30-12-2022 17:03
Do a factory reset to the router. As it might have been set up incorrectly, factory reset should put it back to the correct password.
https://help.nowtv.com/article/improve-broadband-speed
30-12-2022 22:26
And if still no go, check the card matches what is on the label on the underside of the router.
In extremis, find something you can set up on the router with WPS, and use that to see what the router thinks its password is.