Sophos Connect Connection reset from gateway

Hello Dylan Huberty ,

Thank you for reaching out to the community, You can refer the general troubleshooting guide here.

Cause

SSL VPN settings are changed on Sophos Firewall, a user is manually disconnected or Sophos Firewall restarts. If the connection uses SSL VPN over TCP, Sophos Firewall sends a connection reset request. If the connection uses SSL VPN over UDP, the connection may reconnect automatically depending on the idle time-out period.

Remedy

Import a new configuration file into the Sophos Connect client and then reconnect.

1. If your firewall administrator hasn't sent you the file, go to the user portal and download it.
2. Otherwise, go to the user portal to download the ovpn file.

Some providers do crazy things with "non-standard" tcp-ports. Could you try to configure your SSL-VPN to tcp-port 443 ?

Or you use IPsec instead.

I am also having the Exact issue but the After connecting the VPN if I try to access the Company bypass link the connection gets disconnected but if I try the process on my mobile I am able to access the bypass link 

Hey Ajay Setti have you checked the Remedy mentioned ?

I installed the VPN in my virtual box and started to run then I was able to access the company bypass link

Do you any firewall settings that may restrict the vpn

Check the permitted networks in the SSL VPN Policy and check the VPN to LAN firewall rule !

I'm also experiencing this issue, but only on one machine which has been working fine for months.

All of the other computers in the network can use the VPN with no issues, i have uninstalled sophos connect and re added the config file with the same results, i have even download other users config files that are working to test on this machine and it still has the same issue.

any ideas?

Have you tried re-installing the client ?

Yep, i have uninstalled the client and reinstalled and tried multiple different configs.

Then was there any change on a system level, like the windows update ?