My Hubitat Hub C-8 Pro disconnects from internet frequently (although green light is solid). The internet is 1GB/s speed connected to ARRIS modem/router. Unabled to reach the hub with either the Hubitat mobile iPhone app (wifi or cellular) or with mac computer (wifi). All of the Hub routines are not working. When I reboot the Hub, everything works for a few hours only, then drops out. Any solutions?
What makes you think this is only an Internet connection problem, then? Hubitat does not require the Internet for automations (unless, of course, the devices involved are cloud-only devices -- but that is pretty uncommon). Are you sure you don't just have a general hub problem that is manifesting multiple symptoms, including LAN connectivity (which really sounds like the problem if you can't reach it locally, either, not just Internet)?
There are a few things I would suggest.
First, when this happens, see if you can access the Diagnostic Tool using the instructions here: Hubitat Diagnostic Tool | Hubitat Documentation. You won't be be able to fix much there, but you could reboot if nothing else; and it would tell you that LAN connectivity to the hub itself is working. (This tool runs separately from the regular hub interface, so seeing whether you can access it is helpful to narrow down problems.)
Second, I'd suggest figuring out what is causing your hub to apparently stop working. This doc has many ideas, but the "General Hub Troubleshooting" section will be the most helpful: How to Troubleshoot Apps or Devices | Hubitat Documentation. Be sure to look at Logs for clues, consider any changes you might have made to your setup since the problem began, and anything else that might help narrow things down.
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