Original Post — Direct link

https://imgur.com/a/HQMay3r

Beth-esda replied: Beth said: This error is typically caused by a restriction on your local network. The steps below will help identify and resolve the issue. If you have edited your .ini files, move the .ini file to your desktop. Add Fallout 76 to your exceptions in your firewall and anti-virus software. Bethesda.net Launcher/Steam: The two files you want to ensure have the exceptions are located by default at the following directories: Fallout 76.exe - C:\Program Files (x86)\Bethesda.net Launcher\games\Fallout76 BethesdaNetLauncher.exe - C:\Program Files (x86)\Bethesda.net Launcher PC Game Pass: C:\Program Files\ModifiableWIndowsApps\Fallout76\Project76_GamePass.exe Ensure that your PC's Local Security Authority Process (lsass.exe) is white listed in your Firewall and Anti-virus software Make sure Ports: 80 (TCP), 443 (TCP), 3000-3010 (UDP) are open on your router If using a wired connection, switch to wireless and vice versa. Flush your DNS: If your ISP is using a non public IP address by default, then you will need to change your routers APN settings to use public IP. Note: If you have made exceptions and followed all the steps above, it may have to do with your NAT Filtering and DNS settings in your router. As the instructions to resolve these are specific to your router, please contact your router manufacturer instructions. If your issue persists, submit a ticket to Bethesda Customer Support with your information and details.

External link →
almost 3 years ago - /u/Ladydevann - Direct link

Hey there! If you Scan and Repair the game this should resolve the issue.