Eero's repeatedly going offline past couple of days
Over the past couple of days my Eeros are frequently going offline (red light). I go through the standard routine of restarting them, the modem, etc. Sometime they come right back, sometimes it take several attempts. Current situation is they are down and I've restarted the Eeros 5 times (my ISP modem is fine...I'm posting this while plugged directly into it.) I noticed there was a security/stability update a couple days ago. Is anyone else having issues? I'm not sure how to troubleshoot this. I've had a problem in the past that I ultimately fixed by reinstalling/configuring the gateway Eero but that seems like an annoying "fix" when this happens.
Update: They are 3 second generation Eeros.
Update. I couldn't get the gateway back up so since we have work and school I decided to go the reconfigure the network route. Now the problem is that when reconfiguring the gateway Eero it won't get past the "Connecting to the internet..." step. As I mentioned the internet connection and modem are fine (connect with them here) but the Eero just doesn't seem to see the connection.
You shouldn't have to rebuild your network to resolve this behavior. Lets try performing a soft reset. I have included a link below that will guide you through this process.
Let me know if that resolves this behavior or not and we can proceed further if needed.
As an update, I got the eero to (finally) register this morning. What set me on the path was when I tried to connect another computer to the modem and the computer couldn't get an IP address. I reset set the modem (from the ISP side) and I noticed the previous IP address changed from the negotiation with the modem and the computer was able to access the Internet. I couldn't recall if I'd ever triggered a reset to the modem while the ethernet cable was plugged into the eero so I plugged the cable and power into the eero, reset the modem, and once it was up went through the eero configuration process and viola, it worked.
This has made me reconsider the issue and now it could be some problem with the way the DHCP is negotiating the IP addresses, which means I need to talk to Cox again.
At this point I still am not sure if this is "fixed" meaning if I power off the modem or the eero will it simply come back up on restart (I didn't want to test it this morning because we need the network up today.)
I'm still actively debugging this so if anyone recognizes anything here and can add more info, it would be much appreciated.
I thought I'd come back and let everyone know how this turned out since it's a classic reminder that sometimes the source of a problem is something you're not suspecting at all.
Recap: We were having connectivity issues where our eero went offline (red light) daily, sometime multiple times a day, requiring restarts of the eeros, the modem, and/or the ISP resetting the modem from their side. We were flummoxed on what was wrong after working extensively with eero and Cox Cable support.
Knock on wood, we haven't had to restart anything in 3 days. The potential solution was suggested by the technician who came out to change our modem which we thought might be bad. Once he was here, he said based on what was happening he thinks it was a surge at the box where our cable line was coming into the house. The surge would cause a momentary outage on the modem which was causing the problems we were seeing but would go back to normal after a bit which was why Cox didn't see it when we called. He put a device in the box to smooth out the signal and we haven't had any trouble since (he did not change the modem, by the way.)
Hopefully this fixes it. We haven't had any issues since he was here.
Thanks to James Wilcox for all his suggestions!