# Photon mysteriously goes Off-Line

**URL:** <https://community.particle.io/t/photon-mysteriously-goes-off-line/21267>\
**Category:** Troubleshooting\
**Created:** [March 20, 2016, 5:36pm UTC](https://community.particle.io/t/photon-mysteriously-goes-off-line/21267 "2016-03-20T17:36:37Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![BobG](https://avatars.discourse-cdn.com/v4/letter/b/ebca7d/32.png) [@BobG](https://community.particle.io/u/BobG)\
**Post date:** [March 20, 2016, 5:36pm UTC](https://community.particle.io/t/photon-mysteriously-goes-off-line/21267/1 "2016-03-20T17:36:37Z")

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I have a Photon sitting next to my WiFi router and it has been powered up and running code continuously for many months. Periodically, I find that its status on the particle cloud is offline, even though it is breathing cyan and running my program. I can tell that it is running my program because the program responds to external sensor trips and blinks the D7 LED twice whenever a valid sensor code is obtained by the Photon. So – why does it go offline, and how to I get it restored to online without resetting it?

Note: It seems to go offline after some prolonged period of inactivity of tripping sensors; however loop() is running continuously.

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**Author:** ![bing1106](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/bing1106/32/4766_2.png) [@bing1106](https://community.particle.io/u/bing1106)\
**Post date:** [March 21, 2016, 6:16pm UTC](https://community.particle.io/t/photon-mysteriously-goes-off-line/21267/2 "2016-03-21T18:16:22Z")

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@BobG,

This happens to me in the dashboard (Particle Build) sometimes for some P1/Photons but I am still able to call cloud functions or flash firmware updates for those modules so they are still connected to the Particle cloud.

Is that the case?

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<div class="post-metadata">

**Author:** ![BobG](https://avatars.discourse-cdn.com/v4/letter/b/ebca7d/32.png) [@BobG](https://community.particle.io/u/BobG)\
**Post date:** [March 21, 2016, 8:38pm UTC](https://community.particle.io/t/photon-mysteriously-goes-off-line/21267/3 "2016-03-21T20:38:05Z")

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No. I cannot contact it via the cloud nor can I flash code to it. It shows offline and the cloud behaves as if it is offline. The only thing that I can do is reset it and then it reestablishes a cloud connection and shows up as online. However, in so doing, I lose the data that the Photon has collected. Furthermore, I cannot deploy this photon to a site because I then could not access it physically to reset it.

I had reported this behavior before, but it was supposed to be fixed in a firmware revision. However, I am running the latest firmware (049) and this is still happening.

I have 2 Cores running the same firmware (for much longer) and they never had this problem. I now have one Electron, also running this same firmware, and I have not seen this problem occur (however, I haven’t had the Electron for very long).