I have been using my first C7 for about a year, with no issues. Works really well.
I purchased a second, which seems to have fundemental issue reltating to networking.
To remove any network hardware issues, I have plugged the new problamatic C7 into where the origonal one was working. Green light comes on.
There is a message saying "cloud connection is unavailable" and I cant manage to update the firmware as it starts and then just times out on 0%.
Here is what I have tried.
Set speed to auto negotiate
Tried static and DHCP
Reset button pressed for 7s
Tried a soft reset through :8081
Tried updating firmware though :8081
Tried a hard reset through :8010 (after entering mac address) and there is no hard reset button option.
I also notice when I can occationall connect, the C7 seems to be running extremely slowly when compared to the working one. For eample when clicking on rooms, it might take 15 seconds to load, then it flashed up the page, then a connection lost error from the brouser comes up.
I am sure there is something up with the network settings, but unsure what to try next.
Pretty sure all the green light means is the UI is up and running. It's good that it's green but I don't think it tells you much about network connectivity.
A couple things I might try... first flip your configuration back to using DHCP just to eliminate any issues with a static configuration (bad DNS entries are a common problem).
(1) Try pinging the new hub repeatedly and see if you're having packet loss. I suspect you are. If so proceed with the next few steps. If not I'm likely barking up the wrong tree,
(2) are you using a known good ethernet cable between the hub and the switch? You said you plugged your new HE into the same switch port as the working HE, did you use the same cable? If not try reverting to a known good cable.
(3) Just confirming you tried both auto-negotiate and fixed 100Mbps. Sounds like you did.
(4) Did you try a different switch port? Should make no difference if you're using a known good one, but...
If none of these help it would seem to me to be an issue with the hub's network interface, in which case we can get someone from support to assist. But try those steps first.
I would set the speed to fixed 100mbps, especially if you are connecting the hub to a Netgear or Asus networking switch, and also as @brad5 suggested, I would set back to use the DHCP server. One thing I didn't see you mentioned, which may prevent the hub to connect to the cloud, is updating the time from browser. You can do that from Hub Details or Diagnostic Tool. If these measures don't help, please send me a private message along with your new hub's MAC address.
Sorry... . Layer 1 is a reference to the OSI model, which describes the various components of data communications. Layer 1 refers to the physical components including the physical network interface, the cabling, etc. The OSI model is not used all that often anymore so I am dating myself!