one of our customers wants to update the firmware of a 5508 wlc, but always gets the following error message:
Error Message %UPDATE-3-INV_FILE_SIGN: Error! Invalid image signature!. Image may be corrupt.
but the same image works fine on another 5508.
any ideas? the update was downloaded via a smartnet for the wlc, on which the update works fine. does the customer has to download another image for the second controller, or should the image work on both wlc?
Transferring Crash file from standby: Login to the Active WLC in HA.
From CLI: (Cisco Controller) >transfer upload datatype crash (Cisco
Controller) >transfer upload filename (Cisco
Controller) >transfer upload mode tftp (Cisco Controller) >transfer
This is the start of a display filter cross reference between Wireshark
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filters will be added as time allows. It is a living doc, so check back
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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. Prerequisites: Powershell SNMP Module
(Install-Module -Name SNMP) SNMP Write Access to y...