# Random fast cyan blinking **URL:** \ **Category:** Troubleshooting\ **Created:** [September 18, 2018, 2:57am UTC](https://community.particle.io/t/random-fast-cyan-blinking/44042 "2018-09-18T02:57:44Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![DriftingShadows](https://avatars.discourse-cdn.com/v4/letter/d/6de8d8/32.png) [@DriftingShadows](https://community.particle.io/u/DriftingShadows)\ **Post date:** [September 18, 2018, 2:57am UTC](https://community.particle.io/t/random-fast-cyan-blinking/44042/1 "2018-09-18T02:57:45Z")
Occasionally, I would have photons in the field just start rapidly blinking cyan. I know this is the case when the device can connect to the access point but not to the Particle cloud. This is easily remedied by just turning off then on the device. The thing is though, there are other photon devices on the same network which havn’t exhibited this issue. The router the photons are connected to is connected to another router. Each router has DHCP enabled and it is double NAT’ed. Would these cause conflicts on the photons? Any other suggestions as to what the issue might be is welcome. Thanks! Also the devices are in automatic mode with system thread enabled. ---
**Author:** ![Mjones](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/mjones/32/21658_2.png) [@Mjones](https://community.particle.io/u/Mjones)\ **Post date:** [September 18, 2018, 3:30am UTC](https://community.particle.io/t/random-fast-cyan-blinking/44042/2 "2018-09-18T03:30:41Z")
What version firmware are they each running? ---
**Author:** ![DriftingShadows](https://avatars.discourse-cdn.com/v4/letter/d/6de8d8/32.png) [@DriftingShadows](https://community.particle.io/u/DriftingShadows)\ **Post date:** [September 18, 2018, 4:07am UTC](https://community.particle.io/t/random-fast-cyan-blinking/44042/3 "2018-09-18T04:07:01Z")
0.8.0-rc.10 but it occured on 0.7.0 as well.