Fallout 76 TLS Client Key Exchange fails when firewall is active

Comodo Internet Security - CIS Firewall Help - CIS
1

Topic really…I have added both the Bethesda Launcher and Fallout76 proper to my application whitelist in the firewall. The firewall is the only thing active (no av, nothing else). My current process to play the game:

[ol]- Start the game

  • Disable the firewall
  • Wait to join world
  • Enable the firewall[/ol]

The included screenshot shows a broken session above, and a working session below. Anything I can do to troubleshoot this on my end? Thank you.

2

Do you have block fragmented IP traffic enabled? Or do protocol analysis? If yes then try disabling those options. Also check the firewall log for any blocked events. What version of the firewall do you have?

3

Thanks for the quick response. Protocol analysis was enabled, but I got the same results disabling it. Interestingly, disabling filtering of IPv6 fixed the issue, even though IPv6 is disabled at the edge so ¯_(ツ)_/¯