Wireless 802.11g/b compatability

After nearly a week of troubleshooting my laptop's wireless connection I've finally come to the comclusion there is a compatability problem between my laptop's 802.11g adapter (atheros AR5005G) and my linksys 802.11b router.

The laptop can see the network, is able to connect and is issued an IP address by the router, however i am unable to ping the router or access any of the resources on the network. I have had the laptop working on other 802.11g network last night, so I know it definatley works.

Has anyone else had any problems getting a 802.11g card to work on an 802.11b router?

I have a similar problem andy. I have a belkin 'airgo' true mimo Pre-N wireless card, and i have a problem connecting to a linksys wireless b router. Windows tells me its not connected, but i can still connect to the internet thru the connection.

How and ever, it drops the connection after about 5 mins and i have to eject and re-insert my card. This can become quite annoying, especially when downloading stuff.

If anyone knows a solution, plz help!