Try changing the EZB to different WiFi channels. You can do that in the ezb web configuration interface or visit http://192.168.1.1 when connected to the ezb wifi

Thanks DJ, I've thought about trying that. It did disconnect again last night. Again, at 3:32 AM, so it's always between 2 and 4 AM. Weird. Any certain channel(s) you recommend?

It's impossible to recommend a channel for your environment

What does the ping graph look like? I created a program for you above that you can download and run.

Yeah, I need to upload the file. I had many failed pings overnight, more than 100. And a couple that took more than 2 full seconds. The program you whipped up is very useful.

At least one of those very long pings were when the microwave was running.

I need to see what’s in the details button and some words that you write around what you think happened

Microwave ovens work in the 2.4 GHz band, same as our wifi (as long as we cant use 5 GHz wifi with the EZB V5 ? ). Ovens are shielded, but even with shielding they dont contain all of the ~1000W they put out, just the vast majority. But compare the 1000W oven to a more typical 0.06W that a wifi device would use and its easy to see why even tiny radiation leakage from your oven will stomp all over your wifi signal.

I dont think there is a bullet proof solution to this. 5GHz wifi is the most obvious solution, but the ezb doesnt support that afaik. If your wifi signal is not perfect to begin with, you could try a better wifi solution, ideally with directional antennas. I recently bought an Ubiquity Amplify mesh wifi setup. Its not cheap, in fact its ridiculously expensive, but it does maintain connection to my laptop throughout my house even then the microwave is on.

You could also just try adding a high gain directional antenna to your router and pointing it to your robot. It may or may not help. Its RF, which is black magic, no one knows anything.