@Bertram 

Hi, sorry to hear that you have trouble with our product.

Sorry to make you wait for so long for the reply.

For your issue, I would like to confirm some information.

From the status you provided, we can see the AP has the Wi-Fi name XD58, which is very clear.

But from the second picture you provided, I can see the first Wi-Fi name XD58 shown on the top. 

This Wi-Fi doesn't belong to this Access Point? Does it belong to other Access Points since you have more than one APs?

Do all these APs share the same Wi-Fi name XD38?

If so, you can change the Wi-Fi name to a totally different one for this AP to check if the new Wi-Fi name can appear on all of your devices.

The default Wi-Fi name of this Access Points is printed on the white label which is on the back of the device.

You can check if the Wi-Fi name (TP-LINK_AP_xxxx) is the same as the default one or not.

Please try to refresh the Wi-Fi list on your device to check if the default Wi-Fi name still appears.

Please also try to use different clients to do a test if the new Wi-Fi name XD58 and default Wi-Fi name can appear.

Your reply would be much appreciated.

Have a nice day!