {
 	SessionExpirationDuration uint64
 	NodeParams                []NodeParam
 
-	clientBuilder func(endpoint string) (Client, error)
+	clientBuilder func(endpoint string) (client, error)
 }
 
 type rebalanceParameters struct {
@@ -99,7 +100,7 @@ func DefaultPollingParams() *ContainerPollingParams {
 }
 
 type clientPack struct {
-	client  Client
+	client  client
 	healthy bool
 	address string
 }
@@ -325,7 +326,7 @@ func (x *PrmBalanceGet) SetOwnerID(ownerID *owner.ID) {
 // Pool represents virtual connection to the NeoFS network to communicate
 // with multiple NeoFS servers without thinking about switching between servers
 // due to load balancing proportions or their unavailability.
-// It is designed to provide a convenient abstraction from the multiple client.Client types.
+// It is designed to provide a convenient abstraction from the multiple sdkClient.client types.
 //
 // Pool can be created and initialized using NewPool function.
 // Before executing the NeoFS operations using the Pool, connection to the
@@ -338,9 +339,9 @@ func (x *PrmBalanceGet) SetOwnerID(ownerID *owner.ID) {
 //
 // Each method which produces a NeoFS API call may return an error.
 // Status of underlying server response is casted to built-in error instance.
-// Certain statuses can be checked using `client` and standard `errors` packages.
+// Certain statuses can be checked using `sdkClient` and standard `errors` packages.
 // Note that package provides some helper functions to work with status returns
-// (e.g. client.IsErrContainerNotFound, client.IsErrObjectNotFound).
+// (e.g. sdkClient.IsErrContainerNotFound, sdkClient.IsErrObjectNotFound).
 //
 // See pool package overview to get some examples.
 type Pool struct {
@@ -353,7 +354,7 @@ type Pool struct {
 	stokenDuration  uint64
 	stokenThreshold time.Duration
 	rebalanceParams rebalanceParameters
-	clientBuilder   func(endpoint string) (Client, error)
+	clientBuilder   func(endpoint string) (client, error)
 	logger          *zap.Logger
 }
 
@@ -475,16 +476,16 @@ func fillDefaultInitParams(params *InitParameters) {
 	}
 
 	if params.clientBuilder == nil {
-		params.clientBuilder = func(addr string) (Client, error) {
-			var c client.Client
+		params.clientBuilder = func(addr string) (client, error) {
+			var c sdkClient.Client
 
-			var prmInit client.PrmInit
+			var prmInit sdkClient.PrmInit
 			prmInit.ResolveNeoFSFailures()
 			prmInit.SetDefaultPrivateKey(*params.Key)
 
 			c.Init(prmInit)
 
-			var prmDial client.PrmDial
+			var prmDial sdkClient.PrmDial
 			prmDial.SetServerURI(addr)
 			prmDial.SetTimeout(params.NodeConnectionTimeout)
 
@@ -565,11 +566,11 @@ func (p *Pool) updateInnerNodesHealth(ctx context.Context, i int, bufferWeights
 	healthyChanged := false
 	wg := sync.WaitGroup{}
 
-	var prmEndpoint client.PrmEndpointInfo
+	var prmEndpoint sdkClient.PrmEndpointInfo
 
 	for j, cPack := range pool.clientPacks {
 		wg.Add(1)
-		go func(j int, cli Client) {
+		go func(j int, cli client) {
 			defer wg.Done()
 			ok := true
 			tctx, c := context.WithTimeout(ctx, options.nodeRequestTimeout)
@@ -634,16 +635,6 @@ func adjustWeights(weights []float64) []float64 {
 	return adjusted
 }
 
-func (p *Pool) Connection() (Client, *session.Token, error) {
-	cp, err := p.connection()
-	if err != nil {
-		return nil, nil, err
-	}
-
-	tok := p.cache.Get(formCacheKey(cp.address, p.key))
-	return cp.client, tok, nil
-}
-
 func (p *Pool) connection() (*clientPack, error) {
 	for _, inner := range p.innerPools {
 		cp, err := inner.connection()
@@ -732,15 +723,15 @@ func (p *Pool) checkSessionTokenErr(err error, address string) bool {
 	return false
 }
 
-func createSessionTokenForDuration(ctx context.Context, c Client, dur uint64) (*client.ResSessionCreate, error) {
-	ni, err := c.NetworkInfo(ctx, client.PrmNetworkInfo{})
+func createSessionTokenForDuration(ctx context.Context, c client, dur uint64) (*sdkClient.ResSessionCreate, error) {
+	ni, err := c.NetworkInfo(ctx, sdkClient.PrmNetworkInfo{})
 	if err != nil {
 		return nil, err
 	}
 
 	epoch := ni.Info().CurrentEpoch()
 
