Yes, Fat Tire has been experiencing log in issue for the last week or so...
I don't believe it's a PunkBuster issue, he's been able to log in and play some maps... However I did suggest to him, deleting all maps/mod... Your maps can be found in "YOUR INSTALL DRIVE:\Users\???\AppData\Local\Activision\CoDWaW\usermaps" and mod in "YOUR INSTALL DRIVE:\Users\???\AppData\Local\Activision\CoDWaW\mods\xifreeze"... Once done removing all, dowloading the XI Downloader 2.0.2.0 from "https://www.xtremeidiots.com/files/download/18-xi-downloader/"... As per out conversation two nights ago... Perhaps that may help!
Fat Tire, if you have any further issues shoot me a PM and we can meet up on Team Speak!!
Take care...