It's random but after awhile of using the client I will occasionally get logged out and upon trying to relog back into the game Runescape says I have exceeded my login limit as if I have multiple logged in accounts. However I am only using the client for one account at a time... I'm the only person in my household who plays RS. Not sure if this would be client based. I play fine when on normal browser or even on OSBuddy, even on p****bot.