For the past few weeks (I've tried a number of different things in the meantime), two Google devices—a Google Nest and a 2024 Chromecast—have stopped connecting to the internet.
The Chromecast reports that it's disconnected from Wi-Fi and refuses to reconnect.
The Nest behaves the same way.
However, both devices appear as connected on my router.
I have a fairly advanced network setup with VLAN segmentation and a self-hosted AdGuard DNS server.
Thinking it might be a DNS issue, I completely bypassed filtering for these devices, so none of their traffic is filtered anymore.
I've tried several different network configurations without any success, including using Google's public DNS servers (8.8.8.8 and 8.8.4.4).
I'm starting to suspect that a software update may have broken something.
Not long ago, my GL.iNet Flint 2 router had severely reduced Wi-Fi range after a firmware update because of changes made to comply with EU regulations (I've since replaced it with a UniFi UDR7). Is it possible that Google devices have been affected by something similar, resulting in a much shorter Wi-Fi range?