AP connection problem

[PuyiZhang7814]

Why do I have so many errors about "Client entered wrong password."?

My computer was connected automatically and I made sure my password was correct.

[sid8tiveX]

I'm having the same error and ping drops on Windows 10 clients. I just updated to 27.1 and observing to see if it still happens.

Configuration:

MS120 > MR33 ----- MR33 > MS120 > MX65

[unifiedit1]

We are having the same issue and I'm seeing it with multiple customers, including our own APs. We have made Cisco recommended changes but it's only reduced the problem and not fixed it. It's obviously some kind of bug in the firmware that was introduced in more recent firmware revisions. Very disappointing.

[cate48]

On my test kit have today reverted from firmware 26.6.1 to previous 25.14 and the problem (repeated occurrences of "Client entered wrong password") has gone away.

So, dear Cisco, whatever is up with your firmware? And when can we expect a resolution? Because staying on old firmware, or living with this problem is not the answer 🙂

[alican1]

The problem still exists with MR 26.8 firmware.

I was running MR33 with MR 26.7 and upgraded to 26.8 hoping that it will fix the problem but no. It still exists.

Support is not helpful. I don't know what to do.

[unifiedit1]

Spoke with Cisco support on Friday. There is a bug that in the v26 firmware that is being worked. We had Cisco revert our APs back to firmware 25.14, which is the latest 25x firmware. That has fixed the problem. You will need to contact support to have them revert back and then peg each AP to that version until Cisco has a fix.

[cate48]

Thanks Robert that is a nice clear message.

[PuyiZhang7814]

Wasn't firmware version 25.14 deactivated?

My firmware version is 25.11

😂

[AlexanderEngman]

I have issues with 25.13 on MR42 and MR74.

I'm considering trying 26.8.

[alican1]

I asked support to downgrade my MR33 access points to 25.14. They work reliably now! No more authentication issue.

Thanks to @unifiedit1

[PawelG]

Very, very preliminary testing on 27.2 (released today): problem seems to be gone, but this is still much to small testing period to say something definite.

Br, Pawel.

[PawelG]

Wrong 🙂

It's still there in 27.2, just some time must have passed 🙂

I guess that Merki engineers are more busy with changing dashboard's rainbow logo for the 4th time that solving real bugs in their product...

br, Pawel.

[wayne.ranchuk]

Well that sucks I almost got excited

[AEPC]

Same probleme here! My APs are on MR 26.6.1. Could not solve the problem until now. It is certainly not due to a wrong password.

[Rasmus Hoffmann Birkelund]

Just trying to recap here.

The initial issue were clients connecting to the SSID were authenticating with incorrect PSK, even though PSK configuration has been verified mulitiple times.
The issues is seen across MR27.x and MR26.x, but not in MR25.x.
Also disabling 802.11r seems to fix it as well, also on MR27.x and MR26.x.

I was also seeing "Client entered wrong PSK" in the logs, but I'm not seeing it on MR27.2. I'm using WPA2/WPA3 Transition mode, with 802.11w enabled.

[McQuillenTech]

I am having the exact same issue on 26.6.1