-	var prm client.PrmSessionCreate
+	var prm sdkClient.PrmSessionCreate
 	if math.MaxUint64-epoch < dur {
 		prm.SetExp(math.MaxUint64)
 	} else {
@@ -773,7 +764,7 @@ type callContext struct {
 	// base context for RPC
 	context.Context
 
-	client Client
+	client client
 
 	// client endpoint
 	endpoint string
@@ -921,7 +912,7 @@ func (p *Pool) PutObject(ctx context.Context, prm PrmObjectPut) (*oid.ID, error)
 		return nil, fmt.Errorf("init call context")
 	}
 
-	var cliPrm client.PrmObjectPutInit
+	var cliPrm sdkClient.PrmObjectPutInit
 
 	wObj, err := ctxCall.client.ObjectPutInit(ctx, cliPrm)
 	if err != nil {
@@ -1009,7 +1000,7 @@ func (p *Pool) DeleteObject(ctx context.Context, prm PrmObjectDelete) error {
 	prm.useVerb(sessionv2.ObjectVerbDelete)
 	prm.useAddress(&prm.addr)
 
-	var cliPrm client.PrmObjectDelete
+	var cliPrm sdkClient.PrmObjectDelete
 
 	var cc callContextWithRetry
 
@@ -1041,16 +1032,16 @@ func (p *Pool) DeleteObject(ctx context.Context, prm PrmObjectDelete) error {
 	})
 }
 
-type objectReadCloser client.ObjectReader
+type objectReadCloser sdkClient.ObjectReader
 
 // Read implements io.Reader of the object payload.
 func (x *objectReadCloser) Read(p []byte) (int, error) {
-	return (*client.ObjectReader)(x).Read(p)
+	return (*sdkClient.ObjectReader)(x).Read(p)
 }
 
 // Close implements io.Closer of the object payload.
 func (x *objectReadCloser) Close() error {
-	_, err := (*client.ObjectReader)(x).Close()
+	_, err := (*sdkClient.ObjectReader)(x).Close()
 	return err
 }
 
@@ -1067,7 +1058,7 @@ func (p *Pool) GetObject(ctx context.Context, prm PrmObjectGet) (*ResGetObject,
 	prm.useVerb(sessionv2.ObjectVerbGet)
 	prm.useAddress(&prm.addr)
 
-	var cliPrm client.PrmObjectGet
+	var cliPrm sdkClient.PrmObjectGet
 
 	var cc callContextWithRetry
 
@@ -1119,7 +1110,7 @@ func (p *Pool) HeadObject(ctx context.Context, prm PrmObjectHead) (*object.Objec
 	prm.useVerb(sessionv2.ObjectVerbHead)
 	prm.useAddress(&prm.addr)
 
-	var cliPrm client.PrmObjectHead
+	var cliPrm sdkClient.PrmObjectHead
 
 	var cc callContextWithRetry
 
@@ -1168,7 +1159,7 @@ func (p *Pool) HeadObject(ctx context.Context, prm PrmObjectHead) (*object.Objec
 // Must be initialized using Pool.ObjectRange, any other
 // usage is unsafe.
 type ResObjectRange struct {
-	payload *client.ObjectRangeReader
+	payload *sdkClient.ObjectRangeReader
 }
 
 // Read implements io.Reader of the object payload.
@@ -1190,7 +1181,7 @@ func (p *Pool) ObjectRange(ctx context.Context, prm PrmObjectRange) (*ResObjectR
 	prm.useVerb(sessionv2.ObjectVerbRange)
 	prm.useAddress(&prm.addr)
 
-	var cliPrm client.PrmObjectRange
+	var cliPrm sdkClient.PrmObjectRange
 
 	cliPrm.SetOffset(prm.off)
 	cliPrm.SetLength(prm.ln)
@@ -1238,7 +1229,7 @@ func (p *Pool) ObjectRange(ctx context.Context, prm PrmObjectRange) (*ResObjectR
 //
 // Must be initialized using Pool.SearchObjects, any other usage is unsafe.
 type ResObjectSearch struct {
-	r *client.ObjectListReader
+	r *sdkClient.ObjectListReader
 }
 
