Trouble implementing Matter in HA

Configuration Matter/Thread
1

Hi, i wanted to add Matter to my HA (Raspy 4). My Thread Border Router (Zigbee Dongle) ist reachable and IPV6 is working. Somehow there is some trouble inside the logs of Matter. I already tried to reinstall Thread and Matter, nothign worked. Any Ideas how to fix it?
Logs:

s6-rc: info: service banner successfully started
s6-rc: info: service matter-server: starting
s6-rc: info: service matter-server successfully started
s6-rc: info: service legacy-services: starting
[17:53:49] INFO: Starting Matter Server...
s6-rc: info: service legacy-services successfully started
[17:53:51] INFO: Using Python Matter Server
[17:53:53] INFO: Using 'end0' as primary network interface.
[17:53:54] INFO: Successfully send discovery information to Home Assistant.
2026-03-19 17:54:05.834 (MainThread) INFO [matter_server.server.stack] Initializing CHIP/Matter Logging...
2026-03-19 17:54:05.835 (MainThread) INFO [matter_server.server.stack] Initializing CHIP/Matter Controller Stack...
[1773939247.298556][118:118] CHIP:CTL: Setting attestation nonce to random value
[1773939247.348374][118:118] CHIP:CTL: Setting CSR nonce to random value
[1773939247.518667][118:118] CHIP:DL: ChipLinuxStorage::Init: Using KVS config file: /tmp/chip_kvs
[1773939247.552283][118:118] CHIP:DL: Wrote settings to /tmp/chip_kvs
[1773939247.552876][118:118] CHIP:DL: ChipLinuxStorage::Init: Using KVS config file: /data/chip_factory.ini
[1773939247.601133][118:118] CHIP:DL: ChipLinuxStorage::Init: Using KVS config file: /data/chip_config.ini
[1773939247.611232][118:118] CHIP:DL: ChipLinuxStorage::Init: Using KVS config file: /data/chip_counters.ini
[1773939247.661041][118:118] CHIP:DL: Wrote settings to /data/chip_counters.ini
[1773939247.661109][118:118] CHIP:DL: NVS set: chip-counters/reboot-count = 2 (0x2)
[1773939247.661909][118:118] CHIP:DL: Got Ethernet interface: end0
[1773939247.662360][118:118] CHIP:DL: Found the primary Ethernet interface:end0
[1773939247.662950][118:118] CHIP:DL: Got WiFi interface: wlan0
[1773939247.663004][118:118] CHIP:DL: Failed to reset WiFi statistic counts
[1773939247.663017][118:118] CHIP:PAF: WiFiPAF: WiFiPAFLayer::Init()
2026-03-19 17:54:07.663 (MainThread) INFO [chip.storage] Initializing persistent storage from file: /data/chip.json
2026-03-19 17:54:07.664 (MainThread) INFO [chip.storage] Loading configuration from /data/chip.json...
2026-03-19 17:54:08.037 (MainThread) INFO [chip.CertificateAuthority] Loading certificate authorities from storage...
2026-03-19 17:54:08.037 (MainThread) INFO [chip.CertificateAuthority] New CertificateAuthority at index 1
2026-03-19 17:54:08.058 (MainThread) INFO [chip.CertificateAuthority] Loading fabric admins from storage...
2026-03-19 17:54:08.058 (MainThread) INFO [chip.FabricAdmin] New FabricAdmin: FabricId: 0x0000000000000002, VendorId = 0x134B
2026-03-19 17:54:08.059 (MainThread) INFO [matter_server.server.stack] CHIP Controller Stack initialized.
2026-03-19 17:54:08.059 (MainThread) INFO [matter_server.server.server] Matter Server initialized
2026-03-19 17:54:08.059 (MainThread) INFO [matter_server.server.server] Using 'end0' as primary interface (for link-local addresses)
2026-03-19 17:54:08.062 (MainThread) INFO [matter_server.server.server] Starting the Matter Server...
2026-03-19 17:54:08.085 (MainThread) INFO [matter_server.server.helpers.paa_certificates] Skip fetching certificates (already fetched within the last 24h).
2026-03-19 17:54:08.086 (MainThread) INFO [chip.FabricAdmin] Allocating new controller with CaIndex: 1, FabricId: 0x0000000000000002, NodeId: 0x000000000001B669, CatTags: []
2026-03-19 17:54:08.489 (Dummy-2) CHIP_ERROR [chip.native.DIS] Failed to advertise records: src/inet/UDPEndPointImplSockets.cpp:417: OS Error 0x02000065: Network is unreachable
2026-03-19 17:54:08.505 (Dummy-2) CHIP_ERROR [chip.native.DL] Long dispatch time: 417 ms, for event type 2
2026-03-19 17:54:08.533 (MainThread) INFO [matter_server.server.vendor_info] Loading vendor info from storage.
2026-03-19 17:54:08.554 (MainThread) INFO [matter_server.server.vendor_info] Loaded 404 vendors from storage.
2026-03-19 17:54:08.555 (MainThread) INFO [matter_server.server.vendor_info] Fetching the latest vendor info from DCL.
2026-03-19 17:54:09.169 (MainThread) INFO [matter_server.server.vendor_info] Fetched 403 vendors from DCL.
2026-03-19 17:54:09.170 (MainThread) INFO [matter_server.server.vendor_info] Saving vendor info to storage.
2026-03-19 17:54:09.185 (MainThread) INFO [matter_server.server.device_controller] Loaded 0 nodes from stored configuration
2026-03-19 17:54:09.203 (MainThread) INFO [matter_server.server.server] Matter Server successfully initialized.
2

Thanks for the clues. They point to network problems. Any VLANs, VMs, Docker, container, firewall, filter, remote access setups? Custom routing? Custom add-ons? Make sure they are configured so the appropriate data gets through.

Start by listing your network addresses. Both hardware and software. Server, hubs, routers, devices. Physical and logical. The patterns will emerge and the solutions become evident.

3

Sorry, could you explain possible solutions? I`m not that deep into this topic and AI isn´t really helpful.
Thanks in advance

4

Let’s find the possible problems first, and systematically eliminate them.

I’m not asking the questions in my previous post to waste your time. The detail you gave provided so far cannot be used to narrow down the many solutions.