From my small knowledge of how this works, do you hit the 'remember me' button when you log in? That should help.
If you are already doing that, I have no idea.
But I'm sure someone else will know.
On the internet no one knows you are typing with your beak.
An exercise in futility still counts as exercise!!
"There's a pattern to the randomness!" ~ Artie ~ Warehouse 13
"That's the only break you get, so I hope you enjoyed it" ~~Cathe, STS, Meso 2
"Weakness is hard, but weakness doesn't have to mean defeat!" ~ Lysa TerKeurst