 // Read reads another list of the object identifiers.
@@ -1280,7 +1271,7 @@ func (p *Pool) SearchObjects(ctx context.Context, prm PrmObjectSearch) (*ResObje
 	prm.useVerb(sessionv2.ObjectVerbSearch)
 	prm.useAddress(newAddressFromCnrID(&prm.cnrID))
 
-	var cliPrm client.PrmObjectSearch
+	var cliPrm sdkClient.PrmObjectSearch
 
 	cliPrm.InContainer(prm.cnrID)
 	cliPrm.SetFilters(prm.filters)
@@ -1328,7 +1319,7 @@ func (p *Pool) PutContainer(ctx context.Context, prm PrmContainerPut) (*cid.ID,
 		return nil, err
 	}
 
-	var cliPrm client.PrmContainerPut
+	var cliPrm sdkClient.PrmContainerPut
 
 	if prm.cnr != nil {
 		cliPrm.SetContainer(*prm.cnr)
@@ -1349,7 +1340,7 @@ func (p *Pool) GetContainer(ctx context.Context, prm PrmContainerGet) (*containe
 		return nil, err
 	}
 
-	var cliPrm client.PrmContainerGet
+	var cliPrm sdkClient.PrmContainerGet
 
 	if prm.cnrID != nil {
 		cliPrm.SetContainer(*prm.cnrID)
@@ -1370,7 +1361,7 @@ func (p *Pool) ListContainers(ctx context.Context, prm PrmContainerList) ([]cid.
 		return nil, err
 	}
 
-	var cliPrm client.PrmContainerList
+	var cliPrm sdkClient.PrmContainerList
 
 	if prm.ownerID != nil {
 		cliPrm.SetAccount(*prm.ownerID)
@@ -1396,7 +1387,7 @@ func (p *Pool) DeleteContainer(ctx context.Context, prm PrmContainerDelete) erro
 		return err
 	}
 
-	var cliPrm client.PrmContainerDelete
+	var cliPrm sdkClient.PrmContainerDelete
 
 	if prm.cnrID != nil {
 		cliPrm.SetContainer(*prm.cnrID)
@@ -1420,7 +1411,7 @@ func (p *Pool) GetEACL(ctx context.Context, prm PrmContainerEACL) (*eacl.Table,
 		return nil, err
 	}
 
-	var cliPrm client.PrmContainerEACL
+	var cliPrm sdkClient.PrmContainerEACL
 
 	if prm.cnrID != nil {
 		cliPrm.SetContainer(*prm.cnrID)
@@ -1446,7 +1437,7 @@ func (p *Pool) SetEACL(ctx context.Context, prm PrmContainerSetEACL) error {
 		return err
 	}
 
-	var cliPrm client.PrmContainerSetEACL
+	var cliPrm sdkClient.PrmContainerSetEACL
 
 	if prm.table != nil {
 		cliPrm.SetTable(*prm.table)
@@ -1466,7 +1457,7 @@ func (p *Pool) Balance(ctx context.Context, prm PrmBalanceGet) (*accounting.Deci
 		return nil, err
 	}
 
-	var cliPrm client.PrmBalanceGet
+	var cliPrm sdkClient.PrmBalanceGet
 
 	if prm.ownerID != nil {
 		cliPrm.SetAccount(*prm.ownerID)
@@ -1482,7 +1473,7 @@ func (p *Pool) Balance(ctx context.Context, prm PrmBalanceGet) (*accounting.Deci
 
 // WaitForContainerPresence waits until the container is found on the NeoFS network.
 func (p *Pool) WaitForContainerPresence(ctx context.Context, cid *cid.ID, pollParams *ContainerPollingParams) error {
-	conn, _, err := p.Connection()
+	cp, err := p.connection()
 	if err != nil {
 		return err
 	}
@@ -1493,7 +1484,7 @@ func (p *Pool) WaitForContainerPresence(ctx context.Context, cid *cid.ID, pollPa
 	wdone := wctx.Done()
 	done := ctx.Done()
 
-	var cliPrm client.PrmContainerGet
+	var cliPrm sdkClient.PrmContainerGet
 
 	if cid != nil {
 		cliPrm.SetContainer(*cid)
@@ -1506,7 +1497,7 @@ func (p *Pool) WaitForContainerPresence(ctx context.Context, cid *cid.ID, pollPa
 		case <-wdone:
 			return wctx.Err()
 		case <-ticker.C:
-			_, err = conn.ContainerGet(ctx, cliPrm)
+			_, err = cp.client.ContainerGet(ctx, cliPrm)
 			if err == nil {
 				return nil
 			}
@@ -1515,6 +1506,20 @@ func (p *Pool) WaitForContainerPresence(ctx context.Context, cid *cid.ID, pollPa
 	}
 }
 
