As said in my second post I am kind of doubting it is specifically a pb problem now, because I can reproduce the same problem just by going to "Windows 7 Basic" theme.
I can not use my guid unless I do pb_cl_enable, or use etlegacy.
My current ET install is completely in my user folder, this way I never have to use admin rights to play ET.
However I have been running it as admin now because I know pb requires it.
I tried installing a separate ET to its default place (in program files) and running it as admin, and still got same problem.
After some more testing, I managed to do a /pb_cl_enable and play on a server without pb fine, without it happening.
I was like wtf? Did I solve my problem somehow? I then tried to connect to a server with pb and the problem happened again. So I tried to connect to a server without pb again and it also happened then.
So in short, I believe I can restart my computer and play on non-pb servers with pb_cl_enable(so I am set for fa servers basically) until I connect to a pb server.
However the original reason I wanted to was because a lot of the public etpro servers have pb enabled still, so I still can't join there.
/edit forgot to mention I have tried all your stuff, but not in that exact order if that matters.. @theory (except that pb_lan 1 thing, will go give it a shot quick)
Edited by Zelly, 09 November 2015 - 12:35 PM.