Unable to login to the server

I have a problem and several have it.
I turn on the game and when entering the name and password, just write Connecting.
I also tried to clear the cache, updating windows in everything possible did not help, it was working until now and suddenly it has not been working for the last 2 days. this is 3.3.5

Try opening CMD and use this command

Код:

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ipconfig /flushdns

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Sometimes it may take several repeated commands to join the server.

It didn't help at all

Should already work fine.