Sophos Connect Client TCP_CLIENT: Unknown error (code=10060)

Question

Hello, 
 I'm using XGS2300 (SFOS 19.5.1 MR-1-Build278), sophos connect 2.2.90.1104 with latest pattern updates (Sophos Connect - 2.2.090 and SSL VPN clients - 1.0.009). I have set up SSL VPN remote access with microsoft Azure MFA and nps server. The connection seems to restart for some reason, I've looked at different discussions but I didn't find an answer I was looking for or which would work. The certificate for ssl vpn is installed on the device. Also I have the port set up for 443 instead of 8443. 
 Here's the log: 
 2023-04-13 12:51:24PM [2852] dbg xxxxxxxx.cz VPN state changed to connecting 2023-04-13 12:51:24PM [2852] dbg Starting tunnel (connecting) 2023-04-13 12:51:24PM [2852] inf Remote added to list: xxxxxxxx.cz 443 2023-04-13 12:51:27PM [2852] dbg Tunnel initiated to xxxxxxxx.cz 443 2023-04-13 12:51:43PM [3944] dbg WARNING: this configuration may cache passwords in memory -- use the auth-nocache option to prevent this 2023-04-13 12:51:43PM [3944] dbg WARNING: this configuration may cache passwords in memory -- use the auth-nocache option to prevent this 2023-04-13 12:51:43PM [3944] dbg Connection to open vpn has been established 2023-04-13 12:51:43PM [3944] dbg Adding watch for physical IP xxx.xxx.xxx.xxx down 2023-04-13 12:51:43PM [3944] dbg xxxxxxxx.cz VPN state changed to connected 2023-04-13 01:29:31PM [3944] dbg read TCP_CLIENT: Unknown error (code=10060) 2023-04-13 01:29:31PM [3944] dbg read TCP_CLIENT: Unknown error (code=10060) 2023-04-13 01:29:31PM [3944] dbg Connection reset, restarting [-1] 2023-04-13 01:29:31PM [3944] dbg Received connection reset 2023-04-13 01:29:31PM [3944] dbg xxxxxxxx.cz VPN state changed to disconnecting 2023-04-13 01:29:31PM [2852] dbg Tunnel is stopped 2023-04-13 01:29:44PM [3944] dbg received exiting event 2023-04-13 01:29:44PM [6412] dbg xxxxxxxx.cz VPN state changed to disconnected 2023-04-13 01:29:44PM [6412] dbg Sending notification: Received connection reset from gateway: xxxxxxxx.cz 443 
 There's another thing I would like to ask. Everytime I try to connect to a provisioning file connection and manage to authorize, the connection keeps loading until it ends with "the server response took too long" after that it starts connection again, I manage to authorize and then I connect. I know that the provisioning file should import the connection for my account which is working fine. I've been trying to fix this for some time now but without success.

VGDtech · Accepted Answer

None of the fixes worked for me but I found this https://learn.microsoft.com/en-us/troubleshoot/windows-client/networking/10060-connection-timed-out-with-proxy-server 
 This has helped me to resolve the issue 
 Thank you, Regards 
 VGDtech

Erick Jan · Answer

Hi VGDtech, 
 Thank you for reaching out to Sophos Community. 
 Can we verify how many users are affected or only a single device? 
 The error logs line " read TCP_CLIENT: Unknown error (code=10060)." 
 The network connection on the Windows machine is lost, which lead to OpenVPN tunnel disruption. 
 Kindly check the following: https://forums.openvpn.net/viewtopic.php?t=28049 
 Also, kindly try to use a different machine and network for isolation.

Vivek Jagad · Answer

Hello VGDtech ,

Thank you for reaching out to the community, This error is an error reported by the operating system's methods of communicating with the outside world. And they're saying that the connection was lost. This has nothing to do with an OpenVPN problem. This is a connection problem.

In short, your connection is getting disrupted, and OpenVPN then can't do its job.

https://ugetfix.com/ask/how-to-fix-socket-error-10060-on-windows/

Sophos Connect Client TCP_CLIENT: Unknown error (code=10060)

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