11 months ago - AndrewT - Direct link
Please do a full **clean** re-install:

- move any valued save games elsewhere
- "uninstall" in Steam-EU4
- manually delete both the Steam/SteamApps/common/EU4 AND Documents/Paradox Interactive/EU4 folders
- re-install game in Steam, run a Steam Verify when done.
- add EU4.exe to the exceptions list of your antivirus app; ESPECIALLY if you have Windows Defender, add it to the Ransomware "Apps Allowed Through" list.
- start the game with no mods active and test

In particular make sure there are no files or folders left under either the Steam EU4 or Documents EU4 locations, before installing again.


IF that doesn't help:
DXDIAG is a program you run from the Windows search box on the task bar. After running it will open a window and start collecting info with a progress bar in the lower-left corner. When it completes click the 'save all information' button and save it to a file then attach that file here.

Please attach here your Documents/Paradox Interactive/EU4/settings.txt and pdx_settings.txt .
From your Documents/Paradox Interactive/EU4/logs/ folder, attach here system.log , error.log .  
11 months ago - AndrewT - Direct link
I think your Windows is out of date. Run the Updater app, does it find anything to do? If so apply that and reboot.

Then update that nVidia driver to May 2023 https://www.nvidia.com/Download/index.aspx?lang=en-us

If those don't help, Right click on eu4.exe , properties, compatibility. Tick "disable fullScreen optimisations" untick every other box in that dialog, Apply and exit.

Edit that settings.txt as follows:

refreshRate=60
fullScreen=yes
borderless=no

vsync=no

Then in the launcher Game Settings menu, select fullScreen display mode.

Does that help?  
11 months ago - AndrewT - Direct link
TomaSong said: maybe the account service or the network issue is the problem?
I take it you mean at your home end, as of course our end is the same from both your locations.
Hard to see how that could cause your various symptoms, but not impossible I suppose.

What if you make a new Windows user on the problem machine and log into it with that? Same problem?  
11 months ago - AndrewT - Direct link
TomaSong said: But this login failure issue only occured inside the game, the login process in paradox launcher doesn't have such problem, is there any difference?
One comes from Paradox Launcher.exe , the other eu4.exe . Both ought to be exempted in your firewalls.

Exactly how to do that, you'd need to check with your firewall vendor.

Good luck!