I updated to 6.6.1-2 today and run the same lengthy ping tests that I've been running for days now, same results, lots of drops :(

Ugh, everything crapped out last night - had to reboot / restart everything again. All the nodes except the gateway went offline, but there was no internet on the gateway anyway. I'm ready to throw in the towel and find another mesh system.

Yep made the mistake to 6.6.0 earlier this month after that one of my nodes started to crap out. Now as soon as 6.6.1 was released I was excited and thought maybe that would fix it. Not so much might be worse now. 

Seeing the same problems with 6.6.1-2 as well. It’s a pretty big pain point this occurred during holidays where guests are coming over and experiencing this from an eero device in my house too - not a good impression on eero’s stability.

I just noticed my gateway was always dropping and flashes a red light (causing all other devices connected to my switch to drop) but the hubs would be fine. I swapped the gateway with one of my hubs and testing this out now. Hopefully it works until a fix is pushed out.

Just installed a brand new system at my dad’s. Constantly dropping (probably 3 times in an hour). 
 

We’re just going to return it I guess 

I've been getting device drop outs on WiFi since upgrading to 6.6.1. Virtually every device on my network effected, including:
 

• Smart Phones
• Laptops
• iPads
• Apple TV
• Sonos speakers
• Wemo switches

The iOS drop issue I have previously reported continues here on the latest firmware, though perhaps not as frequently as in the past. I had a stationary iPad drop the other night.

6.6.1 and 6.6.2 are trash. Eero 6 here with two nodes and this is what I get on a gigabit connection. I’ve spent hours troubleshooting with their Support team and to make matters worse, now they won’t respond. A restart of the network will fix the issue temporarily for less than 15 minutes. 
 

Really bummed that I bought two of these systems. 
 

Highly recommend taking it back to all those that can. 

If you had higher speeds before 6.6.1-2, then I would suspect an issue with the firmware for sure. But, as we know, they update firmware frequently and are hopefully aware of the issue, and hopefully, it will be resolved in the next release. One thing I have noticed is that the mobile app no longer states what is in the new update, or any previous updates. Update history just shows a blank page. Though Eero seems to be like many mobile apps where every release just says "bug fixes and performance improvements" without any additional detail. I am a software developer and a technical lead and know we would never get away with that. Every change in each release is detailed and made available to our users. This ambiguous technical double talk would never get past our change management team. I agree that wifi speeds on the eero have slowed from what they were previously.

I have 3 Ring cameras connected to my Eero and haven't had any issues so don't let that put you off.

I have two eero 5 Pro units connected with Cat 5e. The remote node uses an unsupported POE device for power, which has worked beautifully until I installed 6.6.1-2. This resulted in 100Mbps speeds on that node only. Switching to the standard power adapter has been the only way to return to gigabit.

We've had our Eero Pro system for three years and 6.6, especially 6.6.1-2 is the straw that broke the camel's back. This firmware version has been nothing but trouble with each update breaking things worse than the one before. Just created my account to post on this discussion board that we are ditching Eero. Just purchased a Deco mesh from TP-Link.