linkerd2: continues error with message tcp forward duplex error: Transport endpoint is not connected (os error 107)

we are receiving this error continually, I searched but did not find any solutions

E  INFO proxy={server=out listen=127.0.0.1:4140 remote=10.44.2.3:42640} linkerd2_proxy::proxy::tcp forward duplex error: Transport endpoint is not connected (os error 107) 
E  INFO proxy={server=out listen=127.0.0.1:4140 remote=10.44.2.3:42068} linkerd2_proxy::proxy::tcp forward duplex error: Transport endpoint is not connected (os error 107) 
E  INFO proxy={server=out listen=127.0.0.1:4140 remote=10.44.2.3:42652} linkerd2_proxy::proxy::tcp forward duplex error: Transport endpoint is not connected (os error 107) 
E  INFO proxy={server=out listen=127.0.0.1:4140 remote=10.44.2.3:42050} linkerd2_proxy::proxy::tcp forward duplex error: Transport endpoint is not connected (os error 107) 
E  INFO proxy={server=out listen=127.0.0.1:4140 remote=10.44.2.3:42074} linkerd2_proxy::proxy::tcp forward duplex error: Transport endpoint is not connected (os error 107) 
E  INFO proxy={server=out listen=127.0.0.1:4140 remote=10.44.2.3:42212} linkerd2_proxy::proxy::tcp forward duplex error: Transport endpoint is not connected (os error 107) 
E  INFO proxy={server=out listen=127.0.0.1:4140 remote=10.44.2.3:42156} linkerd2_proxy::proxy::tcp forward duplex error: Transport endpoint is not connected (os error 107) 
E  INFO proxy={server=out listen=127.0.0.1:4140 remote=10.44.2.3:42280} linkerd2_proxy::proxy::tcp forward duplex error: Transport endpoint is not connected (os error 107) 
E  INFO proxy={server=out listen=127.0.0.1:4140 remote=10.44.2.3:42230} linkerd2_proxy::proxy::tcp forward duplex error: Transport endpoint is not connected (os error 107) 
E  INFO proxy={server=out listen=127.0.0.1:4140 remote=10.44.2.3:42380} linkerd2_proxy::proxy::tcp forward duplex error: Transport endpoint is not connected (os error 107) 
E  INFO proxy={server=out listen=127.0.0.1:4140 remote=10.44.2.3:42364} linkerd2_proxy::proxy::tcp forward duplex error: Transport endpoint is not connected (os error 107) 
E  INFO proxy={server=out listen=127.0.0.1:4140 remote=10.44.2.3:42320} linkerd2_proxy::proxy::tcp forward duplex error: Transport endpoint is not connected (os error 107) 
E  INFO proxy={server=out listen=127.0.0.1:4140 remote=10.44.2.3:42276} linkerd2_proxy::proxy::tcp forward duplex error: Transport endpoint is not connected (os error 107) 
E  INFO proxy={server=out listen=127.0.0.1:4140 remote=10.44.2.3:42414} linkerd2_proxy::proxy::tcp forward duplex error: Transport endpoint is not connected (os error 107) 
E  INFO proxy={server=out listen=127.0.0.1:4140 remote=10.44.2.3:42332} linkerd2_proxy::proxy::tcp forward duplex error: Transport endpoint is not connected (os error 107)
 

version info

Client version: stable-2.1.0
Server version: stable-2.1.0

Client Version: version.Info{Major:"1", Minor:"12", GitVersion:"v1.12.2", GitCommit:"17c77c7898218073f14c8d573582e8d2313dc740", GitTreeState:"clean", BuildDate:"2018-10-24T06:54:59Z", GoVersion:"go1.10.4", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"11+", GitVersion:"v1.11.4-gke.12", GitCommit:"d48a38d6599484b4b98c39d1c584a3662a67d486", GitTreeState:"clean", BuildDate:"2018-12-07T00:26:53Z", GoVersion:"go1.10.3b4", Compiler:"gc", Platform:"linux/amd64"}