Unable to Connect to EA Servers in EA FC 26 Ultimate Team on PC

I THINK I FOUND A SOLUTION!

Go to:

https://myaccount.ea.com/am/ui/security-privacy

Next, check your Two-Factor Authentication setting:

- If 2FA is ENABLED, disable it.

- If 2FA is DISABLED, enable it.

(Simply do the opposite of how it’s currently set) 

This has solved the issue for me after weeks, hopefully it helps others too!