Thank you for your patience with "simple" questions.
I have now learned a lot about OpenWrt, VLANs, WLANs, etc. over the last few days.
Now I have another question or problem that I do not understand. I don't know it is due to the firmware of WAX206. The fact is it works with WAX202 device.
I have a WAX202 as "router" and 2x WAX206 as access points on other floors. Both WAX206 are "Dump APs". I provide the same WLAN (4x) there as on WAX202.
I have 4 smartphones to test WLAN.
WLAN with WAX202 works with all smartphones in 2.4MHz as well as in 5MHz network.
Here is the problem I was able to isolate:
On one smartphone (Google Pixel 5) there is a problem with one WLAN. This WLAN works only correct in 2,4MHZ about the WAX206. With the 5MHz the connection to WLAN works but then the message appears on the smartphone that WLAN is connected but there is no Internet connection, which is a fact, there is no internet available.
But with an other WLAN on the WAX206 both 2,4MHz and 5MHz works for the Pixel 5.
I have now very often compared the "device", "interface", "wlan" configuration between WAX202 and WAX206 and have found no difference between the 5MHz configuration on the WAX202 and the WAX206.
I also compared the WLANs on WAX206. One works in 2.4MHz/5MHz, the other only has Internet access in 2.4MHz.
In the 2.4MHz settings I noticed that I can't select "AX" on the WAX206, but this is possible on the WAX202. But anyway with 2.4MHz I have no problem.
Does anyone have an idea what my problem is? Could a firmware update help here? Otherwise, I would of course like to open an extra topic.
I've found out that I don't think Internet access is possible on the WAX206 on this one WLAN with the Pixel 5. Neither 2.4Mhz or 5MHz, I'm confused.
I the meanwhile think the Pixel 5 might have a problem.
I tested 4 smartphones, 2x Pixel 6, 1x OnePlus 6 and 1x Pixel 5.
All devices except Pixel 5 will work on all WAX206 wireless networks. The Pixel 5 only works reliably on WAX202, on WAX206 there is the problem described. A connection to the WLANs is established but without Internet access.
Here are my config files from WAX206. I will also add at the end the config from my WAX202.
One question: when connecting to SSID "Smart" - you have no internet on 5ghz, 2,4ghz or both?
If it's on both - maybe something is wrong with DNS? Pixel is trying to ping some google servers to check if you have Internet access, if name is not resolving (or address/IP is blocked) - it may result in "no internet".
I test again and it will not works in both 2,4 and 5. But for the WiFi called "WLAN" it works with same configuration as you can see in my config files.
DNS is a good indication but e.g. with the Pixel 6 it works and also with the WiFi WLAN where everything is set the same except for a different IP range. It's just weird.
Unbelievable, I found the failure.
As you may have seen in the config I have define VLANs.
On the APs I did a failure on VLAN44 (Smart).
As you can see above in my shared config, all WiFi's have a "2" as IP at the end except the Smart, which has a "1".
But the "1" address at the end is the one where is already entered on the interface at the router.
With all other VLANs I had done this "correctly", except for Smart.
After I had entered 192.168.3.2 and 192.168.3.3 for the AP's, it works that the Pixel 5 can connect into the WiFi "Smart" and also has Internet. Everything is fine now
However, it is strange that "only" the Pixel 5 had a problem with this and the Pixel 6 and the OnePlus device did not.
Thank you for your help and time on this topic.
So I've solved almost all problems now ....
Which is also funny..., I still have an issue with the Pixel 5.
The WiFi "Skynet" has access to "Smart" WiFi.
Inside Smart are a couple of Smart Speakers.
If you are in Spotify on the WiFi Skynet, you can connect to all speakers from all smartphones except Pixel 5
One Speaker is still missing wiht Pixel 5 from WiFi Skynet. This speaker is only visible to the Pixel 5 when it is also in WiFi Smart
But maybe the Pixel 5 just has a problem. It also takes a long time to connect to a better WiFi signal, often it doesn't do it at all.