FWIW I experience the same issue, but with a different setup.
- HAOS 2023.11.3 on a Raspberry Pi 4 host
- Funnily enough I am actively working on migrating to a Proxmox cluster
- NetGate 6100 router/firewall
- Avahi plug-in installed
- mDNS is enabled on pfSense
- Followed instructions from this thread to do that: Thread/Matter, Router Rules, and Firewalls
- However things randomly worked before putting these changes in place too!
- Using SkyConnect for Zigbee and as my only Thread border router
- Few different subnets, HAOS on the management VLAN
- Have IPv6 enabled internally, but this also all worked a few times without it
- TP-Link Omada setup pretty much across the board (minus the Netgate obviously)
- Don’t take this as an endorsement. The first company to deliver a large 2.5G managed switch with better software will take my money and these will go on sale!
I see the same CHIP Error 0x00000032 timeouts in my logs when pairing fails. But I do not have as much luck getting it to pair just by giving things a reboot.
It often fails once it gets to the internet connectivity test, but I have had it get past that and onto the pairing with Home Assistant step and fail. No useful information on the screen, just “something went wrong”.