+func (p *Pool) NetworkInfo(ctx context.Context) (*netmap.NetworkInfo, error) {
+	cp, err := p.connection()
+	if err != nil {
+		return nil, err
+	}
+
+	res, err := cp.client.NetworkInfo(ctx, sdkClient.PrmNetworkInfo{})
+	if err != nil { // here err already carries both status and client errors
+		return nil, err
+	}
+
+	return res.Info(), nil
+}
+
 // Close closes the Pool and releases all the associated resources.
 func (p *Pool) Close() {
 	p.cancel()
@@ -1522,12 +1527,12 @@ func (p *Pool) Close() {
 }
 
 // creates new session token from SessionCreate call result.
-func (p *Pool) newSessionToken(cliRes *client.ResSessionCreate) *session.Token {
+func (p *Pool) newSessionToken(cliRes *sdkClient.ResSessionCreate) *session.Token {
 	return sessionTokenForOwner(p.owner, cliRes)
 }
 
 // creates new session token with specified owner from SessionCreate call result.
-func sessionTokenForOwner(id *owner.ID, cliRes *client.ResSessionCreate) *session.Token {
+func sessionTokenForOwner(id *owner.ID, cliRes *sdkClient.ResSessionCreate) *session.Token {
 	st := session.NewToken()
 	st.SetOwnerID(id)
 	st.SetID(cliRes.ID())
diff --git a/pool/pool_test.go b/pool/pool_test.go
index 9f468d7..8e90ec1 100644
--- a/pool/pool_test.go
+++ b/pool/pool_test.go
@@ -13,7 +13,7 @@ import (
 	"github.com/golang/mock/gomock"
 	"github.com/google/uuid"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
-	"github.com/nspcc-dev/neofs-sdk-go/client"
+	sdkClient "github.com/nspcc-dev/neofs-sdk-go/client"
 	"github.com/nspcc-dev/neofs-sdk-go/netmap"
 	"github.com/nspcc-dev/neofs-sdk-go/object"
 	"github.com/nspcc-dev/neofs-sdk-go/object/address"
@@ -24,7 +24,7 @@ import (
 )
 
 func TestBuildPoolClientFailed(t *testing.T) {
-	clientBuilder := func(_ string) (Client, error) {
+	clientBuilder := func(_ string) (client, error) {
 		return nil, fmt.Errorf("error")
 	}
 
@@ -46,11 +46,11 @@ func TestBuildPoolCreateSessionFailed(t *testing.T) {
 	ni := &netmap.NodeInfo{}
 	ni.SetAddresses("addr1", "addr2")
 
-	clientBuilder := func(_ string) (Client, error) {
+	clientBuilder := func(_ string) (client, error) {
 		mockClient := NewMockClient(ctrl)
 		mockClient.EXPECT().CreateSession(gomock.Any(), gomock.Any()).Return(nil, fmt.Errorf("error session")).AnyTimes()
-		mockClient.EXPECT().EndpointInfo(gomock.Any(), gomock.Any()).Return(&client.ResEndpointInfo{}, nil).AnyTimes()
-		mockClient.EXPECT().NetworkInfo(gomock.Any(), gomock.Any()).Return(&client.ResNetworkInfo{}, nil).AnyTimes()
+		mockClient.EXPECT().EndpointInfo(gomock.Any(), gomock.Any()).Return(&sdkClient.ResEndpointInfo{}, nil).AnyTimes()
+		mockClient.EXPECT().NetworkInfo(gomock.Any(), gomock.Any()).Return(&sdkClient.ResNetworkInfo{}, nil).AnyTimes()
 		return mockClient, nil
 	}
 
@@ -83,7 +83,7 @@ func TestBuildPoolOneNodeFailed(t *testing.T) {
 
 	var expectedToken *session.Token
 	clientCount := -1
-	clientBuilder := func(_ string) (Client, error) {
+	clientBuilder := func(_ string) (client, error) {
 		clientCount++
 		mockClient := NewMockClient(ctrl)
 		mockInvokes := 0
@@ -97,12 +97,12 @@ func TestBuildPoolOneNodeFailed(t *testing.T) {
 		}).AnyTimes()
 
