There really is no need to reinstall the firmware. Corrupting existing firmware is just not something the 272 (or other green screen streamers) ever do.
Restarting everything involved is the first thing I would try personally.
Turn off the 272, your router and any switches. Wait a few minutes. Turn on the router and let it fully boot up. Then do the same if you have a switch. Then finally turn the 272 on. Hopefully it will then be fine.
Just noticed the UPnP logo on your screen shot. Is this a screen shot of what happens when you play Tidal, because it should show a Tidal icon (if you are using the Naim app and selecting the Tidal option and then playing etc). The UPnP icon will probably only show when you are using something like Tidal on a PC and using something like bubbleupnp which sends the Tidal tracks using UPnP to the 272?
UPDATE - Spoke to Naim Tech Support, not good news, they believe one of the boards inside is failing - needs to go back for some TLC from Naim unfortunately
I’d go along with ElMarko’s suggestion. In fact I already do :-). I haven’t used the Naim app for a while. I do everything via bubble, and on the plus side, as mentioned, it will give you access to hi-res streams, including (presumably) hi-res on Tidal when we all get updated (by Tidal) in April.
My QNAP lacked the ffmpeg for bubblesoft to transcode properly so I ended up installing a container that had bubblesoft running in it. Worked without a hitch and never had to mess with it. Used the new Linn App to control it and hires sounded great. A good option for legacy streamers. There’s a thread here with the details if anyone is inclined.
I would definitely like to see that thread. I am feeling a bit of a Luddite here, what will I have access to on TIDAL that I don’t already and what is being updated (by TIDAL) in April?