diff --git a/cmd/neofs-node/container.go b/cmd/neofs-node/container.go
index c44da3dcd..daa98bc06 100644
--- a/cmd/neofs-node/container.go
+++ b/cmd/neofs-node/container.go
@@ -205,7 +205,7 @@ type remoteLoadAnnounceProvider struct {
 	loadAddrSrc network.LocalAddressSource
 
 	clientCache interface {
-		Get(network.Address) (apiClient.Client, error)
+		Get(network.AddressGroup) (apiClient.Client, error)
 	}
 
 	deadEndProvider loadcontroller.WriterProvider
@@ -230,7 +230,7 @@ func (r *remoteLoadAnnounceProvider) InitRemote(srv loadroute.ServerInfo) (loadc
 		return loadcontroller.SimpleWriterProvider(new(nopLoadWriter)), nil
 	}
 
-	c, err := r.clientCache.Get(netAddr)
+	c, err := r.clientCache.Get(network.GroupFromAddress(netAddr))
 	if err != nil {
 		return nil, fmt.Errorf("could not initialize API client: %w", err)
 	}
diff --git a/cmd/neofs-node/object.go b/cmd/neofs-node/object.go
index b7afcfb8b..8a01e6d5c 100644
--- a/cmd/neofs-node/object.go
+++ b/cmd/neofs-node/object.go
@@ -422,7 +422,7 @@ type reputationClientConstructor struct {
 	trustStorage *truststorage.Storage
 
 	basicConstructor interface {
-		Get(network.Address) (client.Client, error)
+		Get(network.AddressGroup) (client.Client, error)
 	}
 }
 
@@ -507,7 +507,7 @@ func (c *reputationClient) SearchObject(ctx context.Context, prm *client.SearchO
 }
 
 func (c *reputationClientConstructor) Get(addr network.Address) (client.Client, error) {
-	cl, err := c.basicConstructor.Get(addr)
+	cl, err := c.basicConstructor.Get(network.GroupFromAddress(addr))
 	if err != nil {
 		return nil, err
 	}
diff --git a/cmd/neofs-node/reputation/common/remote.go b/cmd/neofs-node/reputation/common/remote.go
index 5c4c88d51..cd08ae062 100644
--- a/cmd/neofs-node/reputation/common/remote.go
+++ b/cmd/neofs-node/reputation/common/remote.go
@@ -11,7 +11,7 @@ import (
 )
 
 type clientCache interface {
-	Get(network.Address) (apiClient.Client, error)
+	Get(network.AddressGroup) (apiClient.Client, error)
 }
 
 // clientKeyRemoteProvider must provide remote writer and take into account
@@ -84,7 +84,7 @@ func (rtp *remoteTrustProvider) InitRemote(srv reputationcommon.ServerInfo) (rep
 		return trustcontroller.SimpleWriterProvider(new(NopReputationWriter)), nil
 	}
 
-	c, err := rtp.clientCache.Get(netAddr)
+	c, err := rtp.clientCache.Get(network.GroupFromAddress(netAddr))
 	if err != nil {
 		return nil, fmt.Errorf("could not initialize API client: %w", err)
 	}
diff --git a/pkg/innerring/rpc.go b/pkg/innerring/rpc.go
index ade22dbd0..584bb9301 100644
--- a/pkg/innerring/rpc.go
+++ b/pkg/innerring/rpc.go
@@ -22,7 +22,7 @@ type (
 	ClientCache struct {
 		log   *zap.Logger
 		cache interface {
-			Get(address network.Address) (client.Client, error)
+			Get(address network.AddressGroup) (client.Client, error)
 			CloseAll()
 		}
 		key *ecdsa.PrivateKey
@@ -52,7 +52,7 @@ func newClientCache(p *clientCacheParams) *ClientCache {
 func (c *ClientCache) Get(address network.Address) (client.Client, error) {
 	// Because cache is used by `ClientCache` exclusively,
 	// client will always have valid key.
-	return c.cache.Get(address)
+	return c.cache.Get(network.GroupFromAddress(address))
 }
 
 // GetSG polls the container from audit task to get the object by id.
diff --git a/pkg/network/cache/client.go b/pkg/network/cache/client.go
index 020dfb988..0ce87dac6 100644
--- a/pkg/network/cache/client.go
+++ b/pkg/network/cache/client.go
@@ -28,11 +28,16 @@ func NewSDKClientCache(opts ...client.Option) *ClientCache {
 }
 
 // Get function returns existing client or creates a new one.
-func (c *ClientCache) Get(netAddr network.Address) (client.Client, error) {
+func (c *ClientCache) Get(netAddr network.AddressGroup) (client.Client, error) {
 	// multiaddr is used as a key in client cache since
 	// same host may have different connections(with tls or not),
 	// therefore, host+port pair is not unique
-	mAddr := netAddr.String()
+
+	// FIXME: we should calculate map key regardless of the address order,
+	//  but network.StringifyGroup is order-dependent.
+	//  This works until the same mixed group is transmitted
+	//  (for a network map, it seems to be true).
+	mAddr := network.StringifyGroup(netAddr)
 
 	c.mu.RLock()
 	if cli, ok := c.clients[mAddr]; ok {
@@ -53,7 +58,7 @@ func (c *ClientCache) Get(netAddr network.Address) (client.Client, error) {
 		return cli, nil
 	}
 
-	cli := newMultiClient(network.GroupFromAddress(netAddr), c.opts)
+	cli := newMultiClient(netAddr, c.opts)
 
 	c.clients[mAddr] = cli