# Zigbee not pairing, athom not responding **URL:** \ **Category:** Questions & Help\ **Tags:** zigbee, homey-pro\ **Created:** [November 2, 2023, 9:41pm UTC](https://community.homey.app/t/zigbee-not-pairing-athom-not-responding/93538 "2023-11-02T21:41:34Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![Peter\_Kawa](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_kawa/32/173848_2.png) [@Peter\_Kawa](https://community.homey.app/u/Peter_Kawa)\ **Post date:** [November 2, 2023, 11:38pm UTC](https://community.homey.app/t/zigbee-not-pairing-athom-not-responding/93538/2 "2023-11-02T23:38:31Z")
Hello Pitris, > [@PiTRiS](#): > > as Athom support is now ignoring for more than 2 months OK, after reading your post, to me they are not ignoring you, but they apparently don’t have a standard solution. > [@PiTRiS](#): > > I basically cannot pair new devices - when I try to pair, homey does not detect the device in any timely manner. It’s just looking for device, for 10+ mins till it tells me it timed out. Are you keeping the distance between H. and the zigbee device within 10 cm? You are aware of the wifi - zigbee interference possibility? Did you tune the channels? Any neighbors with strong 2.4GHz wifi signals? Your issues sound like wifi interference to me… > [@PiTRiS](#): > > Battery powered devices are out of the question, as they timeout much sooner and I don’t really have time to press buttons on those to keep them in pairing mode… It works best when you pres the pair button briefly every 2 s to keep them from sleeping. I don’t understand why you don’t have time for this. When waiting for a device to pair, you sort of have no other option than to hold the device close to the nearest _router device_ for that one minute. Are you sure you put brand new batteries in those devices (just to make sure a half rotten battery is not the issue…) > [@PiTRiS](#): > > that no device in the zigbee list should be 2-3 characters long, I have resolved that by removing device and adding it again, now all my devices have 4+ char long address… I really have no clue what that even means. Can you share screenshots? > [@PiTRiS](#): > > I have also tried full reinstall from recovery, multiple times, no change there… OK, I just suggested that to your post [here](https://community.homey.app/t/zigbee-issues-with-pairing-several-sensors/92278/17) > [@PiTRiS](#): > > I have 5 devices router devices connected directly to Homey, eveyrthing else is connected via some other device, ~25 devices in total, > so there should be no issue with Homey device limit In theory this should work, but you really need to add more router devices (preferrably prior to any battery powered device) in my opinion. The device limit indeed is no issue with ~25 devices; While you don’t mention your H. model: A Pro 2023 should be able to handle up to 250 zigbee devices, but it’s zigbee implementation is still not 100% stable / bug free, as I understand from Emile (Athom creative director). > [@PiTRiS](#): > > Zigbee and RTS (for somfy blinds) > sometimes my automations did not work well with blinds as well, resulting in one blind not being closed when it should have been - it started happening at about same time zigbee issues started. 2.4GHz vs. 433MHz, they cannot affect each other. Keep in mind when closing/opening more than 2 or 3 blinds at once, it can occur random ones don’t always respond. Try to operate them with a second in between. > [@PiTRiS](#): > > Basically only thing I have not tried is full factory reset or zigbee network reset - and I can’t do that, because if it did not fix the issue, I’d be doomed… also fixing all devices and flows… ugh… I’m afraid it’s the only option you have, unless support comes up with a cunning plan… Make sure to fix your wifi channel to 1, 6 or 11 prior to resetting your zigbee network. I´m happy to announce you gonna have to spend some time to do some pairing again (START WITH ALL ROUTER DEVICES), but you’re not doomed, while @martijnpoppen made this wonderful script to replace your devices and thus repair your flows: > [@\[HOW-TO\]\[Pro\]\[Cloud\] - Tool to FIX (advanced) flows after removing and re-adding devices](https://community.homey.app/t/how-to-pro-cloud-tool-to-fix-advanced-flows-after-removing-and-re-adding-devices/65018): > > rotating_lightwarning Use at own risk! warning rotating_light Hi, So I just go a new house and wanted to make my Zigbee network a bit better by removing an re-adding my devices so I get a stable network. But the issue with this is you have to fix all your flows. (Ofcourse [Flow Checker App for Homey | Homey](https://homey.app/a/com.athom.flowchecker/) can indicate the broken flows) I made a small script which can help with fixing the flows. So what do you need: Device ID you would like to update - You can get this via t… (Not sure if it helps to brighten your mood, but I have had to reset Homey’s zigbee twice, and had to start from scratch with Home Assistant zigbee 3 times ( I bricked one zigbee dongle, bought another one, and later on my NUC died on me, along with it’s SDD. So I decided to start over with setting it all up).) --- _[View the full topic](https://community.homey.app/t/zigbee-not-pairing-athom-not-responding/93538)._