Hub 4 blue flashing light No connection

Right where do I start 

I renewed my contract via web portal 2am

Just after 1pm  internet goes off .

Hub 4 flashing blue light. Which some time turned yellow.  Some times green . Both flashing so my rooms like Blackpool illuminations right now 

Logging into router/hub shows registration failure 

Sometimes it says no RF signal detected .

I have phoned customer services twice. To make them aware was told on both occasions that it will be back on after some tests of the line

Well guess what?  It been 20 hour still nothing .

Router has been rebooted many times

Factory reset 4 times 

Was told to disconnect Coaxial for 30 min . Rebooted router and then factory reset for a hard reboot. And I still get them same 

Apparently no issues in the area . 

So is the fact that I happen to renew my contract purely coincidental to my service dying a few hours later.  This has also been pointed out over the phone to the service team twice 

Gonna be ringing support again 8am. 

Network logs show

No Ranging Response received-T3 time-out;CM-M

Received Response to Broadcast Maintenance

Request But no Unicast Maintenance opportunities received-14 timeout

Received Response to Broadcast Maintanance Request, But no Unicast Maintenance opportunities 

Over and over again .