It is saying password incorrect when entering password on router

[Becky2]

The password with the router is incorrect, what can we do

[forestdweller]

I had the same problem after endlessly checking that I entered the password correctly. Tried in uppercase, lower case and mixed case as detailed on the router - all to no avail. This was from my desktop PC. I then tried pressing the wps button on the router and this allowed a connection between the router and my PC without the use of the password. I could then enter the router and change the password to something I could remember. This worked OK and I could then connect my other devices using the new password. Maybe this will help you - fingers crossed!

[BERNARDB]

The other option is to reset the router to factory settings and then try again

[RoyB]

@BERNARDB @Becky2 

Which is useful only if the password printed on the label under the router is correct, and someone has changed the password on the router.

WPS, as recommended by @forestdweller, avoids this happenstance.