# Hub offline after power outage **URL:** \ **Category:** Tempest Owners\ **Tags:** hub\ **Created:** [January 16, 2019, 11:15pm UTC](https://community.tempest.earth/t/hub-offline-after-power-outage/3003 "2019-01-16T23:15:15Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![andyhudsonsmith](https://avatars.discourse-cdn.com/v4/letter/a/a88e4f/32.png) [@andyhudsonsmith](https://community.tempest.earth/u/andyhudsonsmith)\ **Post date:** [January 16, 2019, 11:15pm UTC](https://community.tempest.earth/t/hub-offline-after-power-outage/3003/1 "2019-01-16T23:15:15Z")
Evening - I’m away from home at the moment but noticed our power went off for 4 minutes today and WF is not reporting via its app: > **[My Smart Weather Station](https://smartweather.weatherflow.com/share/2701/grid)** > > Check out the weather from my WeatherFlow Smart Weather Station. I assume the hub has not come back online - although i am getting data via udp so thought i would post. This has happened a few times - i thought the hub was meant to come back online in case of a short power outage? Andy ---
**Author:** ![GaryFunk](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/garyfunk/32/5729_2.png) [@GaryFunk](https://community.tempest.earth/u/GaryFunk)\ **Post date:** [January 17, 2019, 2:57am UTC](https://community.tempest.earth/t/hub-offline-after-power-outage/3003/2 "2019-01-17T02:57:26Z")
That is strange. The Hub is online but not connected to the WeatherFlow servers. Send an email to [support@weatherflow.com](mailto:support@weatherflow.com) and ask the tech to investigate. ---
**Author:** ![andyhudsonsmith](https://avatars.discourse-cdn.com/v4/letter/a/a88e4f/32.png) [@andyhudsonsmith](https://community.tempest.earth/u/andyhudsonsmith)\ **Post date:** [January 17, 2019, 11:25am UTC](https://community.tempest.earth/t/hub-offline-after-power-outage/3003/3 "2019-01-17T11:25:33Z")
Thanks - i have bounced a email to support… Andy ---
**Author:** ![rderr](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/rderr/32/114_2.png) [@rderr](https://community.tempest.earth/u/rderr)\ **Post date:** [January 17, 2019, 9:55pm UTC](https://community.tempest.earth/t/hub-offline-after-power-outage/3003/4 "2019-01-17T21:55:52Z")
Hi Andy, That’s very interesting. Can you tell me if you’re getting the hub\_status UDP message when your hub went offline? Thanks, -Rob ---
**Author:** ![andyhudsonsmith](https://avatars.discourse-cdn.com/v4/letter/a/a88e4f/32.png) [@andyhudsonsmith](https://community.tempest.earth/u/andyhudsonsmith)\ **Post date:** [January 17, 2019, 10:06pm UTC](https://community.tempest.earth/t/hub-offline-after-power-outage/3003/5 "2019-01-17T22:06:53Z")
I gave it a power cycle when i got home and it came back - so apologies but i now cant check, all i know is that my rapid wind data was reporting fine (although still not sure i am getting the 3 sec updates). Andy ---
**Author:** ![rderr](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/rderr/32/114_2.png) [@rderr](https://community.tempest.earth/u/rderr)\ **Post date:** [January 17, 2019, 11:27pm UTC](https://community.tempest.earth/t/hub-offline-after-power-outage/3003/6 "2019-01-17T23:27:30Z")
Thanks for the information. The three second data was probably coming over the bluetooth connection to the hub. Was the LED on the hub RED? Thanks, -Rob ---
**Author:** ![andyhudsonsmith](https://avatars.discourse-cdn.com/v4/letter/a/a88e4f/32.png) [@andyhudsonsmith](https://community.tempest.earth/u/andyhudsonsmith)\ **Post date:** [January 18, 2019, 9:30am UTC](https://community.tempest.earth/t/hub-offline-after-power-outage/3003/7 "2019-01-18T09:30:06Z")
Yep the light was red - it was transmitting to my Raspberry Pi the other side of the house (which has not been paired with the hub) so I’m assuming it was via wifi (?). Andy ---
**Author:** ![gizmoev](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/gizmoev/32/941_2.png) [@gizmoev](https://community.tempest.earth/u/gizmoev)\ **Post date:** [January 18, 2019, 2:45pm UTC](https://community.tempest.earth/t/hub-offline-after-power-outage/3003/8 "2019-01-18T14:45:19Z")
I have a Raspberry Pi setup as an access point with a WiFi uplink for my mobile unit. I noticed that the hub light goes red when the uplink is lost yet the RPi is still getting the data from the hub. This means the hub light goes red for any broken link with WF servers. ---
**Author:** ![GaryFunk](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/garyfunk/32/5729_2.png) [@GaryFunk](https://community.tempest.earth/u/GaryFunk)\ **Post date:** [January 18, 2019, 4:37pm UTC](https://community.tempest.earth/t/hub-offline-after-power-outage/3003/9 "2019-01-18T16:37:51Z")
> [@gizmoev](#): > > This means the hub light goes red for any broken link with WF servers. David @dsj would need to confirm but I think that is correct. If the Hub has an internet connection but cannot cannot connect to the WeatherFlow server the LED is red. ---
**Author:** ![dsj](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/dsj/32/3_2.png) [@dsj](https://community.tempest.earth/u/dsj)\ **Post date:** [January 18, 2019, 5:15pm UTC](https://community.tempest.earth/t/hub-offline-after-power-outage/3003/10 "2019-01-18T17:15:33Z")
Correct, that’s the expected behavior. ---
