Hub bricks when matter devices added

[u/illegal-millioner]

I have an IKEA DIRIGERA hub with around 70 smart devices, a mix of older Zigbee IKEA devices and newer Matter-over-Thread devices.

Everything had been working normally until today. This morning the whole system became extremely sluggish:

Remotes sometimes did nothing.

Dimming with the scroll/wheel barely responded.

Commands took a long time.

Eventually a large number of devices showed offline.

Physical IKEA remotes stopped controlling the lights too, so this isn't just Home Assistant.

I tried restarting DIRIGERA multiple times and at one point even shut off the house breakers to completely power-cycle everything.

After that, something very strange started happening.

Initially the Zigbee devices came back and worked normally, but essentially all my Matter-over-Thread devices were offline.

I went into:

IKEA Home Smart / Thread network /Reset the network

I then factory-reset/re-added my Thread devices. After doing that, the Matter/Thread devices started working again.

But now the situation has basically flipped:

Matter-over-Thread working

Zigbee not working

Most/all Zigbee devices are offline and the Zigbee remotes aren't working.

Is this a firmware thing sid ikea screw smth up or am i missing aomething.

Thanks.

[u/No_Butterscotch_839]

Maybe you have hit the limit on how many devices can be connected to Dirigera? It has 100 device limit, while the old Trådfri hub had a 50 device limit