we have a bunch of APs (c1140, c1240, 1600, 3500) joined to a vWLC 7.5.102. It was a pain to bring them there from a 7.0 WiSM (we have no other physical controller so we had to do an "archive download" of 7.5-ible recovery software to each of them), plus we are experiencing many issues with 7.5 (clients suddenly drop, clients cannot connect anymore, and so on...). During a MTE at the recent CLEUR the Cisco Engineer suggested to move to 7.6. I don't want to upgrade my production vWLC from 7.5 to 7.6 as I have PI 2.0... would like to test it first and see what I lose with the "7.6 not supported on PI2.0" infamous problem. So i took my second vWLC 7.5, licensed and all but without any APs registered to it, upgraded it to 7.6 and tried to move a c1140 and later a 1600 to it.
Sadly, I wasn't successful at all:
*Feb 9 15:05:49.871: %CAPWAP-3-ERRORLOG: Go join a capwap controller
v7.4 is the main code beside v7.0 which is the stable version in the v7.x train. The issue with v7.0 is the support for newer hardware requirements. v7.4 is the code to be on and if you require features, v7.6. v7.3 and v7.5 will be deferred soon so just understand that. You should be able to downgrade/upgrade without having to change any of the licensing in the vWLC. Why your having bad luck with it, I don't know. Downgrade your test vWLC to v126.96.36.199 and see how it goes.
I have achieved some degree of success now erasing the private configs on the APs and they happily joined to vWLC02 (the one with 7.6); I then downgraded vWLC02 to 7.4.121 as suggested to test it for at least a week before downgrading vWLC01 (the one with 7.5) to 7.4 too.
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.
The 1st installment is a table of advanced filters. More filters will be added as time allows.
It is a living doc, so check back for changes every so often
Please feel ...
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...