**Author:** ![andyhudsonsmith](https://avatars.discourse-cdn.com/v4/letter/a/a88e4f/32.png) [@andyhudsonsmith](https://community.tempest.earth/u/andyhudsonsmith)\ **Post date:** [January 18, 2019, 6:01pm UTC](https://community.tempest.earth/t/hub-offline-after-power-outage/3003/11 "2019-01-18T18:01:04Z")
Thats good to know - thanks for all the answers - thought if it had wifi it would connect to the servers but it needed a power cycle. No worries - spent the last few hours trying to solve my sky stuck in power save mode but without any joy (thats a separate thread 🙂 ) Andy ---
**Author:** ![rderr](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/rderr/32/114_2.png) [@rderr](https://community.tempest.earth/u/rderr)\ **Post date:** [January 18, 2019, 6:09pm UTC](https://community.tempest.earth/t/hub-offline-after-power-outage/3003/12 "2019-01-18T18:09:19Z")
The hub does try to connect to our servers when it has wifi. It tries about every 10 seconds as long as it’s not connected. We know the hub is trying to reconnect, but we’re not sure why it’s not working correctly. We’re enabling additional status monitoring which should tell us where it’s failing in the process. -Rob ---
**Author:** ![gazinho](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/gazinho/32/5039_2.png) [@gazinho](https://community.tempest.earth/u/gazinho)\ **Post date:** [May 15, 2019, 8:14pm UTC](https://community.tempest.earth/t/hub-offline-after-power-outage/3003/13 "2019-05-15T20:14:10Z")
Hi All WF’s, Every time there is a mains power interruption here the hub goes RED and stops sending data. The only remedy appears to pull the micro USB, wait, then replug - it then show GREEN as it reboots. Fine if I’m around, but there have been interruptions when I’m not at home. Any suggestions to guarantee an uninterrupted data stream gratefully received… > **[My Smart Weather Station](https://smartweather.weatherflow.com/share/5284)** > > Check out the weather from my WeatherFlow Smart Weather Station. ---
**Author:** ![gazinho](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/gazinho/32/5039_2.png) [@gazinho](https://community.tempest.earth/u/gazinho)\ **Post date:** [May 15, 2019, 8:18pm UTC](https://community.tempest.earth/t/hub-offline-after-power-outage/3003/14 "2019-05-15T20:18:23Z")
And yes, if I use my cel to access your app, the hub turns BLUE… ---
**Author:** ![dsfg](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/dsfg/32/9736_2.png) [@dsfg](https://community.tempest.earth/u/dsfg)\ **Post date:** [May 16, 2019, 5:44am UTC](https://community.tempest.earth/t/hub-offline-after-power-outage/3003/15 "2019-05-16T05:44:41Z")
Maybe you put a power bank in between your power supply and the Hub hence you get an UPS? ---
**Author:** ![GaryFunk](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/garyfunk/32/5729_2.png) [@GaryFunk](https://community.tempest.earth/u/GaryFunk)\ **Post date:** [May 16, 2019, 5:51am UTC](https://community.tempest.earth/t/hub-offline-after-power-outage/3003/16 "2019-05-16T05:51:28Z")
It seems like you have a Wi-Fi issue with the access point you use. Tell us what Wi-Fi equipment you use. ---
**Author:** ![gazinho](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/gazinho/32/5039_2.png) [@gazinho](https://community.tempest.earth/u/gazinho)\ **Post date:** [May 16, 2019, 2:51pm UTC](https://community.tempest.earth/t/hub-offline-after-power-outage/3003/17 "2019-05-16T14:51:25Z")
Currently an Apple Airport Time Capsule, but soon to be replaced by Google Mesh… ---
**Author:** ![vreihen](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/vreihen/32/13217_2.png) [@vreihen](https://community.tempest.earth/u/vreihen)\ **Post date:** [May 16, 2019, 3:02pm UTC](https://community.tempest.earth/t/hub-offline-after-power-outage/3003/18 "2019-05-16T15:02:39Z")
FWIW, mine has worked fine with the final version of the Apple Airport since day one. Let me throw in a footnote that I’m running separate SSIDs for 2.4 Ghz and 5 Ghz radios in the Airport… ---
**Author:** ![GaryFunk](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/garyfunk/32/5729_2.png) [@GaryFunk](https://community.tempest.earth/u/GaryFunk)\ **Post date:** [May 16, 2019, 3:45pm UTC](https://community.tempest.earth/t/hub-offline-after-power-outage/3003/19 "2019-05-16T15:45:13Z")
Did you name the 2.4 and 5 GHz the same ssid name? ---
**Author:** ![dsj](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tempest.earth/dsj/32/3_2.png) [@dsj](https://community.tempest.earth/u/dsj)\ **Post date:** [May 17, 2019, 3:41pm UTC](https://community.tempest.earth/t/hub-offline-after-power-outage/3003/20 "2019-05-17T15:41:59Z")
> [@gazinho](#): > > Every time there is a mains power interruption here the hub goes RED and stops sending data. Hi there. This is a rare and pesky issue that we’ve been trying to solve. And you can help! We’ve just enabled a network debugging feature for your station. This feature allows us to collect diagnostic info via the iOS app, over BLE. Next time you experience this issue, please try these steps: 1. Confirm the light on your Hub is RED but do not cycle the power 2. Open the Smart Weather app on your iOS device and confirm the light on your Hub turns BLUE to indicate a BLE connection is active. 3. Let it stay connected for a brief period (it usually takes seconds, but I’d give it a minute or two) That’s it! Go ahead and restart your Hub to restore the connection. Then send an email to [support@weatherflow.com](mailto:support@weatherflow.com) and let us know the approximate time you performed the above steps. Hopefully the debug info will give us some info about what’s going on. [Next page](https://community.tempest.earth/t/hub-offline-after-power-outage/3003.md?page=2)