[bug/error] Not Logged in when coming from different IP?

[Cache]

Hi

 

Just wondered if something has changed recently? I logged in today at work and logged in successfully, but then visited various pages flicking between being logged in and logged out.

 

I narrowed it down to being Cumbria's round robin proxy as if I work out which proxy the login request went through and specify it then I stay logged in, switching to one of the others I get logged out.

 

I don't remember it being this way before the summer, but I could be wrong.