Hub going offline frequently

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1

Hi, hub keeps going offline. When I try to access it via the browser, it says "Cannot GET" followed by the page I'm trying to reach.

Then a few minutes later, it will be reachable again. The status light remains green and there aren't any system events logged.

It's really frustrating. I've tried rebooting.

2

Does your hub have a fixed IP address?

3

Yes. It seems to have become more unreliable since I've given it a static IP but I can't be sure.

Also, the "Cannot GET" error seems to be served by the Hub and not a browser error message.

Edit: Turns out the hub still works, but I just can't load the web interface when it gives the error. I can ping the hub with no packet loss via Terminal. I also get this when entering the IP address into the browser directly: {"description":"not authorized"}

4

There are several possibilities.

  • Your Router has a lot of errors on the port assigned to the Hub (i.e., greater than 1%). (This actually happened to me - was a bad router from my ISP. I added a bridge router and the problem went away.)
  • A custom app or driver has an error that is causing the problem.
  • A standard app or driver.
  • A defective hub.

Corrective Testing. The below may isolate the problem. Once the issue is resolved, you have identified the "likely" cause for you to correct. Follow-on is to fix the problem with the specific component.

  1. Check you Router for error rates or other issues.
  2. Check the "PastLogs" in HE and look for either errors or too frequent log entries for devices.
  3. Disable (one at a time) custom apps and see if that corrects the problem. (do not delete, disable).
  4. Disable devices associated with custom drivers one at a time. Do this in groups (i.e, all devices using a particular custom driver).
  5. Do the above again on standard apps and drivers (less likely issues).

Disabling apps and devices. To do this, go to the apps or driver page in HE. In the upper right corner there is a shaded "X". Select that and a disable column will be added.

Dave

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5

Have you sent a request to support@hubitat.com? Since your problem seems to come and go frequently, perhaps support could catch it while things are misbehaving and help to diagnose it.

1 Like
6

I had this exact same problem a few weeks ago and thought it was a hardware problem. Turned out my son powered on an old device that had the exact same static IP assigned to it thus IP Address conflict was the cause. After powering down that device all was good. My suggestion to you is to power down your hub and after a few minutes ping that IP address to see if there is a response and if so you have an IP conflict.

5 Likes
7

Thanks! I tried this and pings were not successful when the hub was off.

8

Thank you. I would've never known about this feature. I was removing apps instead while troubleshooting.

I just applied the latest update so I'll have to see if maybe that helps before I systematically go through the apps again.

9

I don't know what I did but things are more stable now.

I let the hub update install. I put everything on static IPs including all the Wink Relays and Lutron Pro. I removed and manually re-added each Relay.

So far so good for 24 hours.

1 Like