In order to get internet access you have to join the network.Are these Win 7 machines and are you trying to join the network or just get internet access?
Bingo! 802.11b only supports the WEP security protocol, whereas your new router is almost definitely set up by default for something more advanced, like WPA2. Two choices: replace the Cisco adapters (better choice) or lower your security protocol to WEP (worse choice; this protocol provides weak security).I briefly looked those up...they are wireless B only (from what I could tell in 30 seconds of googling) might have something to do with it...
802.11b supports WPA2 but that Cisco card probably doesn't.Bingo! 802.11b only supports the WEP security protocol
Not according to Microsoft: How to Make Your 802.11b Wireless Home Network More Secure802.11b supports WPA2