I work on the network engineering team for a large university. Our wifi throughout campus uses two SSIDs, a secure SSID for registered users which uses EAS and WPA for authentication, and a guest SSID for anyone, with no authentication whatsoever.
So we've received a few tickets from users saying that their iOS6 devices will default to the guest network (even though the last used network was the secure network, both networks have been connected to before). It will default whenever the device is rebooted, the user leaves and returns later, or when the wifi is disabled and reenabled. We were able to duplicate the issue on both an IPad and IPhone running iOS6. I saw in some forums that it may be caused simply by alphabetical order of the SSIDs (guest before secure), so we created a test SSID called Auth-Test which was configured identically to our secure SSID and got the same results. We then configured the Auth-Test SSID to be an open SSID and lo and behold it became the SSID the devices would default to.
So while it does appear to use some alphabetizing but only after giving priority to an open network. I know the easy solution here would be to have each user remove the guest network from their device, but I'd like to know if anyone else has some experience with this or could possibly point out something I haven't tried.
Thanks for your help!
So we've received a few tickets from users saying that their iOS6 devices will default to the guest network (even though the last used network was the secure network, both networks have been connected to before). It will default whenever the device is rebooted, the user leaves and returns later, or when the wifi is disabled and reenabled. We were able to duplicate the issue on both an IPad and IPhone running iOS6. I saw in some forums that it may be caused simply by alphabetical order of the SSIDs (guest before secure), so we created a test SSID called Auth-Test which was configured identically to our secure SSID and got the same results. We then configured the Auth-Test SSID to be an open SSID and lo and behold it became the SSID the devices would default to.
So while it does appear to use some alphabetizing but only after giving priority to an open network. I know the easy solution here would be to have each user remove the guest network from their device, but I'd like to know if anyone else has some experience with this or could possibly point out something I haven't tried.
Thanks for your help!