23.05.0 Update breaks WAN - RT-AX53U/1800U

[Filu]

Same issue as I tried once with latest release for 22.03.5-rc4
It seems that issue comes back with every update.
I got back to Stable 22.03.5 release again.

[Michael.Uray]

I can confim, I noticed the same WAN interface problems with version 23.05.0.
No problems with 22.03.5.

This is the original post which the OP is referring to, but it got automatically closed:

ASUS RT-AX1800U (AX53U) WAN port issue on SNAPSHOT, Wireless Tab Missing on 22.03.5

Hi, I recently bought ASUS RT-AX1800U (AX53U), which seemed to be perfect for batman-adv mesh network. So I made image through OpenWRT Firmware Selector with not to much changes ( 22.03.5 ). wpad-basic-wolfssl changed to wpad-basic-openssl, luci, luci-ssl, batman-adv. After flashing image into device it works fine and all... But Wireless "Tab/Option" is missing. I tried to find help here on forum, but there was no resolution. Can't upgrade packages too, for some reason. [screenshot1] Als…

[r7eyes]

Anyone know if 23.05.2 fixed this? I don't see any mention of it on the changelog

[eFfeM]

I don't know exactly what the original issue was but I just installed a virgin RT-AX1800U with OpenWrt 23.05.2.
Under network I have a Wireless page. It shows me the radios and a list of associated stations.

I picked up the image from https://downloads.openwrt.org/releases/23.05.2/targets/ramips/mt7621/ (the wiki page of the device still lists 23.05.0 as the latest version)

Note that I did not modify the image in any way. I just flashed the factory image using mtd-write on my new AX1800U

[r7eyes]

Does the WAN port work? That's what the wiki page said was broken.

[eFfeM]

Does the WAN port work? That's what the wiki page said was broken.

Yes it does. I connected the router through the wan port and connected my phone to the wireless. The phone gets the connection and can use it.
I also connected my laptop to the lan port and the laptop also gets an active internet connection. Actually that is what I am using to type this.

Note that I used the factory image as provided. I did not use the firmware selector or so

[Mccg]

I am also using it as a fiber modem. Can I switch from version 22.03.5 to version 23.05.2 smoothly, Is Wi-Fi problem solved?

[x-daemon]

yesterday, after I upgraded it to 23.05.2, the internet stopped working. then I downgraded to 22.03.5 and it worked again. I use pppoe:
pppd[3325]: Remote message: Too many sessions^J
pppd[3325]: PAP authentication failed
pppd[3325]: Connection terminated.

[r7eyes]

After flashing 23.05.2, the WAN port and Wifi tab seems to be both working fine on my device.

However, the network performance is horrendous for some reason. I can barely get 150Mbps down on my 500Mbps connection with speedtest.net, and only ~350Mbps on local gigabit crossing VLANs using iperf3. Even when I reset the settings and configured it as a dumb AP/switch connected to a Rpi4 router, I still get similar degraded speeds for the local connection.

Downgrading to 22.03.5 doesn't have these issues, at least as a dumb AP/switch. Getting ~450Mbps with WAN and ~950Mbps on local gigabit across VLANs, so I guess I'll stay on 22.03.5 for this device.