Plutonium

Update.
I got my ip whitelisted about 2 days ago I was playing fine for those 2 days now it’s happening all over again. Now idk what to do

Ive been playing plutonium for the past few weeks perfectly fine no issues. Then the past 2 days i haven't been able to join any server because of the use of a vpn, but im not using any vpn. I haven’t made any changes so idk why it keeps happening. It’s happening on T6, IW4X, and MW3, can someone help please