ZenWiFi Pro ET12 - Settings don't stick

[WebMaximus]

I have a pair of ZenWiFi Pro ET12 routers where one is working as the router with an Ethernet connection to the Internet and the other one, acting as a node. Recently, I've been having problems making changes I do to the configuration stick.

For instance, when trying to rename a device on the network, after changing the name of the device via the General-AIMesh menu and pressing the Apply button, the name immediately reverts back to the original name. I've also seen the same thing when trying to add/remove devices to/from the WiFi Blacklist and same thing for adding and removing devices to/from the Manually Assigned IP around the DHCP list. Same thing regardless if I'm using the web interface via my Windows 11 PC or the Android app.

I've managed to make it work a couple of times by performing a System Reboot. On a few occasions though when doing a system reboot, I ended up with the router being in 'Ready to be setup' mode where it for whatever reason lost the name of the WiFi and the password. Where I had to put these in again in order for devices being able to reconnect.

Back in 2022 when I bought the pair of routers, I never saw any of these issues. So not really sure what happened and why. Both devices are on firmware version  3.0.0.4.388_24610-gd86af63.

Thinking if doing a complete factory reset would solve the issue or do you guys have any other ideas?

It's truly annoying because part from this, this AIMesh setup with one device working as a router and the other one as a node works really well in providing great WiFi speeds for all devices connected.

With many thanks in advance for your advice and help!

[WebMaximus]

Looks like I was a bit too fast saying it's now working correctly.

I was able to bind a specific IP address to one of the clients on my network which is the most important one to me. So all good there. However, when just going through all the settings and playing around a bit, I thought I would try the firewall feature where you can block any URL:s containing a specific set of characters.

In this case, I tried to put in 'avsim' as seen below. After entering the characters and clicking on the plus icon to the right to have it added to the list, it does end up there. However, when pressing the Apply button, I see the message with a percentage showing the progress to save and activate the change. However, as soon as it reached 100%, the entry is no longer to be seen in the list.

This is the very same behavior I noticed before doing the factory reset. Only not for this setting/feature but in that case binding a specific IP to a specific client or adding/removing clients from the WiFi blacklist.

Here are some screenshots to illustrate what I saw tonight testing this and notice how the entry is still seen behind the applying settings message. Then once it's finished, the entry is gone.