So, it turns out that both XFArcade.com & GitHub.com are blocked by our corporate firewalls. Our local regional office has own our firewall rules which is not a problem (I'm one the developers) but all of our LAN traffic is routed through our parent corporations WAN. We control the LAN, corporate security controls the WAN.
So... for about 2/3 of the work week I am unable to access a bunch of stuff.
So... for about 2/3 of the work week I am unable to access a bunch of stuff.