We have an SSID named “Geiger Secured Wireless”. The network uses WPA2 with a Radius server. Users are able to connect to the network without issue. At random intervals users are no longer able to connect to any network resources. About a minute after that the wireless icon down by the clock gets a yellow exclamation stating “no internet”. (Limited or no connectivity on xp machines) The network and sharing center seems stuck on “identifying” or will switch to “geiger.com 2 unauthenticated” then back to “identifying”. Normally it says the network name is “Geiger.com”. If I run the network troubleshooter it reports that the default gateway is not available. After about 5 or 10 minutes it will re-connect and everything will be fine. This occurs every half hour or so.
When I get the yellow exclamation I am no longer able to ping the DHCP / DNS or the default gatway. I can ping the Meraki access point I’m connected to. Although I cannot open “my.meraki.com”. It does not affect all clients at the same time. The Meraki web portal does not report the access point as down and using the built in ping tool I am able to ping the client.
HP Elitebook 2540p, Windows 7 32-bit, Intel Centrino Advanced-N 6200 AGN. All of the elitebooks have the same wireless card however different versions of the driver. Some have SP1 for windows 7 and some don’t. I have updated the driver directly from Intel’s website without any change.
Dell D620, Windows XP SP3, Dell Wireless 1390 Wireless Mini-Card. has issues but less frequent than Elitebooks.
Dell e6420, Windows 7 64-bit SP1, DW1501 Wireless-N Wlan half-mini card. This is the only laptop that has not had the issue. It has been connected solidly for 2 days without issue.
I have attached a copy of the Network troubleshooting wizard results.