 		mockClient.EXPECT().EndpointInfo(gomock.Any(), gomock.Any()).Return(nil, nil).AnyTimes()
-		mockClient.EXPECT().NetworkInfo(gomock.Any(), gomock.Any()).Return(&client.ResNetworkInfo{}, nil).AnyTimes()
+		mockClient.EXPECT().NetworkInfo(gomock.Any(), gomock.Any()).Return(&sdkClient.ResNetworkInfo{}, nil).AnyTimes()
 
 		mockClient2 := NewMockClient(ctrl2)
 		mockClient2.EXPECT().CreateSession(gomock.Any(), gomock.Any()).Return(nil, nil).AnyTimes()
 		mockClient2.EXPECT().EndpointInfo(gomock.Any(), gomock.Any()).Return(nil, nil).AnyTimes()
-		mockClient.EXPECT().NetworkInfo(gomock.Any(), gomock.Any()).Return(&client.ResNetworkInfo{}, nil).AnyTimes()
+		mockClient.EXPECT().NetworkInfo(gomock.Any(), gomock.Any()).Return(&sdkClient.ResNetworkInfo{}, nil).AnyTimes()
 
 		if clientCount == 0 {
 			return mockClient, nil
@@ -130,8 +130,12 @@ func TestBuildPoolOneNodeFailed(t *testing.T) {
 	t.Cleanup(clientPool.Close)
 
 	condition := func() bool {
-		_, st, err := clientPool.Connection()
-		return err == nil && st == expectedToken
+		cp, err := clientPool.connection()
+		if err != nil {
+			return false
+		}
+		st := clientPool.cache.Get(formCacheKey(cp.address, clientPool.key))
+		return st == expectedToken
 	}
 	require.Never(t, condition, 900*time.Millisecond, 100*time.Millisecond)
 	require.Eventually(t, condition, 3*time.Second, 300*time.Millisecond)
@@ -155,11 +159,11 @@ func TestOneNode(t *testing.T) {
 	require.NoError(t, err)
 	tok.SetID(uid)
 
-	clientBuilder := func(_ string) (Client, error) {
+	clientBuilder := func(_ string) (client, error) {
 		mockClient := NewMockClient(ctrl)
 		mockClient.EXPECT().CreateSession(gomock.Any(), gomock.Any()).Return(tok, nil)
-		mockClient.EXPECT().EndpointInfo(gomock.Any(), gomock.Any()).Return(&client.ResEndpointInfo{}, nil).AnyTimes()
-		mockClient.EXPECT().NetworkInfo(gomock.Any(), gomock.Any()).Return(&client.ResNetworkInfo{}, nil).AnyTimes()
+		mockClient.EXPECT().EndpointInfo(gomock.Any(), gomock.Any()).Return(&sdkClient.ResEndpointInfo{}, nil).AnyTimes()
+		mockClient.EXPECT().NetworkInfo(gomock.Any(), gomock.Any()).Return(&sdkClient.ResNetworkInfo{}, nil).AnyTimes()
 		return mockClient, nil
 	}
 
@@ -175,8 +179,9 @@ func TestOneNode(t *testing.T) {
 	require.NoError(t, err)
 	t.Cleanup(pool.Close)
 
-	_, st, err := pool.Connection()
+	cp, err := pool.connection()
 	require.NoError(t, err)
+	st := pool.cache.Get(formCacheKey(cp.address, pool.key))
 	require.Equal(t, tok, st)
 }
 
@@ -186,7 +191,7 @@ func TestTwoNodes(t *testing.T) {
 	ctrl := gomock.NewController(t)
 
 	var tokens []*session.Token
-	clientBuilder := func(_ string) (Client, error) {
+	clientBuilder := func(_ string) (client, error) {
 		mockClient := NewMockClient(ctrl)
 		mockClient.EXPECT().CreateSession(gomock.Any(), gomock.Any()).DoAndReturn(func(_, _ interface{}, _ ...interface{}) (*session.Token, error) {
 			tok := session.NewToken()
@@ -196,8 +201,8 @@ func TestTwoNodes(t *testing.T) {
 			tokens = append(tokens, tok)
 			return tok, err
 		})
-		mockClient.EXPECT().EndpointInfo(gomock.Any(), gomock.Any()).Return(&client.ResEndpointInfo{}, nil).AnyTimes()
-		mockClient.EXPECT().NetworkInfo(gomock.Any(), gomock.Any()).Return(&client.ResNetworkInfo{}, nil).AnyTimes()
+		mockClient.EXPECT().EndpointInfo(gomock.Any(), gomock.Any()).Return(&sdkClient.ResEndpointInfo{}, nil).AnyTimes()
+		mockClient.EXPECT().NetworkInfo(gomock.Any(), gomock.Any()).Return(&sdkClient.ResNetworkInfo{}, nil).AnyTimes()
 		return mockClient, nil
 	}
 
