To preface, I understand why this is happening, but it took me a bit to figure out why I was losing access to OpenWRT for something as simple as changing the LAN IP of the router. Hoping to make a change to save others in the future confusion.
Problem: In case you didn't know OpenWrt 25.12 and later uses CIDR so if you attempt to change the default 192.168.1.1/24 IP to 192.168.2.1 in LuCI for example (without CIDR), you will lose access. After 30 seconds it will fail back to the previous config. You can choose to "Apply Unchecked", but will lose access to web interface permanently.
The correct format would be 192.168.2.1/24 for my intended use. Am I just dense or is it worth putting something like the blue ? at the bottom of the image to explain this?
Again hoping to make a change to save others in the future confusion. If everyone else knew this already, feel free to close this topic because I also won't forget this after struggling for longer than I should.
