Wireless connection issue

Hi,
I've Windows 7 Ultimate and up until this week I had no issue with wireless connection and it still works but here is the problem.
For about a week everytime I log into my Windows, my wireless connection icon on the system tray shows with "X" but if I click on troubleshoot then after couple of minutes it comes up with 2 options and the 1st one is check to see if the problem is resolved and if I choose that then in a minute the wireless is up and running and the troubleshooting wizard actually ends with saying there are 2 issues so what I've done is after the connection is back up then I close the troubleshooting wizard and everything works fine.

I didn't had this issue before, I've been using Windows 7 for almost 6 months now and only for the past week or so everytime I goes into Windows for the 1st time I've no wireless connection and I've to start troubleshooting wizard to get it work.

I'm wondering could this be something to do with some setting; I've tried rebooting the router even though it works fine on the other machine and on my other WIFI devices with no luck.

Thanks,

I'm on a Toshiba laptop.

drivers are installed properly and i tried to upgrade and i get the msg that the system has the latest driver for it....i can try to uninstall it and re-install and see if that makes any difference.

reinstall the driver and the problem got fixed and later found there's a new driver for it too so all good.
thanks to Uber Philf

I've got a similar issue. I've just upgraded to Windows7, previously everything was fine. Now I can connect through the LAN to everything. However when I connect Wireless I can get on the network but not the internet my error message is 'Cannot communicate with DNS service'. My router is Linksys WAG160N. My adapter is Atheros AR5007 and my laptop is a Compaq CG60-430SA. It took me ages to find the latest driver on the HP site and it made no difference. All the drivers are up to date, the router has been reset and my hair has been pulled out. any other ideas? I've un-installed and reinstalled, rolled back, dissabled, enabled.