@@ -216,8 +221,9 @@ func TestTwoNodes(t *testing.T) {
 	require.NoError(t, err)
 	t.Cleanup(pool.Close)
 
-	_, st, err := pool.Connection()
+	cp, err := pool.connection()
 	require.NoError(t, err)
+	st := pool.cache.Get(formCacheKey(cp.address, pool.key))
 	require.Contains(t, tokens, st)
 }
 
@@ -229,7 +235,7 @@ func TestOneOfTwoFailed(t *testing.T) {
 
 	var tokens []*session.Token
 	clientCount := -1
-	clientBuilder := func(_ string) (Client, error) {
+	clientBuilder := func(_ string) (client, error) {
 		clientCount++
 		mockClient := NewMockClient(ctrl)
 		mockClient.EXPECT().CreateSession(gomock.Any(), gomock.Any()).DoAndReturn(func(_, _ interface{}, _ ...interface{}) (*session.Token, error) {
@@ -238,7 +244,7 @@ func TestOneOfTwoFailed(t *testing.T) {
 			return tok, nil
 		}).AnyTimes()
 		mockClient.EXPECT().EndpointInfo(gomock.Any(), gomock.Any()).Return(nil, nil).AnyTimes()
-		mockClient.EXPECT().NetworkInfo(gomock.Any(), gomock.Any()).Return(&client.ResNetworkInfo{}, nil).AnyTimes()
+		mockClient.EXPECT().NetworkInfo(gomock.Any(), gomock.Any()).Return(&sdkClient.ResNetworkInfo{}, nil).AnyTimes()
 
 		mockClient2 := NewMockClient(ctrl2)
 		mockClient2.EXPECT().CreateSession(gomock.Any(), gomock.Any()).DoAndReturn(func(_, _ interface{}, _ ...interface{}) (*session.Token, error) {
@@ -246,10 +252,10 @@ func TestOneOfTwoFailed(t *testing.T) {
 			tokens = append(tokens, tok)
 			return tok, nil
 		}).AnyTimes()
-		mockClient2.EXPECT().EndpointInfo(gomock.Any(), gomock.Any()).DoAndReturn(func(_ interface{}, _ ...interface{}) (*client.ResEndpointInfo, error) {
+		mockClient2.EXPECT().EndpointInfo(gomock.Any(), gomock.Any()).DoAndReturn(func(_ interface{}, _ ...interface{}) (*sdkClient.ResEndpointInfo, error) {
 			return nil, fmt.Errorf("error")
 		}).AnyTimes()
-		mockClient2.EXPECT().NetworkInfo(gomock.Any(), gomock.Any()).DoAndReturn(func(_ interface{}, _ ...interface{}) (*client.ResNetworkInfo, error) {
+		mockClient2.EXPECT().NetworkInfo(gomock.Any(), gomock.Any()).DoAndReturn(func(_ interface{}, _ ...interface{}) (*sdkClient.ResNetworkInfo, error) {
 			return nil, fmt.Errorf("error")
 		}).AnyTimes()
 
@@ -280,8 +286,9 @@ func TestOneOfTwoFailed(t *testing.T) {
 	time.Sleep(2 * time.Second)
 
 	for i := 0; i < 5; i++ {
-		_, st, err := pool.Connection()
+		cp, err := pool.connection()
 		require.NoError(t, err)
+		st := pool.cache.Get(formCacheKey(cp.address, pool.key))
 		require.Equal(t, tokens[0], st)
 	}
 }
@@ -291,7 +298,7 @@ func TestTwoFailed(t *testing.T) {
 
 	ctrl := gomock.NewController(t)
 
-	clientBuilder := func(_ string) (Client, error) {
+	clientBuilder := func(_ string) (client, error) {
 		mockClient := NewMockClient(ctrl)
 		mockClient.EXPECT().CreateSession(gomock.Any(), gomock.Any()).Return(nil, nil).AnyTimes()
 		mockClient.EXPECT().EndpointInfo(gomock.Any(), gomock.Any()).Return(nil, fmt.Errorf("error")).AnyTimes()
@@ -318,7 +325,7 @@ func TestTwoFailed(t *testing.T) {
 
 	time.Sleep(2 * time.Second)
 
