Power cuts often do leave routers with an issue, if there's been a surge as well, @Mycjets.
You'll need to contact Talktalk directly for them to check your router and possibly replace it if it's now faulty.
There's no staff support on here.
Phone or use Live Chat:
https://help-centre.talktalk.co.uk/Billing_and_Payments/Something_else/How_to_contact_TalkTalk_Broad...
Gliwmaeden2, a fellow customer.
From the 29th of March our TalkTalk Community will move to peer-to-peer support and the TalkTalk team will no longer be here to support with queries. Don’t worry we still have plenty of ways to reach out if you need to speak to TalkTalk directly. For more details check out the link in the post at the top of any forum message board.
