After season 1 update, I am unable to play the campaign, I always get connection lost, with only retry and exit to desktop. I tried to verify the installation files, restart PC and router, wired and wireless connections but nothing works. People on steam also reported the same issue so I do not think it is from my internet.
I had this problem. I had to open the Command Prompt in Admin mode and run the following command. sfc /scannow revealed missing or corrupt system files. This fixed my issue.
Open command promt as administrator and run the following. sfc /scannow the system will find any missing files and replace them. This worked for me. Let me know if it works for you.
The fix that worked for me was in Windows Security. Turn on the memory safeguard protection if you haven't already, and boom, problem solved. Windows Security > Device Security > Core Isolation > Memory Integrity = On. Hope this helps.
I am have the same issue when I try to play campaign is saying connection.Lost every time