-	_, _, err = pool.Connection()
+	_, err = pool.connection()
 	require.Error(t, err)
 	require.Contains(t, err.Error(), "no healthy")
 }
@@ -329,7 +336,7 @@ func TestSessionCache(t *testing.T) {
 	ctrl := gomock.NewController(t)
 
 	var tokens []*session.Token
-	clientBuilder := func(_ string) (Client, error) {
+	clientBuilder := func(_ string) (client, error) {
 		mockClient := NewMockClient(ctrl)
 		mockClient.EXPECT().CreateSession(gomock.Any(), gomock.Any()).DoAndReturn(func(_, _ interface{}, _ ...interface{}) (*session.Token, error) {
 			tok := session.NewToken()
@@ -365,8 +372,9 @@ func TestSessionCache(t *testing.T) {
 	t.Cleanup(pool.Close)
 
 	// cache must contain session token
-	_, st, err := pool.Connection()
+	cp, err := pool.connection()
 	require.NoError(t, err)
+	st := pool.cache.Get(formCacheKey(cp.address, pool.key))
 	require.Contains(t, tokens, st)
 
 	var prm PrmObjectGet
@@ -376,8 +384,9 @@ func TestSessionCache(t *testing.T) {
 	require.Error(t, err)
 
 	// cache must not contain session token
-	_, st, err = pool.Connection()
+	cp, err = pool.connection()
 	require.NoError(t, err)
+	st = pool.cache.Get(formCacheKey(cp.address, pool.key))
 	require.Nil(t, st)
 
 	var prm2 PrmObjectPut
@@ -387,8 +396,9 @@ func TestSessionCache(t *testing.T) {
 	require.NoError(t, err)
 
 	// cache must contain session token
-	_, st, err = pool.Connection()
+	cp, err = pool.connection()
 	require.NoError(t, err)
+	st = pool.cache.Get(formCacheKey(cp.address, pool.key))
 	require.Contains(t, tokens, st)
 }
 
@@ -400,7 +410,7 @@ func TestPriority(t *testing.T) {
 
 	var tokens []*session.Token
 	clientCount := -1
-	clientBuilder := func(_ string) (Client, error) {
+	clientBuilder := func(_ string) (client, error) {
 		clientCount++
 		mockClient := NewMockClient(ctrl)
 		mockClient.EXPECT().CreateSession(gomock.Any(), gomock.Any()).DoAndReturn(func(_, _ interface{}, _ ...interface{}) (*session.Token, error) {
@@ -446,13 +456,15 @@ func TestPriority(t *testing.T) {
 	t.Cleanup(pool.Close)
 
 	firstNode := func() bool {
-		_, st, err := pool.Connection()
+		cp, err := pool.connection()
 		require.NoError(t, err)
+		st := pool.cache.Get(formCacheKey(cp.address, pool.key))
 		return st == tokens[0]
 	}
 	secondNode := func() bool {
-		_, st, err := pool.Connection()
+		cp, err := pool.connection()
 		require.NoError(t, err)
+		st := pool.cache.Get(formCacheKey(cp.address, pool.key))
 		return st == tokens[1]
 	}
 	require.Never(t, secondNode, time.Second, 200*time.Millisecond)
@@ -467,7 +479,7 @@ func TestSessionCacheWithKey(t *testing.T) {
 	ctrl := gomock.NewController(t)
 
 	var tokens []*session.Token
-	clientBuilder := func(_ string) (Client, error) {
+	clientBuilder := func(_ string) (client, error) {
 		mockClient := NewMockClient(ctrl)
 		mockClient.EXPECT().CreateSession(gomock.Any(), gomock.Any()).DoAndReturn(func(_, _ interface{}, _ ...interface{}) (*session.Token, error) {
 			tok := session.NewToken()
@@ -501,8 +513,9 @@ func TestSessionCacheWithKey(t *testing.T) {
 	require.NoError(t, err)
 
 	// cache must contain session token
-	_, st, err := pool.Connection()
+	cp, err := pool.connection()
 	require.NoError(t, err)
+	st := pool.cache.Get(formCacheKey(cp.address, pool.key))
 	require.Contains(t, tokens, st)
 
 	var prm PrmObjectGet
@@ -525,11 +538,11 @@ func newToken(t *testing.T) *session.Token {
 
