# Aqara devices are lost **URL:** \ **Category:** Questions & Help\ **Tags:** zigbee, devices\ **Created:** [August 2, 2021, 10:22am UTC](https://community.homey.app/t/aqara-devices-are-lost/50004 "2021-08-02T10:22:43Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![Edwin\_D](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/edwin_d/32/136417_2.png) [@Edwin\_D](https://community.homey.app/u/Edwin_D)\ **Post date:** [August 2, 2021, 11:04am UTC](https://community.homey.app/t/aqara-devices-are-lost/50004/2 "2021-08-02T11:04:16Z")
Check the [Homey Developer Tools](https://tools.developer.homey.app/tools/zigbee) to see how many end devices (usually battery operated, such as the aqaras) are directly connected to Homey. If that is over 15 and you do not have many zigbee router devices, you may need to add extra routers. Athom also does not advise more than about 30-40 zigbee devices in total connected to Homey without use of an additional bridge. I have 50 though, and a stable zigbee mesh. If you still use the original Athom power adapter then try replacing it with a different one rated 2.1A or higher. Voltages of the original tend to drop below what’s needed. You could also try the procedure to reinstall a full firmware (without loosing any data) using the procedure described here: > [@Homey went offline/ crash](https://community.homey.app/t/homey-went-offline-crash/19336/52): > > About a week ago my Homey v1.5x suddenly showed a red ring when I woke up. As Homey was only controlling home automation and I didn’t interact with it for about a year, I figured that Athom was the problem. It took a few days but today I got a solution and my Homey is working again. According to the messages above I get the impression that Athom did this on purpose to force old users to update, which I do not consider as customer friendly. However… Their last email contained this (translated fro… It may be that the firmware is somehow not completely installed. If that does not fix it I think you should contact athom support. --- _[View the full topic](https://community.homey.app/t/aqara-devices-are-lost/50004)._