I tried it once too with a N6680 cellphone. I can't access most options on the left menu. I always get redirected to the log-in page.
When I cleared the cookies and cache, the times I get redirected lessened. But I still can't access the write message, fleet menu, and the circular message.
But I still think that it was the cellphone that is giving me the problem. Maybe it does not have enough memory or something. 1kb/sec too.
Try to clear your cache and you must "allow cookies."