 func TestSessionTokenOwner(t *testing.T) {
 	ctrl := gomock.NewController(t)
-	clientBuilder := func(_ string) (Client, error) {
+	clientBuilder := func(_ string) (client, error) {
 		mockClient := NewMockClient(ctrl)
-		mockClient.EXPECT().CreateSession(gomock.Any(), gomock.Any()).Return(&client.ResSessionCreate{}, nil).AnyTimes()
-		mockClient.EXPECT().EndpointInfo(gomock.Any(), gomock.Any()).Return(&client.ResEndpointInfo{}, nil).AnyTimes()
-		mockClient.EXPECT().NetworkInfo(gomock.Any(), gomock.Any()).Return(&client.ResNetworkInfo{}, nil).AnyTimes()
+		mockClient.EXPECT().CreateSession(gomock.Any(), gomock.Any()).Return(&sdkClient.ResSessionCreate{}, nil).AnyTimes()
+		mockClient.EXPECT().EndpointInfo(gomock.Any(), gomock.Any()).Return(&sdkClient.ResEndpointInfo{}, nil).AnyTimes()
+		mockClient.EXPECT().NetworkInfo(gomock.Any(), gomock.Any()).Return(&sdkClient.ResNetworkInfo{}, nil).AnyTimes()
 		return mockClient, nil
 	}
 
@@ -569,7 +582,7 @@ func TestWaitPresence(t *testing.T) {
 	mockClient := NewMockClient(ctrl)
 	mockClient.EXPECT().CreateSession(gomock.Any(), gomock.Any()).Return(nil, nil).AnyTimes()
 	mockClient.EXPECT().EndpointInfo(gomock.Any(), gomock.Any()).Return(nil, nil).AnyTimes()
-	mockClient.EXPECT().NetworkInfo(gomock.Any(), gomock.Any()).Return(&client.ResNetworkInfo{}, nil).AnyTimes()
+	mockClient.EXPECT().NetworkInfo(gomock.Any(), gomock.Any()).Return(&sdkClient.ResNetworkInfo{}, nil).AnyTimes()
 	mockClient.EXPECT().GetContainer(gomock.Any(), gomock.Any()).Return(nil, nil).AnyTimes()
 
 	cache, err := newCache()
diff --git a/pool/sampler_test.go b/pool/sampler_test.go
index 77a26d2..f41dbdb 100644
--- a/pool/sampler_test.go
+++ b/pool/sampler_test.go
@@ -6,7 +6,7 @@ import (
 	"math/rand"
 	"testing"
 
-	"github.com/nspcc-dev/neofs-sdk-go/client"
+	sdkClient "github.com/nspcc-dev/neofs-sdk-go/client"
 	"github.com/stretchr/testify/require"
 )
 
@@ -43,16 +43,16 @@ func TestSamplerStability(t *testing.T) {
 }
 
 type clientMock struct {
-	client.Client
+	sdkClient.Client
 	name string
 	err  error
 }
 
-func (c *clientMock) EndpointInfo(context.Context, client.PrmEndpointInfo) (*client.ResEndpointInfo, error) {
+func (c *clientMock) EndpointInfo(context.Context, sdkClient.PrmEndpointInfo) (*sdkClient.ResEndpointInfo, error) {
 	return nil, nil
 }
 
-func (c *clientMock) NetworkInfo(context.Context, client.PrmNetworkInfo) (*client.ResNetworkInfo, error) {
+func (c *clientMock) NetworkInfo(context.Context, sdkClient.PrmNetworkInfo) (*sdkClient.ResNetworkInfo, error) {
 	return nil, nil
 }
 
@@ -88,16 +88,16 @@ func TestHealthyReweight(t *testing.T) {
 	}
 
 	// check getting first node connection before rebalance happened
-	connection0, _, err := p.Connection()
+	connection0, err := p.connection()
 	require.NoError(t, err)
-	mock0 := connection0.(*clientMock)
+	mock0 := connection0.client.(*clientMock)
 	require.Equal(t, names[0], mock0.name)
 
 	p.updateInnerNodesHealth(context.TODO(), 0, buffer)
 
-	connection1, _, err := p.Connection()
+	connection1, err := p.connection()
 	require.NoError(t, err)
-	mock1 := connection1.(*clientMock)
+	mock1 := connection1.client.(*clientMock)
 	require.Equal(t, names[1], mock1.name)
 
 	// enabled first node again
@@ -108,9 +108,9 @@ func TestHealthyReweight(t *testing.T) {
 	p.updateInnerNodesHealth(context.TODO(), 0, buffer)
 	inner.sampler = newSampler(weights, rand.NewSource(0))
 
-	connection0, _, err = p.Connection()
+	connection0, err = p.connection()
 	require.NoError(t, err)
-	mock0 = connection0.(*clientMock)
+	mock0 = connection0.client.(*clientMock)
 	require.Equal(t, names[0], mock0.name)
 }