Alright so just one day VS2015 RC Stopped working.
The problem is that I have to sign in but signing in doesn\'t work. I have to update my license but the only way t
Installing IE10 fixed this problem for me. http://download.microsoft.com/download/8/A/C/8AC7C482-BC74-492E-B978-7ED04900CEDE/IE10-Windows6.1-x86-en-us.exe -Internet Explorer 10 (32-bit) http://download.microsoft.com/download/C/E/0/CE0AB8AE-E6B7-43F7-9290-F8EB0EA54FB5/IE10-Windows6.1-x64-en-us.exe - Internet Explorer 10 (64-bit)
I'm a little late to the party, but you should probably upgrade to Visual Studio 2015 RTM (Community Edition). It's free and probably fixes a few bugs in the process.
Turning back your system date for few days sort out my problem.
I know, It is just temporary solution to move on the things, otherwise you have to keep updated your license, Windows and Visual Studio 2015 to solve the problem.