Login to asp.net 4.0 with Android not working?

I have a website that runs on ASP.NET 4.0.

Unfortunately people with Android phones cannot login. Based on the logs, it could be a cookie/session issue开发者_Python百科. But I'm a bit lost. I'm using basic form authentication.

Couldn't find anything about this topic in Google either.

It works on Chrome and it also works with the Android Simulator.

Anyone had this issue?

Most logins now work on the newer version of Android. No idea what it was, but not an issue anymore.