04-21-2017 11:15 AM - edited 07-05-2021 06:54 AM
So trying to isolate this and it's driving me nuts ... recent deployment replacing WisM's with 8540's and new 3800 AP's (around 300). and I have both model phones between the 7925/8821 and when standing right below an AP my RSSI is between 30-80, and when going around the corner it sits at 80 and 1 bar/no bars on signal .. yet my person phone on the same 5Ghz band is fine and shows good signal ...
WLAN:
a- Band only
QoS - Platinum with WMM policy allowed
Coverage Hole/Aironet IE Enabled
DTIM Period - both set to 2.
802.11a:
Beacon period: 100
Fragmentation Threshold: 2346
DTPC Support: enabled
6-9 disabled
12-Mandatory
18-supported
24-Mandatory
36-54 disabled
CCX Enabled (60)
TPC:
MAX: 17
Min: 11
Threshold: -70
DCA: 1 hour timing
Avoid Foreign AP interference: enabled
Avoid non-802.11a noise: enabled
DCA Channel Sensitivity: low
Channel Width: 20
DCA Channels: 36, 40, 44, 48, 149, 153, 157, 161
EDRRM: enabled
Sensitivity Threshold: low
Coverage:
Voice RSSI: changed to -72
EDCA Profile: Voice Optimized
DFS: 0 and no options selected
802.11n/ac: unchecked and MCS rates all checked
-------------------------------
I've been through multiple guides and tweaking back and forth but still signal is an issue in weird area's.
04-21-2017 04:47 PM
The 7925G, if loaded with the correct firmware, is a mature system. The software is mature and it could roam (compared to older firmware) very well.
The 8821 and, if I was to be diplomatic about it, still a "work in progress". There are known issues about the way the 8821 "roams".
04-21-2017 05:52 PM
The 8821 had a firmware update (SR2) released Thursday.
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