diff --git a/app.go b/app.go
index ce51cef..bd9dd1d 100644
--- a/app.go
+++ b/app.go
@@ -114,6 +114,7 @@ func newApp(ctx context.Context, opt ...Option) App {
 	prm.SetNodeDialTimeout(a.cfg.GetDuration(cfgConTimeout))
 	prm.SetHealthcheckTimeout(a.cfg.GetDuration(cfgReqTimeout))
 	prm.SetClientRebalanceInterval(a.cfg.GetDuration(cfgRebalance))
+	prm.SetErrorThreshold(a.cfg.GetUint32(cfgPoolErrorThreshold))
 
 	for i := 0; ; i++ {
 		address := a.cfg.GetString(cfgPeers + "." + strconv.Itoa(i) + ".address")
diff --git a/config/config.env b/config/config.env
index 7f7b406..d6258fb 100644
--- a/config/config.env
+++ b/config/config.env
@@ -83,6 +83,8 @@ HTTP_GW_CONNECT_TIMEOUT=5s
 HTTP_GW_REQUEST_TIMEOUT=5s
 # Interval to check nodes health.
 HTTP_GW_REBALANCE_TIMER=30s
+# The number of errors on connection after which node is considered as unhealthy
+S3_GW_POOL_ERROR_THRESHOLD=100
 
 # Enable zip compression to download files by common prefix.
 HTTP_GW_ZIP_COMPRESSION=false
diff --git a/config/config.yaml b/config/config.yaml
index d3b5e9a..ef784ed 100644
--- a/config/config.yaml
+++ b/config/config.yaml
@@ -84,6 +84,7 @@ upload_header:
 connect_timeout: 5s # Timeout to dial node.
 request_timeout: 5s # Timeout to check node health during rebalance.
 rebalance_timer: 30s # Interval to check nodes health.
+pool_error_threshold: 100 # The number of errors on connection after which node is considered as unhealthy.
 
 zip:
   compression: false # Enable zip compression to download files by common prefix.
diff --git a/docs/gate-configuration.md b/docs/gate-configuration.md
index 040ae1b..4661aa5 100644
--- a/docs/gate-configuration.md
+++ b/docs/gate-configuration.md
@@ -37,19 +37,21 @@ resolve_order:
 
 connect_timeout: 5s 
 request_timeout: 5s 
-rebalance_timer: 30s 
+rebalance_timer: 30s
+pool_error_threshold: 100
 ```
 
-| Parameter         | Type       | Default value  | Description                                                                        |
-|-------------------|------------|----------------|------------------------------------------------------------------------------------|
-| `listen_address`  | `string`   | `0.0.0.0:8082` | The address that the gateway is listening on.                                      |
-| `tls_certificate` | `string`   |                | Path to the TLS certificate.                                                       |
-| `tls_key`         | `string`   |                | Path to the TLS key.                                                               |
-| `rpc_endpoint`    | `string`   |                | The address of the RPC host to which the gateway connects to resolve bucket names. |
-| `resolve_order`   | `[]string` | `[nns, dns]`   | Order of bucket name resolvers to use.                                             |
-| `connect_timeout` | `duration` | `10s`          | Timeout to connect to a node.                                                      |
-| `request_timeout` | `duration` | `15s`          | Timeout to check node health during rebalance.                                     |
-| `rebalance_timer` | `duration` | `60s`          | Interval to check node health.                                                     |
+| Parameter              | Type       | Default value  | Description                                                                        |
+|------------------------|------------|----------------|------------------------------------------------------------------------------------|
+| `listen_address`       | `string`   | `0.0.0.0:8082` | The address that the gateway is listening on.                                      |
+| `tls_certificate`      | `string`   |                | Path to the TLS certificate.                                                       |
+| `tls_key`              | `string`   |                | Path to the TLS key.                                                               |
+| `rpc_endpoint`         | `string`   |                | The address of the RPC host to which the gateway connects to resolve bucket names. |
+| `resolve_order`        | `[]string` | `[nns, dns]`   | Order of bucket name resolvers to use.                                             |
+| `connect_timeout`      | `duration` | `10s`          | Timeout to connect to a node.                                                      |
+| `request_timeout`      | `duration` | `15s`          | Timeout to check node health during rebalance.                                     |
+| `rebalance_timer`      | `duration` | `60s`          | Interval to check node health.                                                     |
+| `pool_error_threshold` | `uint32`   | `100`          | The number of errors on connection after which node is considered as unhealthy.    |
 
 # `wallet` section
 
diff --git a/settings.go b/settings.go
index e99f701..c6ad084 100644
--- a/settings.go
+++ b/settings.go
@@ -22,6 +22,8 @@ const (
 
 	defaultShutdownTimeout = 15 * time.Second
 
+	defaultPoolErrorThreshold uint32 = 100
+
 	cfgListenAddress  = "listen_address"
 	cfgTLSCertificate = "tls_certificate"
 	cfgTLSKey         = "tls_key"
@@ -40,10 +42,11 @@ const (
 	cfgPprofEnabled      = "pprof.enabled"
 	cfgPprofAddress      = "pprof.address"
 
-	// Timeouts.
-	cfgConTimeout = "connect_timeout"
-	cfgReqTimeout = "request_timeout"
-	cfgRebalance  = "rebalance_timer"
+	// Pool config.
+	cfgConTimeout         = "connect_timeout"
+	cfgReqTimeout         = "request_timeout"
+	cfgRebalance          = "rebalance_timer"
+	cfgPoolErrorThreshold = "pool_error_threshold"
 
 	// Logger.
 	cfgLoggerLevel = "logger.level"
@@ -122,6 +125,9 @@ func settings() *viper.Viper {
 	// logger:
 	v.SetDefault(cfgLoggerLevel, "debug")
 
+	// pool:
+	v.SetDefault(cfgPoolErrorThreshold, defaultPoolErrorThreshold)
+
 	// web-server:
 	v.SetDefault(cfgWebReadBufferSize, 4096)
 	v.SetDefault(cfgWebWriteBufferSize, 4096)