Handheld scanner wireless issues

[Daniel_Starosci]

We have an issue which we cannot seem to figure out. We recently upgraded our AP's to 7522's in all of our buildings (370+ AP's). Users are complaining that their handhelds keep dropping their connection (mainframe and RDP). Whats interesting is that users say that it was better on the older 650's we had in place before the upgrade. We have had site surveys done in several of our buildings and added AP's where recommended.

Inventory SSID is WPA2-CCMP
Using smart-rf policay
g-rates disabled

Any idea on what to look at next?

Thanks

[ckelly]

Any particular reason you are tunneling the WLANs back to the controller? (More just curious about this)

The SmartRF policy looks pretty basic.
Do the affected devices use only 2.4GHz or only 5GHz or both?

As Robert asked, a SmartRF Report might be revealing.
Really wondering what power level the APs are being set at by SmartRF....

[Daniel_Starosci]

there are only several places where they are mounted that high. The majority are much lower than that.

Here is some info:

wlan INVENTORY1 description Data Collection Device (HH) SSID
ssid INVENTORY1
vlan-pool-member 109
vlan-pool-member 110
vlan-pool-member 111
bridging-mode tunnel
encryption-type ccmp
authentication-type none
fast-bss-transition
802.11v bss-transition
wpa-wpa2 psk 0 xxxxxxxxxxxxx
wpa-wpa2 handshake timeout 800
wpa-wpa2 handshake attempts 3
wpa-wpa2 handshake priority normal
use ip-access-list out BROADCAST-MULTICAST-CONTROL
use mac-access-list out PERMIT-ARP-AND-IPv4
shutdown on-unadoption
controller-assisted-mobility

smart-rf-policy
assignable-power 5GHz min 14
assignable-power 2.4GHz max 20
assignable-power 2.4GHz min 11
channel-list 5GHz 36,40,44,48,149,153,157,161

[RobertZ]

Does the problem happen in a particular area, at a particular time or throughout the site?

[Daniel_Starosci]

It happens throughout the site. Different buildings and different rf-domains.

[ckelly]

75xx series APs with internal antennas have a very good track history in warehouses. The highest I've heard of them being mounted is about 40ft though. 50 foot mountings is really going to be pushing it.

Seeing that you statically channel/power mapped the 650's, I'd really be interested in hearing how they were configured. Do those 650 'objects' still exist on the NX9610 or were they deleted?

Can you post your current SmartRF policy that is being used? Wondering if maybe the radio power on the 650's was set higher than what the SmartRF policy's max value allows for....