Remove EWC image from AP

[SondreSandberg]

I want to convert a previous EWC AP back to lightweight.

I've done ap-type capwap, but show version still tells me the AP is EWC capable. Does anyone know how I can make the AP lightweight mode only?

AP Running Image : 17.3.4.154
Primary Boot Image : 17.3.4.154
Backup Boot Image : 17.3.4.154
AP Image type : EWC-AP IMAGE
AP Configuration : EWC-AP CAPABLE

[Scott Fella]

It doesn't matter... if the ap can reach and join a controller, it will join the controller.  Have the ap join a controller and then look at the files.

[Flavio Miranda]

Hi

  You did it right, according to cisco doc.

https://www.cisco.com/c/en/us/support/docs/wireless/embedded-wireless-controller-on-catalyst-access-points/215303-embedded-wireless-controller-conversion.html#anc18 

However, they dont mention that this information will desapear or that it can´t be shown anymore.  Why are you worring about this

[SondreSandberg]

Cause I don't want to put this AP in an production enviroment risking it becomes EWC and broadcasts on the LAN, taking other lightweight AP's to it.

[Scott Fella · Accepted solution]

It will not.... take a look at the requirements for EWC.  It states that an EWC should not be able to join a controller or else it will not become and EWC and will join an existing capwap environment.  

ap-type capwap is the command you need to tell the ap that it should be capwap.

[Scott Fella]

Re-read the conversion process.

Embedded Wireless Controller Conversion on Catalyst 9100 Access Points - Cisco

Important: The EWC process of the AP will never boot if there is an existing AireOS, 9800 or Mobility Express or EWC controller in the same broadcast domain (VLAN).

[Rich R]

But if the WLC is not in the same broadcast domain then there is that risk still.

Remember ap-type capwap must be entered on the AP console not the EWC WLC - did you do that?

In the link @Scott Fella provided above refer to the previous paragraph "Accessing AP Console From EWC" to make sure you're accessing the AP not the EWC WLC.

[SondreSandberg]

That was my solution in the end.
Asked TAC and there is actually no way to remove the EWC image after installing it on a 91** AP.