# Mesh still not stable **URL:** \ **Category:** General\ **Created:** [December 16, 2018, 3:59am UTC](https://community.particle.io/t/mesh-still-not-stable/46328 "2018-12-16T03:59:30Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![abhishek2101](https://avatars.discourse-cdn.com/v4/letter/a/41988e/32.png) [@abhishek2101](https://community.particle.io/u/abhishek2101)\ **Post date:** [December 16, 2018, 3:59am UTC](https://community.particle.io/t/mesh-still-not-stable/46328/1 "2018-12-16T03:59:31Z")
Hi I have 1 xenon as the gateway connected to the Ethernet with rest 5 in a single mesh network. All of them have been flashed to the latest firmware, but still after a few minutes I see red light on the gateway xenon. It flashes red for few minutes and then change back to slowly blinking blue. Are there more updates coming ? ---
**Author:** ![nrobinson2000](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/nrobinson2000/32/15624_2.png) [@nrobinson2000](https://community.particle.io/u/nrobinson2000)\ **Post date:** [December 16, 2018, 4:36am UTC](https://community.particle.io/t/mesh-still-not-stable/46328/2 "2018-12-16T04:36:04Z")
> [@abhishek2101](#): > > Are there more updates coming ? There definitely are. Mesh is still pretty unstable. ---
**Author:** ![mstanley](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/mstanley/32/20170_2.png) [@mstanley](https://community.particle.io/u/mstanley)\ **Post date:** [December 16, 2018, 4:59am UTC](https://community.particle.io/t/mesh-still-not-stable/46328/3 "2018-12-16T04:59:35Z")
Hey abhishek, We did just recently release rc26 to try and address a large number of issues we were seeing with Mesh reliability. That we can tell, many of them did what they were supposed to. With that said, we do recognize that we did not address all issues that users were having with Mesh. Your issue sounds like it might be the documented “SOS 7” issue. In particular, when the device flashes red, it can flash an SOS pattern with a number of flashes after. You can see this detailed in our docs [here](https://docs.particle.io/tutorials/device-os/led/xenon/#red-flash-sos). This issue is acknowledged on our [main topic for mesh issues](https://community.particle.io/t/updated-12-12-particle-mesh-known-issues-and-fixes/45722) at number 7. Our firmware team is digging into this further and we hope to have some more information soon on next steps on how to proceed with this issue. I want to assure you we are far from finished in releasing mesh updates. rc26 isn’t our last, nor will rc27 be. We are determined to keep iterating, getting feedback, and implementing fixes as needed until Mesh is stable and production ready. ---
**Author:** ![will](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/will/32/23374_2.png) [@will](https://community.particle.io/u/will)\ **Post date:** [December 17, 2018, 9:17pm UTC](https://community.particle.io/t/mesh-still-not-stable/46328/4 "2018-12-17T21:17:24Z")
Hey there! Adding on to what @mstanley contributed – we just posted an update on our stability progress to date and where our focus is moving forward. I encourage you to take a read and contribute your feedback. [Gen 3 improvements update - 12/17](https://community.particle.io/t/gen-3-improvements-update-12-17/46350) More specifically, we’re in the process of prepping a firmware release for the SOS-7 fix you described, which we’ve linked to an issue with the low level 802.15.4 driver from Nordic. We’ve worked with them to pull in the fix they provided and will make the `rc.27` firmware available as quickly as possible. ---
**Author:** ![will](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/will/32/23374_2.png) [@will](https://community.particle.io/u/will)\ **Post date:** [December 20, 2018, 11:14pm UTC](https://community.particle.io/t/mesh-still-not-stable/46328/5 "2018-12-20T23:14:29Z")
Hello folks, Wanted to follow-up with this thread to let everyone know that a fix for the **SOS-7 issue** has been released with `v0.8.0-rc.27`. The issues was tracked to a problem with the Nordic 802.15.4 driver. Instructions for upgrading are available below. We'd love to know if applying the release fixes the issue SOS-7 issue that you're experiencing. > [@\[Updated 3/21/19\] Gen 3 known issues](https://community.particle.io/t/updated-12-20-particle-mesh-known-issues-and-fixes/45722/3): > > Updating to the most recent release (v0.9.0) The most recent release for Particle Mesh is v0.9.0. To update your device to this version of firmware, use the following instructions: If you previously tried to set up your device using the Android mobile app and got a Bluetooth (BLE) pairing error (Nexus 6) or an error during device firmware upgrade, you should first manually update the device firmware to 0.9.0 using the Using the Particle CLI instructions below. The BLE fix requires a Particle De… * * * **Note** that we have seen some reports of change in behavior for `rc.27` when users call the `Mesh.subscribe()` function within the `setup()` loop that can result in a separate SOS-10 code which we're currently investigating. If this issue affects you, please note the following workaround. > [@\[Workaround identified\] Xenon flashing red 10 times after rc.27 upgrade](https://community.particle.io/t/workaround-identified-xenon-flashing-red-10-times-after-rc-27-upgrade/46455/12): > > Hey this is James from Particle. Please try adding waitUntil(Mesh.ready); before Mesh.subscribe() calls in setup() and see if that gets rid of the SOS. We’re looking into these issues.