topic Re: Roaming Issues with Extreme Access Wireless - Dropouts in ExtremeWireless (Identifi)

Roaming Issues with Extreme Access Wireless - Dropouts

joshhunter — Mon, 12 Aug 2019 02:49:59 GMT

Hello, have a customer with 2x 5215 controllers setup in Fast Failover/Session Availability - so no Mobility is required. Roaming between Access Points causes quite a few ICMP Ping drops approx 4-5 and often can cause complete loss of wireless. When you manually try to connect to fails a number of times like the controller is rejecting the client, sometimes it connect but has no DHCP address.
Then after approx 30 seconds it will connect and have the same address as before.

This is a Layer 2 Roam so no Mobility is required the device keeps same IP Address.

This occurs on different devices including iPad Pro, iPhone and MacBook Pro and the devices are not panic scanning as the APs are in close enough proximity when this occurs.

This occurs on Open SSID but also on WPA2-PSK so no RADIUS issue.

The software is quite up to date. I configured NTP server on the Controllers as this was missing but still getting drops out and disconnects.

Any tips or does anyone else have any experience of this?

Re: Roaming Issues with Extreme Access Wireless - Dropouts

Doug — Mon, 12 Aug 2019 06:32:13 GMT

What code are you running, is it bridge at controller or access point?

Re: Roaming Issues with Extreme Access Wireless - Dropouts

joshhunter — Mon, 12 Aug 2019 06:55:59 GMT

10.51.04.0009 and Bridge at Controller

Re: Roaming Issues with Extreme Access Wireless - Dropouts

Matthew_Perry — Fri, 06 Sep 2019 21:58:01 GMT

Was this resolved? Sounds similar to an issue I'm seeing

Re: Roaming Issues with Extreme Access Wireless - Dropouts

Ronald_Dvorak — Fri, 06 Sep 2019 23:14:45 GMT

I'd try it with mobility just to see whether it has any affect, takes a minute to configure.

-Ron

Re: Roaming Issues with Extreme Access Wireless - Dropouts

Steve_Ballantyn — Mon, 09 Sep 2019 19:24:43 GMT

I have been in this same boat! I see that this was reported a month ago, but Matthew was also having issues. I would suggest opening a GTAC case if you haven't yet done that. There are some superstars on the support team that will pick up on things in your config that you may not have thought about.

Also, if you have never "tuned" your AP settings out of the box, you should know that a lot of the time the default settings are not the suggested settings.

See this article: https://gtacknowledge.extremenetworks.com/articles/Q_A/What-are-the-best-radio-settings-for-my-environment

There is a link in that article to an attached file ("Answer: Click to view file") which is VERY helpful in resolving weird roaming issues. I am refraining from linking the file directly, because it's often updated/repliaced and re-linked from the above KB article. 