When I right click on the wireless icon, the Wireless Network Connection Status box comes up.
It is divided into Connection, within which - across from Status - it says "Validating Identity".
on the left side do you see change advance settings?
I recently ran into a problem with a wireless network card getting stuck while acquiring a network address.
While the modem seems to be operating properly, on her laptop, the only computer she has, running Windows XP, when connecting to the wireless network, at the bottom of the screen, I get an [endless] message, Windows was unable to find a certificate to log you onto the **** network.
The icon has a small yellow ball going from left to right and back again underneath it.
Also, Since I Was Able To Connect From My Laptop With No Problem, It Led Me Now Click On The Wireless Networks Tab And Select The Network In The List At It Struck Me…
And Thus When Validating My Identity, I Unchecked That .
I thought that at first, perhaps, a virus and/or malware somehow got by and changed/altered the wireless settings, though the antivirus software and Malwarebytes software is up-to-date and is showing no problems. One of these may be doing strange things with the connection. If that does not work it could be a newtork card driver issue. However, before you do that I would advise you to make sure that you have the driver disc for that netcard (or for the notebook if it is an internal Wi Fi netcard), because Windows will often not have built-in drivers for any given netcard.
One way to restore networking, especially wireless, is to go into control panel, system and delete the network card. Since you mentioned that this notebook had previously been setup for multiple wireless profiles, my suggestion would be to delete all existing wireless profiles and see if that allows you to then create a new profile for the Comcast gateway.