Every couple of hours, I am unable to use abilities, crouch, hear party etc.. then about a minute later I'm returned to the log in screen saying check connection.

There is nothing wrong with my connection, internet speed is fastest in the area with Virgin, had a virgin engineer out a week ago to check everything and it's all working perfectly. I have unplugged everything, rebooted, opened NaT and still problems persist. I'm 99% sure it's nothing on my end. It's been happening for a couple of weeks now. Any info or fixes would be appreciated this is extremely frustrating.