'Unable (/could not) to open communication device' Error message.

Hi everyone!

I was having trouble connecting to someone elses router.

I let them 'try' to solve it whilst I searched for help on their computer. (stupid of me because they know nothing about computers and could have changed almost any setting):

I solved the orginal problem of not connecting to their router. (Different channel)

But now I get this message - Could not connect to communication device.

I can't think of anything I have changed. I have gone through anything I would have changed- I think...

Anyway, I can connect to the internet but I usually get the error message when trying to get online.

Is there anything that you guys can think of, that might be the cause?



Thank you for your time.