Shelly TRV network response times strange

Hello all,

I am having issues with the coupling of Shelly DW2 and my new TRVs. The TRVs seem to be missing out the http information of the DW2 about open and closed doors. This seems to be partly a DW2 issue, but I found out that the TRVs respond very slowly anyway. Connecting with the browser to their web interface is slow and controlling them from the app is also slowly. Pings to their IP address is showing this:

Antwort von 192.168.1.194: Bytes=32 Zeit=1407ms TTL=255

Antwort von 192.168.1.194: Bytes=32 Zeit=17ms TTL=255

Antwort von 192.168.1.194: Bytes=32 Zeit=1417ms TTL=255

Antwort von 192.168.1.194: Bytes=32 Zeit=6ms TTL=255

Antwort von 192.168.1.194: Bytes=32 Zeit=1338ms TTL=255

Antwort von 192.168.1.194: Bytes=32 Zeit=2225ms TTL=255

Antwort von 192.168.1.194: Bytes=32 Zeit=2437ms TTL=255

Antwort von 192.168.1.194: Bytes=32 Zeit=3ms TTL=255

All othe Shellys reply in less than 5 ms, so do all othe devices on my network. All TRVs have the same behavior. Rebooting them doesn't help.

I have Unifi APs and switches. I have a dedicated 2.4 GHz IoT WLan, DTIM=1, all other 'special' Unifi options are disabled.

Does anybody see a similar behavior or does anybody have any ideas?

Best regards

Ronald

This is bad news. I bought 8 TRVs and DW2s to save heating energy and I decided to buy Shellys because until now I like them. I hope it was not a major bad decision and failed investment.