Since end December I have had issues replicating sensor values from my remote ha to my master instance. Currently running HA core 2026.1.0 on both remote and master

I have used wireshark to look at the data flow between the two instances. It seems that when I restart the master instance, a websocket is created and initial communication is established, but within a short time (less than 1 minute) the websocket is closed again

The flow each time is as follows, it starts a http, switches to wss, and transmits a few data, and events. Then the remote responds with a pong message, and the wss connection is closed again, as can be seen in the attached screenshot. The highlighted line in wireshark is the pong message, and right after the socket is closed again. When looking at the development tools and events in HA (the remote) I see lots of new state_change events, which do not replicate

The ipaddress ending in .52 is the remote instance

Any further debug info needed?