For those of you who may be having trouble accessing tradgang on their at&t wireless phone, this may be a solution. I have a Nokia Lumina windows phone through at&t. I could log into the website and browse but couldn't do any activity such as make posts or check my profile. I was using Bing as my default browser, now I have switched to google. I also cleared my history, cache, cookies,and passwords. So far I have been able to return to normal activities. If you are having trouble I hope this helps.
This is a great site, can't imagine not being able to enjoy it. Thanks