Join Date: Aug 2009
Location: Split, Croatia
Car: Rover 200 (95-99) 'Bubble Shape'
This looks odd to me. Like you, I am also not using PC or notebook for accessing site. I am accessing site via my Samsung tablet on Android, but I am using Firefox browser on it. Nevertheless what I am using Firefox, native browser is good as same.
I have no problems accessing the site, and each time I come again, I am logged in, without any problems. I can open eBay in another browser window, and come back to site without any problems. When I close the browser and come back I am still logged in.
To me this looks like you set up security measure to clear your cache and history each time you exit the browser you are using. In that case, all cookies will be cleared and thus you will be logged out from the site every time you close the browser.
Regarding switching to another site like eBay, to me this looks like even stronger security setting, that when you jump to another site, all cache, cookies and history is cleared too.