Skip to main content

Posts

Featured

Cisco 2106 and LAP1142 wierdness.

Setting up a real Wireless network for a charity I decided to leverage the used Cisco gear out there.  I got a nice 2106 WLC and a few LAP1142's for cheap that will serve them nicely.    Get everything installed and the AP never ever shows up.   so I take one down,  connect the serial cable and power it on the network.   It starts complaining about expired keys.   All kinds of searching the Cisco forums and there is no answer except for the default "your time is wrong" comment that is actually useless because LAP's and a WLC don't care what time it is.

So I dig for a few hours and discover that Cisco had a bug in their firmware.  The certs they bake in are only 10 years of life and will self explode to encourage people to replace gear.   Thanks, cisco.   The problem is you can't just set the time back if someone EVER updated the WLC it freaks out about the LAP's certs.

I found an answer.
in the WLC console enter the following command.
config ap lifetime-c…

Latest Posts

Arduino ESP8266 UDP communication that makes sense

TLDR: LED headlight bulbs are all garbage.

Creality Ender 3 3d printer: a neat idea with a couple of major flaws.

Updating firmware on a Tascam DP-32SD or DP-24SD

Best Open source home Automation system out there.

JOYING double din android 6 Car stereo... is it worth it?

Review: QRP Ranger 100WH power system from Hardened Power Systems

Why open source home automation sucks.

The Intel Compute Stick... The little PC that Wasn't.

Zwave and how it's a Mess - Leviton and not following standards.