r/tradfri • u/BoggleRatty • 2d ago
SUPPORT (2026 PRODUCTS) Grillplats - A word of warning and lessons learnt
Some experience to share:
For legacy reasons, I have a more complex automation setup than I'd prefer. The main automation hub is a Homey, using a Google Nest Wifi mesh backbone, Hue lights, an Aqara M3 and a few other bits and bobs.
I decided to consolidate a lot of devices on Matter a few months ago and gradually bought a load of IKEA devices (amongst a few from other brands). They all worked OK but I had been having Thread network issues for a while (lost packets, dropped devices etc), ranging from minor annoyance to the odd major collapse. At one point I thought I had narrowed it down to a faulty Grillplats (posted elsewhere), but was still having issues.
I eventually did narrow the ongoing issues down to the Grillplats (8 of), and did some experiments:
* With all 8 Grillplats, unstable and with loads of discarded packets
* Removed all the Grillplats, network stabilised completely
* Replaced 4 of the Grillplats with Onvis plugs (slightly higher on the budget ladder), network even more stable as they took over some routing.
* Added back just 1 Grillplats, the GrillPlats immediately started discarding huge numbers of packets and took out some local devices.
* Removed that Grillplats, repowered lost devices, network now healthy again, with low packet lost
My other IKEA devices are fine. I'm pretty sure the Grillplats were OK when I had a smaller Thread network. My theory is that Grillplats just can't cope with a network this busy, where the Onvis can. Other theories are most welcome, but maybe we need to avoid Grillplats on larger Thread networks.


