If it's the same as mine, just tap refresh every once in a while, it'll auto-login even on a page where it's lost the login. No need to enter any sign-in info. I haven't tried just spamming refresh until it works, but even that might work, but at least hitting F5 with a minute in between seems to do the trick after two tries max.Sign-In > Home > News > Sign-In > Home > News > ...
If it's the same as mine, just tap refresh every once in a while, it'll auto-login even on a page where it's lost the login.