We have AP's that broadcast multiple SSIDs. In one specific area of the building, we have noticed the signal strengths are not the same for different WLANs/SSIDs. For example, a WLAN with SSID "Public WiFi" may have very poor signal strenth while SSID "Private" may have excellent strength... from the same AP. To add to the mix, it appears that different wireless chipsets/drivers see conflicting results.
Re: Multiple WLANs/SSIDs, Different Signal Strengths
How is signal strength being measured on the client?
I have seen the same thing you report on Windows XP in the "show available wireless networks" with the reported signal strength bars showing different levels for two SSIDs from the same AP.
However, I noticed that the bars would re-adjust when the client was actively associated with the SSID. In my case, an SSID with 5 bars would suddenly reduce to 3 bars when associated. It pops back to 5 bars when not associated.
Checking the levels using netstumbler on the same laptop showed that both SSIDs were being seen by the client radio at approx the same power level, as you'd expect.
A Cognio spectrum analyzer on a separate laptop also confirmed the both SSIDs from the same AP were being seen at the same level at that location and that there was no signal interference other than the usual 802.11 activity on other channels.
Transferring Crash file from standby:
Login to the Active WLC in HA.
(Cisco Controller) >transfer upload datatype crash
(Cisco Controller) >transfer upload filename <Desired filename>
(Cisco Controller) >transfer up...
This is the start of a display filter cross reference between Wireshark and OmniPeek.
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I have created a Powershell script to automatically add a Wireless Guest User on Cisco WLCs. (tested on 2500 Series)
The script should be completely self explanatory.
Powershell SNMP Module (Install-Module -Name SNMP)
SNMP Write Access to...