I just tried an attended sysupgrade from 22.03.5 to 23.05.0, which resulted in 5GHz wifi not working. I guess its due to a driver not being installed. I'm still searching what I need to install.
Fixed it. Installed opgk update ; opkg kmod-mt7915-firmware and replaced the "path" setting in /etc/config/wireless by phy wl0 and phy wl1.
I obviously have not much experience since I installed 23.05.0 just a couple of minutes ago, but at first glance the box is running at leasts as much as I need it for being able to fiddle around with it.
Upgraded RT3200 from 22.03.5 to 23.05.0 using Luci upgrade through browser and everything worked with existing config. My network setup includes 2 AX networks (AP mode, 80MHz, ch36, 20dBm - 100mW, disabled IPv6, SAE-mixed, 2 fixed MAC addresses, beamforming, and BSS coloring). Software and hardware offload as well as packet steering are on.
I maintain a minimal setup to ensure stability. After the upgrade, I re-flashed 23.05.0, and it worked as expected. Tested with Android devices, iPad, and another OpenWRT router.
Just had exactly same situation - after using auc to upgrade from 22.03.05 to 23.05.0 over web - I had no 5GHz WiFi. Had to install kmod-mt7915-firmware and reboot. After reboot, all seem as it was previously.
I would not advice using attended sysupgrade for a major version upgrades. As in your case, some packages were missing. You also don't know, what other important packages might be missing.
Better upgrade the normal way with sysupgrade, check keep data and then just install the packages you need to get your functionality back. All their configs are kept.
I have been running 23.05.0-rc4 for a while and just upgraded to 23.05.0. No WED, no 160 MHz channel, here
I did almost the same, but used firmware selector and added my additional packages there (ddns, speedtestpp, nano, and others), then I updated using sysupgrade.
Everything's working fine on 23.05.0.
I do have a question that's probably answered somewhere: is there a way to edit the model name to reflect Belkin RT3200 instead of E8450? I know it's cosmetic, but at least it should appear as Linksys E8450/Belkin RT3200 (UBI) in the overview page.
Don't know, I just rebooted the router from the System menu and the router won't come up, I had to power it off and turn it on again using the switch on the back.
As soon as I changed the governor, it rebooted properly. The same happened to me on 22.03 when I got this router and followed the Wiki by manually putting ondemand as the governor. When changed to schedutil, it rebooted fine. Eventually I removed the governor line and still worked fine. But now on 23.05 the problem appeared again.