Server requesting username and password

It could be that some glitch has occurred in the actual router as I doubt multiple machines will suffer the same issue simultaneously.

There should be a way to to manually re-set the router this will normally be a recessed button that needs to be depressed for some set time to reset the device to factory settings. Check the manual for the router for actual procedure

Not the ideal solution but may be your only option here

Hi Mike,

There are normally two different re-set levels on a router.

The first level is just a quick reset that leaves any custom settings in place just clearing the cache and such, and is basically the same as switching off power, this in normally achieved by a simple press and release of the button.

The second level which completely resets the router to the factory setting removing all user customisations, is normally achieved by pressing the button and holding it pressed for anything up-to 30 seconds.

Did you perform the second type of reset?

Hi Mike

Am clutching at straws here, as the fact that three PCs have the same problem It would suggest that the problem is in the router and you have re-set that

is this a wired or wireless setup?
have you made any system wide hardware or software change recently?
What AV / firewall is on the machines?

If it's a wireless setup and the router has a connect button this may get past the blockage, or connecting wired may also do it.

Other things I would try is to delete the driver for the network card and re-install.

Or you could try a system restore to a time before the problem - but again logically must be the router and not the PC.

I suppose just to be sure you could boot into safe mode with networking and see if that changes anything

Run an AV scan to rule out that possibility

Hi Mike,

Just glad to see you are back up and running.

I knew it had to be the router :)

Take the opportunity to backup your router settings to a file and save it to your PC. The next time you run across problems and you need to reset the router, you can use this backup file to restore your settings quickly and effortlessly. See your router manual for guidance.