I have a WCF service (WebHttpBinding) running successfully. I call it from browser like this:
http://xxxxx:9000/LicenseService/GetInterfaceVersion
Then browser displays: "1.0"
The WCF service is running successfully for years, which is being accessed from different operating systems (Win7, Win10), including virtual machines. However, service is not accessible from a Windows Server 2022 virtual PC. The error on the browser is ERR_CONNECTION_RESET.
I used Wireshark to monitor WCF server port. Here the result:
> 249 18.503053 from:wcf_client to:wcf_server TCP 66 56249 → 9000 [SYN, ECN, CWR] Seq=0 Win=64240 Len=0 MSS=1340 WS=256 SACK_PERM=1
> 250 18.503138 from:wcf_server to:wcf_client TCP 66 9000 → 56249 [SYN, ACK] Seq=0 Ack=1 Win=65535 Len=0 MSS=1360 WS=256 SACK_PERM=1
> 257 18.731672 from:wcf_client to:wcf_server TCP 60 56249 → 9000 [ACK] Seq=1 Ack=1 Win=1573632 Len=0
> 258 18.732173 from:wcf_client to:wcf_server TCP 60 56249 → 9000 [RST, ACK] Seq=1 Ack=1 Win=1573632 Len=0
The RST can be seen in the last line.
What can be the root cause of issue. It is not SSL/TLS issue, because connection is HTTP.
Note: I enabled trace of WCF service. However, the client request is not visible in trace.
Thanks
