TalkTalk router - bar unknown user

[PhilA3]

Someone has linked into my router (unknown to me). How do I get access to my router to bar them from accessing it?

[Divsec]

Hi @PhilA3 try thus https://community.talktalk.co.uk/t5/Articles/How-do-I-view-or-change-my-Wi-Fi-name-and-password/ta-p...

Changing these will throw them out.