topic WLC8540: Error in creating disabled client in Wireless

WLC8540: Error in creating disabled client

Som3a1992 — Mon, 05 Jul 2021 19:29:02 GMT

I'm trying to disable a specific client from accessing our wireless network, but there seems to be an issue in disabling that specific mac address. Not sure what's the issue. I can disable any other mac except that one. Tried using gui and cli, same issue. Could someone help me with this?

Re: WLC8540: Error in creating disabled client

Som3a1992 — Sun, 06 Sep 2020 10:30:15 GMT

Re: WLC8540: Error in creating disabled client

Leo Laohoo — Sun, 06 Sep 2020 11:10:42 GMT

What firmware is the WLC running on?

Re: WLC8540: Error in creating disabled client

Som3a1992 — Sun, 06 Sep 2020 11:14:26 GMT

Software Version 8.5.140.0

Re: WLC8540: Error in creating disabled client

Leo Laohoo — Sun, 06 Sep 2020 11:29:20 GMT

What is the MAC address you are trying to disable/block?

Re: WLC8540: Error in creating disabled client

Som3a1992 — Sun, 06 Sep 2020 11:33:42 GMT

44:6D:57:C6:FA:C1

Re: WLC8540: Error in creating disabled client

Leo Laohoo — Sun, 06 Sep 2020 11:42:10 GMT

How are you entering the MAC address? GUI or CLI?
What is the exact error message?

Can you try entering in lower case?

Re: WLC8540: Error in creating disabled client

Som3a1992 — Sun, 06 Sep 2020 12:16:28 GMT

Tried using GUI and CLI. Also tried in lower case.

This is the error message https://imgur.com/a/2g6B8ty

Re: WLC8540: Error in creating disabled client

Leo Laohoo — Sun, 06 Sep 2020 12:40:53 GMT

This MAC address is not present in the Exclusion List, right?

How many MAC addresses are presently in the Exclusion List already?

Re: WLC8540: Error in creating disabled client

Som3a1992 — Mon, 07 Sep 2020 07:03:34 GMT

Yea, the mac address it not in the exclusion list. And there are 17 MAC addresses present in the exclusion list.

Re: WLC8540: Error in creating disabled client

Leo Laohoo — Thu, 17 Sep 2020 11:49:30 GMT

What is the result if you enter the following command:

config exclusionlist add 44:6D:57:C6:FA:C1 "BLAH"

Re: WLC8540: Error in creating disabled client

nuhnetworks — Tue, 15 Mar 2022 13:27:26 GMT

I am also having this issue and when I enter the following:

(C-xxxx-WLC-01) >config exclusionlist add 00:15:af:1f:b0:a8 "botnet"

I get:

Unable to add MAC entry to database.

Re: WLC8540: Error in creating disabled client

Scott Fella — Tue, 15 Mar 2022 14:47:26 GMT

Have you tried from the GUI also and are you able to add any other MAC address just to make sure you can?

Re: WLC8540: Error in creating disabled client

nuhnetworks — Wed, 16 Mar 2022 12:01:50 GMT

Thanks Scott, I tried another MAC address and that was accepted, so I've figured that because the MAC address was connecting to an SSID that had no security policy applied (open connection to a 3rd party public hotspot) I am unable to disable based on MAC address.

Re: WLC8540: Error in creating disabled client

Scott Fella — Wed, 16 Mar 2022 14:39:49 GMT

I don't know about that.... any mac address as long as its not a mac address of the controller should work. I tried the command line you posted on mine and it works.

config exclusionlist add 00:15:af:1f:b0:a8 "botnet"

Re: WLC8540: Error in creating disabled client

AntonChychkan6805 — Thu, 02 Jun 2022 12:35:24 GMT

Hi,
had same problem, appeared that mac address was previously added to MAC Filter list. After removing from MAC Filter list I was able to disable that mac.