@David-TP 

Thank you for your responce David.

When enabling both 2.4/5 guest network and 6ghz guest network. The unknown ssid is gone.

When I disable either the 2.4/5 , the 6 or both guest networks again. The unknown ssid comes back.

It is also password protected. None of my known passwords work on it.

Greetings

  @David-TP 

Thank you for your help David!

this issue is forwarded via mail to support.forum@tp-link.com

When issue is resolved I can post the fix here for future reference to anyone who might experience the same.

Greetings

I'm having this same issue. Have you found a solution? 

  @Nick682 

Hi Nick.

Ticket is open at TP-link support desk.

still waiting on anwsers.

its prob. been busy during the holidays. so I expect an anwser this week.

greetings

  @Warpy Just throwing my hat into the ring. Experiancing same odd SSID on 6e. Ver 1.2.7

  @Warpy yes, I have seen this unusual SSID on the XE75, it also appears on the BE85 in the same way as described here.

And the question still hasn't been answered as to what it is since it's clearly the firmware doing this deliberately.

So is it the case that engineering doesn't know what this is?

Perhaps Qualcomm can answer the question then!

  @Warpy 

an update on the matter.

I am sorry but I chickened out.

And I will not be persuing this issue further.

I will however check if the above email is legit.

what happened:

I got in contact with the support email mentioned above.

an TP-Link engineer from china contacted me to set up a remote access appointment.

This via teamviewer (first red flag) and requesting the use of putty, which is a ssh tool (quite unsafe so second red flag)

my phishing senses were tingeling but hey I can be wrong and this forum and the e-mail seemed very legit so it must be my imagination.

I did some research and found on the TP-Link website, they dont do remote sessions and only do remote session is extreme cases. (third red flag)

when the remote session was going on he wanted to install debug firmware on my deco. (forth red flag)

I found this very odd and all of my internal phishing alarm guts were screaming. so I started to google around for any phishing/hacking around TP-Link.

found out last year a chinese hackergroup was distibuting bad firmware around the EU. (fifth red flag) so I decided to pull the plug on the remote session.

I re installed the original firmware and did a factory reset.

I am sorry to all who are waiting on a sollution and to all TP-Link personel who were helping me if this was indeed legit.

however, in today's world where phishing, social engineering and hacking are so prevelant, I felt extremely unsafe in this interaction.

I rather live with this extra ssid than having a risk of a network compromise.

I will be going trough the official TP-Link support page to verify if my interaction was legit.

greetings.

  @Warpy I have to say you are being sensible and I agree with you, there is definitely something wrong with the request made of you.

Fact is the foregoing conversation is clear evidence the problem is easy to duplicate so there is no need to intrude on customer networks.

It is possible the person is ligimitate and is simply barely competent!