Glad to hear you can play again
Alinoa is indeed the best

As I can see, your username is already berkin again, all good now?

I already forwarded this to Alinoa.

Very 'smart' to place all this personal data in a public forum
Spammers will be happy

Why did you not trigger the Ubisoft support again?

Don't you remember the e-mail address you were using when you had created your Maniaplanet account?

Please contact the support at Ubisoft, as they are handling account specific issues.

It has always been possible. However you need an account on which the game keys are registered with. And you need to connect the account online (online or silent) from time to time, for the player profile synchronization. Note: A pure local account does not allow to play alone, it can only be used f...

Ok, good luck then

What you could also try... If you have friends you can bring your PC to test on their internet, unless you can't because of covid restrictions...

Which router / internet modem do you have?
Perhaps you can check its settings, eventually do a firmware update or reset to factory presets.

When you installed windows, did you install other stuff first before installing Maniaplanet? Because some applications might block some ports, especially server applications, chat and download applications, even WAMPP does... If it appears randomly, perhaps it is because you don't use these applicat...

looks like you are having issues with the ports.

Check the firewall... and your antivirus.
Perhaps your internet connection (router) has wrong configuration as well.

There was a change in the player profiles some time ago.
This means you need to login at the website to migrate the profile to "maniaplanet v4".

Go here: https://www.maniaplanet.com/login

And then, after starting the game in Steam, use the same Maniaplanet account to log in.