Cloud access broken after router swap

C-4 owner on 2.2.3.148 here. Yesterday I swapped my LTE router as it had some random connectivity issues. Everything is running fine, including HE, except cloud access. My old router was a TP-link Archer MR600, now replaced by an Asus 4G-AC53U. Dynamic IP with my ISP, no change. Steps taken to resolve so far

  1. Manual IP assignment in DHCP server for HE's mac address (same as on the old router)
  2. Hubitat Portal checked, correct local IP shown and check-in timestamp very recent
  3. Soft reset + restore (no effect)
  4. Restore access token (no effect)
  5. Multiple hub reboots
  6. Hub shutdown and power disconnected for 1 hour
  7. Technical support was contacted yesterday (no response yet)

Can the router itself block something the cloud relay is dependent on? To my understanding, the ONLY thing changed is the router.

I see when checking the hub time that there is a one hour time difference between browser time and hub time, probably because of daylight saving that came into effect last Sunday.

What if the cloud link actually got broken due to the daylight savings time change?

It looks like your time zones are different between your browser and hub, CET is an hour later than GMT so things look right except one of the time zones.

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Yes but what can I do about the fact they differ and does it relate to my cloud access being dead?

I doubt it would affect the cloud access, but you can correct the time zone on the device that isn't right for your location to find out. On the hub go to settings then location and modes to set the time zone. For the browser its affected by the computers time zone so were you change that depends on the kind of device you're using.

Timezones
Hub: correct
Laptop: correct
iOS: correct
"browser": 1h off

No response from technical support. Out of options here. All cloud services (dashboards, mobile app) are down.

Have you tried to update the time? If so you may need to wait a few hours for the cloud connection to be reestablished. A time drift will prevent ths hub to connect to the cloud.

I'd also suggest rebooting the hub from the settings menu now that the router is stable. Sometimes the hub won't auto reconnect after an outage until it is rebooted although I haven't seen that with recent firmware updates myself.

Thanks, I have done that (many times), see steps 1-7 in my OP.

You mean via the Diagnostics tool? But the HUB time is correct:
Thu, 05 Nov 2020 11:25:xx CET

The "browser time" (I am currently on a DELL laptop) is
Thu, 05 Nov 2020 10:25:xx GMT

My browser time is picked up from my O/S? I am running Windows 10. Control Panel shows
Thu, 05 Nov 2020, 11:25:xx UTC+01:00

How do I get the browser time to be the same as my O/S time?

If I hit the "update" button in the diagnostics tool it says "succesfully updated time" but the same 1h difference per above remains.

Yesterday I fired up an older OS X laptop and when I used the diagnostics tool from it I could see the time for browser and hub were perfectly aligned. No time difference. I also did a hub reboot from this laptop but no joy, cloud still does not work. "No response from hub".

Device Time difference hub time - browser time
iOS iPhone Xs 1h
OS X laptop 0h
Win10 1h

A user with a similar problem, no resolution in the thread:

I restored back to 2.2.3.145. After reboot I got the red flag notifying there is a new version available. I hit update and it tries to download but to no success, it never connects, see attached screenshot. @bobbyD image|375x500

It finally connected, but took >10-15 mins and 2.2.3.148 was downloaded and applied.

The cloud access problem remains though

Any other ideas here on the forum on how to restore the cloud connection or things to test or check? A full reset and start from scratch with rebuilding my zwave network is not a tempting option... at all.

I have not received any suggestions from support, as of yet.

EDIT: I renamed this thread to "Cloud access broken"

Similar issue here:

Any suggestions @bobbyD?

a couple things to look at.. do you have upnp enabled in the router.. see if anything has reserved ports.. also did you put any ips in the dmz or port forwared that could be conflicting with port 80 or whatever ports the hubitat uses.. I assume you have it on a private ip and are using nat.. Also check if the new router has a firewall on.. some automatically do even though they are not overly necessary if using nat..

also depending on router if it has shell or http access or a test screen. you could try some the cloud urls yourself.

Have you tried NTP Client / Local NTP Server support ?? I use this to keep my hubs time in check.

also if it is just cloud dashboard access you can try resetting the token in the dashboard settings.. off course the url's will now change.