Elevated SM will not connect to AP in 4.4.3, even when SM is upgraded to 4.4.3

Products ePMP
#1

I'm trying to upgrade our network to the latest firmware. I did a test on an AP with 20 clients. About half are elevated. I have 2 SMs that upgraded to 4.4.3 with little problem, except the GUI load time takes forever. But when I upgrade the AP to 4.4.3 from 3.5.6, they will not connect. When I downgrade the AP back to 3.5.6 they connect again. Its not interference, both antennas signal are -50. 

Any idea what would cause this?

#2

Hi,

If you run 40MHz and have XM devices please switch guard interval on the RF settings page to Long. Otherwise we need more details to figure this out. 

Thnaks,

Dmitry

#3

No, running at 10mhz. 

How much details do you need? We have all the same settings in both firmware versions. 

#4

Ideally we need tech support dump from both AP and elevated device both running 4.5. It will be great if you can share it via the support case.

Thanks,

Dmitry