Not sure which category this falls under. I just spent the last 3 days banging my head against this and wanted to share the fix I found.
I recently updated from Sequoia to Tahoe (26.6.1) on my Mac Mini M4. After updating, all of my docker images with jupyter notebooks would not connect to the kernel. I was getting constant websocket timeout errors. The fix was turning off the “Use Rosetta” option in Docker desktop settings. I have no clue how or why this fixes it, but I found it on a random reddit thread from 10 months ago and now everything is running great and I can work on my notebooks again.
If anyone has any insights as to what Apple changed in this latest OS to mess all the websockets up, I’d love to learn more! I’m pretty sure this issue should be isolated to mac products with the Apple Silicone chips since Rosetta is only an option on Docker for those chips, but would also be curious to hear if anyone ran into this issue on intel chips with Tahoe