Can't sign into windows live anymore...

Sup guys so I woke up this morning and came on to play some DkS and it will connect to GFWL but won't sign me in. I haven't changed anything on my computer. Same problem when I tried to sign in for GTA IV.

This is driving me insane because every thread online for it just talks about port forwarding etc but the thing is it was working perfectly until today...

I've even tried turning the firewall off completely and restarting modem and computer and it still doesn't let me sign in. It's still happening after like 4 hours.

Any ideas?

"The live service may be unavailable, or there may be an issue with your home networking equipment" error message. Just tried Mortal Kombat Kollection and exact same problem.

Sorry for triple post.... But finally finding the forum for GFWL (which looks like a bloody xbox forum) it turns out the problem is on their end and has been happening for some people since 08/02/2013.

Just in case you're having the same issue, there you go.