Wireless - Location Issues

[Ryan_Reb]

Hello. Our current setup is we have two CS-4110 wireless controllers that manage all of our AP's. They are a mix of AP3610's and AP3715i's in 20 different building locations across the city. Each location has it's own DHCP scope. We have 3 wireless SSID networks that are configured via tagged vlan traffic that all route back to a central DHCP server. One is a guest network that gives only webpage access and then two enterprise networks that give access to our network (one giving N level wireless and the other still on G). The two Enterprise SSID's pull addresses from the same scope and the Guest is on it's own. All SSID's are names the same at each location with the same psk's. This means we can travel to any site and have access to the wireless network.

We are starting to run into an issue in our school district where we take a device to one location, like a school, it connects no problem to the network but when if we travel to a different site, the device (like my windows 7 pro laptop and my iphone 5s) see the networks but will not join automatically. They just sit trying to connect. However, here's the weird thing, if we join the device to our Guest network and then back to the Enterprise, then it works. We've tried doing a ipconfig release, tried rebooting the device, powering completely off and even deleting the wireless sites from the computer and then rejoining for the first time. It will not join the Enterprise network until we manually tell it to join Guest, allow it to connect and then tell it to join Enterprise, then it works.

This issue started mostly with Apple devices like iPads and iPhones but now it's starting to affect Windows 7 laptops. We've checked our DHCP scopes and DNS records but can't find any issues.

We'd really appreciate suggestions. Please let me know if you have any questions.

Thank you.

[Brian_Townsend]

Ryan,

Good day. I hope you are well. Can you confirm that your issue has been resolved? We would like to help if you are still seeing issues.

You can respond within theHUB or contact me directly

Brian Townsend
btownsen@extremenetworks.com

[Ryan_Reb]

It does appear that disabling the Inter-WLAN Service Roaming has resolved this issue. I've been to three different locations this morning and my iphone hasn't had any issues connecting to the network now. I will continue to test with various devices. Thank you for your help.

[Ronald_Dvorak]

Don't get me wrong the problem description was great but sometimes it's hard to be 100% sure about the root cause of an issue without some reports from the EWC or an techsupport.
In that special case I'd check whether the client is still in the controllers client list as you move from one to the next location.
That would tell the authentication status and also which topology/role/... is used as the problem happen.
Also one of the first questions the GTAC will ask is the software version of your EWC to check for known bugs.

I look forward to hearing from you about the test result.

[Ryan_Reb]

I have now disabled the Inter-WLAN Service Roaming. I'll post again when I can confirm that it works. Thank you.

[Ryan_Reb]

Thank you for your reply. I will check the settings you suggested asap.

I'm just curious what required information I am missing in my initial description? I will try to include it in the future.

Thank you.