Did you upgrade from 21.02.3 to 22.03.0-rc1 and kept the configuration, or did you configure everything from scratch? The unstable snapshot is, you know, an unstable snapshot and there could be issues with converting settings.
You could run firstboot and try to configure from scratch as first test (make a backup of /etc first*)
*) On squashfs based routers I routinely save all of /overlay before making an update, which nicely gives me all modified/post installed packets, allowing to recreate the pre-update situation by installing the old sysupgrade image and copying in the contents of the saved /overlay back onto the router, but on x86 I assume you use a "real" filesystem and hence this will not work ;(
well haha ok yeah I tried but for some reason on x86 "firstboot" does not work for me.
when using x86-64-generic-ext4-combined-efi.img I think I need to use squashfs ? or root idk.
I get error MTD partition 'rootfs_data' not found when I say yes and it does nothing after that.
Anyways I finally figured it out after a few hours. was my firewall.conf
when I go under the Firewall option from luci.
/luci/admin/network/firewall then Zones
Zone ⇒ Forwardings (click on edit zones)
IPv4 + IPv6 for both under "Adv settings" for Restrict to address family
I personally don't use IPv6 and always both those options set to "IPv4 Only"
I'm not even running IPv6 on this router I have everything IPv6 related disabled.
I should just compile my own wrt iso via sdk and untick ipv6 for when I do fw upgrades.
Sorry my error, fastboot/firstboot also only works with a read-only primary partition, not sure what I was thinking....
This is going to get more and more problematic in the future, for a) IPv6 is becoming more prominent in the wild, and b) more importantly some OpenWrt core developers voiced their goal to stop special casing IPv6 and simply assume IPv6 to be there (mind you on the LAN, OpenWrt still intends to work just fine with IPv4 internet access). But that does not mean IPv4 only is going to be impossible, just that it is not going to get easier...