Hello
to be honest I haven’t a clue who is or why it was showing up…
However, your message got me thinking, so after carrying out a couple of thorough virus and malware scans (just to be safe) I reset my DNS bindings on the PC and router, checked the PC’s hosts file for anomalies, did a DNS flush and rebooted the router.
I’m pleased to say the Launcher now sees the Internet and I can get access to the engine/editor (still have to use the -http=wininet switch to get it to work though).
Anyway I couldn’t be more happy to have UE4 back… I can now have a proper play around with this Oculus Rift thing that’s been sitting on my desk for the last month or so 
Thanks to you and the rest of the staff at the UE4 Answerhub you’ve all been very helpful…
best wishes