No internet since Thursday evening. Back on last night. Smart TVs now have error codes on Netflix et

[netball1]

Broadband went off last Thursday evening. Back on now. Smart TVs are connected to WiFi. Now all TVs show error codes for BBC Iplay, Netflix etc. Security cameras and central heating thermostat will not connect to WiFi. Tried the usual fixes, turning the router off and unplugged TVs from power. Nothing works, HELP.

500 help line is useless. 3 stores do not answer the phone 

[simon_kite]

change your APN on the router to the mobile phone one three.co.uk

They have IPv4 routing issues on the BB APN

[BillBones]

Hello Simon_kite.

How do you change your APN to three.co.uk?