Changing DNS without account gets locked

Hi, I'm from Iran and as you guys might know there is a lot of restrictions when it comes to Internet and well, that's also true when it comes to warmane
and I already did tried using VPN but the ping is too high and kinda un-playable, recently I tried using DNS to solve my problem and I can't say it fixed because warmane has this security check that when your DNS changes (to some, not all) and you try to log-in, you'll get a error message saying "This account is locked/suspended but it can be unlocked" and I know that changing your DNS back to default setting will unlock your account and some DNS like 1.1.1.1 do not have such a issue
Things that i tried and didn't resolved the issue:
Resetting router
Flushing DNS cache (both from browser and system)
re-logging to the site (I also tested the incognito mode)

So in a nutshell, I want to change my DNS without my account gets locked

Any help appreciated :)