I set up my new C-8 and migrated everything from C-7, I had before. New device worked fine for a few weeks, but at some point lost connection to the network (may be after software upgrade or power interruption we experienced).
Now it flashes green/red lights (not connection) even after I wire connected it to the IP modem. Everything else on the network (wired to router or Wi-Fi) work fine.
My set up is like: IP modem (includes NAT) -> router (another NAT) -> mash Wi-Fi access point in bridge mode (no NAT).
In order to transfer configuration to C-8, I plugged it into modem directly (behind single NAT). That did the trick: device was registered and configured correctly. Then I wired it into one of Wi-Fi mash station (behind second NAT) and connected it to the Wi-Fi. It worked fine for few weeks and then stopped. Don’t know if it was a result of complex configuration or software upgrade or power interruption, but now I pluged it back to IP modem, which so far didn’t help to restore connection from C-8 to internet.
I did. It didn’t help. It would be behind 2 NATs, which caused problem for migration.
Now, it connected to the ISP modem, which was recommended during setup process.
Let’s not talk about double NAT, I think there is a good reason for that.
However, now C-8 wired to ISP modem and iPad connected to the Wi-Fi access point of the same device.
Actually, connection of iPad doesn’t matter now, because the hub flashing red/green light, which means it is not OK.
Anybody has any idea what to do in my case? I hate to not be able to use HE. My wife pointing on this as prove that smart tech is not that smart yet. I need support to make it work…
I am not the networking expert, but to me it sounds like the problem is your network rather than the hub.
I don't think you ever answered @rlithgow1 question regarding
I still don't get why you have or need double nat, again not the expert but every single thing I have ever read in the past few decades say to not do that for some reason.
If it isn't your network, did you perhaps change any of the network settings on the hub, like Static IP or the DNS settings? Those are VERY easy to misconfigure and cause the issues you are having.
The flashing light indicates a lack of connection to the network from what I am aware. Again, not a hub problem, it can't connect to your network for some reason.
Did you try a network reset on the hub? Press the button on the bottom of the hub for at least 7 seconds, the hub should reboot and go back to default network settings. This does not change or erase any automations or devices, it is simply a network reset.
Now I have my C8 connected directly to the ISP modem, so simplest setting with single NAT. Router has enabled DHCP and C8 did work fine before in this exact configuration.
I reset hub by holding button and it rebooted, but still cannot connect to network (flushing red/green).
You've said a couple times now that you've connected your C8 to your modem... Unless you have one of those all-in-one modem/router units, you need the C8 connected to your router, not the modem itself.
If you pressed the reset button for more than 7 seconds, and you have tried changing power supplies and cords and changed network cable and you are still flashing red and green you need to put into support.hubitat.com, click warranty and the bottom and then let them know... @bobbyd will take care of it
Can you power cycle the hub (maybe a few times). I have seen this problem with earlier update versions. This issue has been corrected in the latest release. If you can get the hub reconnected via Ethernet ( ) then immediately update the hub to the latest release. If you are unable to reconnect, then, replacement is your only option. The problem is that while the hub is connected via Ethernet it is still trying to use the Wi-Fi.
) then immediately update the hub to the latest release. If you are unable to reconnect, then, replacement is your only option. The problem is that while the hub is connected via Ethernet it is still trying to use the Wi-Fi.
