So I can tell you that setting my 5ghz channel to 157 (rather than auto) has fixed my issue. Are you using a single SSID (or a feature like smart connect/band steering on your router) and are you sure you’re connected to the 5ghz (rather than 2.4ghz) band? I ask because channel 6 is associated with the 2.4ghz band and not 5ghz. I did have issues on 2.4ghz too.
I keep the 2.4ghz and 5ghz bands with separate SSID’s. I make sure the ATV only connects to the 5ghz band, and I leave it only on channel 157. Maybe take another look at your router settings. No clue why this only impacted my ATV and none of my other devices which were all fine but since doing that it’s been workin fine for me. Hope that helps, I know how frustrating this can be.
Edit: reading your comment again it sounds like you’re using a mesh network. I don’t have experience with those so not sure how they handle dual bands and if they give you the option to separate out the 2.4ghz and 5ghz bands.
Oh sorry man, I’m using channel 36 on the 5ghz, I think that was just a tired typo! Thanks for replying though.
My mesh network doesn’t have separate SSID’s for the 2.5 or 5ghz, it’s just dual band and allows devices to connect how they need to. I have a ton of smart lights, switches etc that all use 2.5ghz. The ATV however is definitely using the 5ghz as I can see all those details in the mesh app.
I have way too many devices to change an SSID at this stage to give myself separate ones and I’d be spending half a day doing it just for the ATV. It’s definitely a fault with the ATV wifi because I’ve had two of these 1st gen 4K ones and have done the exact same thing. I have a 3rd gen in my my tv room now but that’s always been wired and cba to check
It’s like the Wi-Fi card doesn’t come out of standby, the Wi-Fi is connected all the time even when it’s ‘off’ so maybe when it’s like this it’s in some super power save mode and only goes to full wack when it powers on.
My opinion is Apple surely by now should have accepted this as a known issue because there’s enough posts out there about it and most people are all using different Wi-Fi equipment. Problem is it’s very hard to replicate in store or something because it happens randomly after a few weeks since last proper power cycle.
I hope that yours is fixed but the whole channel thing that you have identified doesn’t make sense for me seeing as I am on 36.
I’ve picked up a little plug in Wi-Fi extender with an Ethernet port on it, I’ll hide it behind the TV and let that work around the issue.