# Problems with zigbee sensors connections **URL:** \ **Category:** NSPanel Pro\ **Tags:** zigbee\ **Created:** [January 20, 2026, 8:16am UTC](https://forum.ewelink.cc/t/problems-with-zigbee-sensors-connections/207340 "2026-01-20T08:16:25Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![toahawk](https://avatars.discourse-cdn.com/v4/letter/t/b782af/32.png) [@toahawk](https://forum.ewelink.cc/u/toahawk)\ **Post date:** [January 20, 2026, 8:16am UTC](https://forum.ewelink.cc/t/problems-with-zigbee-sensors-connections/207340/1 "2026-01-20T08:16:25Z")
Hello all, My zigbee devices loose their connection to nspanel pro time to time (2 or 3 times a day). They appears as they are offline, and cannot reach it. My nspanel pro version is 4.1.5, and it says it is the newest version. What can I do? ---
**Author:** ![Milk](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.ewelink.cc/milk/32/8679_2.png) [@Milk](https://forum.ewelink.cc/u/Milk)\ **Post date:** [January 20, 2026, 8:36am UTC](https://forum.ewelink.cc/t/problems-with-zigbee-sensors-connections/207340/2 "2026-01-20T08:36:26Z")
I apologize for this issue. We have made optimizations in the latest version. You can send me your device ID separately, and I will deploy a new version for your device. ---
**Author:** ![p.silhan](https://avatars.discourse-cdn.com/v4/letter/p/ec9cab/32.png) [@p.silhan](https://forum.ewelink.cc/u/p.silhan)\ **Post date:** [January 20, 2026, 8:47am UTC](https://forum.ewelink.cc/t/problems-with-zigbee-sensors-connections/207340/3 "2026-01-20T08:47:46Z")
To be honest - get Zigbee Bridge Pro. I use both and ZBBP is far more stable than NSPP. ---
**Author:** ![toahawk](https://avatars.discourse-cdn.com/v4/letter/t/b782af/32.png) [@toahawk](https://forum.ewelink.cc/u/toahawk)\ **Post date:** [January 20, 2026, 9:27am UTC](https://forum.ewelink.cc/t/problems-with-zigbee-sensors-connections/207340/4 "2026-01-20T09:27:33Z")
10022e531e ---
**Author:** ![toahawk](https://avatars.discourse-cdn.com/v4/letter/t/b782af/32.png) [@toahawk](https://forum.ewelink.cc/u/toahawk)\ **Post date:** [January 20, 2026, 9:43am UTC](https://forum.ewelink.cc/t/problems-with-zigbee-sensors-connections/207340/5 "2026-01-20T09:43:11Z")
I have one, but if I connect through that, nspanel cannot read their values. Or can it? ---
**Author:** ![Milk](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.ewelink.cc/milk/32/8679_2.png) [@Milk](https://forum.ewelink.cc/u/Milk)\ **Post date:** [January 20, 2026, 10:00am UTC](https://forum.ewelink.cc/t/problems-with-zigbee-sensors-connections/207340/6 "2026-01-20T10:00:08Z")
To upgrade your current version to 4.3.2, you first need to upgrade to 4.3.0 (I have already deployed version 4.3.0 for your device. You can refresh and check for the new version to upgrade). Once the upgrade is complete, I will direct version 4.3.2 to your device. Thank you for your understanding. ---
**Author:** ![toahawk](https://avatars.discourse-cdn.com/v4/letter/t/b782af/32.png) [@toahawk](https://forum.ewelink.cc/u/toahawk)\ **Post date:** [January 20, 2026, 10:09am UTC](https://forum.ewelink.cc/t/problems-with-zigbee-sensors-connections/207340/7 "2026-01-20T10:09:44Z")
At the moment my nspp updated to 4.3.0, a that is the newest version what found. ---
**Author:** ![p.silhan](https://avatars.discourse-cdn.com/v4/letter/p/ec9cab/32.png) [@p.silhan](https://forum.ewelink.cc/u/p.silhan)\ **Post date:** [January 20, 2026, 10:32am UTC](https://forum.ewelink.cc/t/problems-with-zigbee-sensors-connections/207340/9 "2026-01-20T10:32:32Z")
Use temp sensors, one motion sensor, TVRZBs and you can control them via NSPP even if connected via bridge. ---
**Author:** ![toahawk](https://avatars.discourse-cdn.com/v4/letter/t/b782af/32.png) [@toahawk](https://forum.ewelink.cc/u/toahawk)\ **Post date:** [January 20, 2026, 10:35am UTC](https://forum.ewelink.cc/t/problems-with-zigbee-sensors-connections/207340/10 "2026-01-20T10:35:24Z")
what does tvrzb stand for? ---
**Author:** ![toahawk](https://avatars.discourse-cdn.com/v4/letter/t/b782af/32.png) [@toahawk](https://forum.ewelink.cc/u/toahawk)\ **Post date:** [January 21, 2026, 7:54am UTC](https://forum.ewelink.cc/t/problems-with-zigbee-sensors-connections/207340/11 "2026-01-21T07:54:44Z")
During the night my nspp updated automatically to v4.3.2. Was that you @Milk ? ---
**Author:** ![Milk](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.ewelink.cc/milk/32/8679_2.png) [@Milk](https://forum.ewelink.cc/u/Milk)\ **Post date:** [January 21, 2026, 8:06am UTC](https://forum.ewelink.cc/t/problems-with-zigbee-sensors-connections/207340/12 "2026-01-21T08:06:50Z")
> [@toahawk](#): > > 10022e531e I have directed version 4.3.2 to your device. If you have automatic downloads enabled, the device will proactively download the latest version. After the download is complete, you need to manually click “Install” to upgrade to version 4.3.2. ---
**Author:** ![toahawk](https://avatars.discourse-cdn.com/v4/letter/t/b782af/32.png) [@toahawk](https://forum.ewelink.cc/u/toahawk)\ **Post date:** [January 21, 2026, 8:40am UTC](https://forum.ewelink.cc/t/problems-with-zigbee-sensors-connections/207340/13 "2026-01-21T08:40:57Z")
@Milk Hi, I’ve bought 3x SNZB-02DR2, I’ve connected to the same nspanel. It says there is a firmware update for them, but I cannot update them. Could you help me? ---
**Author:** ![Milk](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.ewelink.cc/milk/32/8679_2.png) [@Milk](https://forum.ewelink.cc/u/Milk)\ **Post date:** [January 21, 2026, 8:56am UTC](https://forum.ewelink.cc/t/problems-with-zigbee-sensors-connections/207340/14 "2026-01-21T08:56:38Z")
I apologize for this issue. We have already addressed the problem. I just checked, and your device is still on version 4.1.5. You need to upgrade to version 4.2.0 or above (the device is only supported on NSPanel Pro 4.2.0 and later). You can now refresh to obtain version 4.3.0. After the upgrade, please delete the `02DR2` and re-add it. This should resolve the issue. If you have any further problems, feel free to contact me at any time. ---
**Author:** ![toahawk](https://avatars.discourse-cdn.com/v4/letter/t/b782af/32.png) [@toahawk](https://forum.ewelink.cc/u/toahawk)\ **Post date:** [January 21, 2026, 9:25am UTC](https://forum.ewelink.cc/t/problems-with-zigbee-sensors-connections/207340/15 "2026-01-21T09:25:14Z")
@Milk thanks, the update is being downloaded onto 02DR2, but it is very slow. But it seems working. Don’t you need a tester for eWeLink to test these things? 😃 ---
**Author:** ![toahawk](https://avatars.discourse-cdn.com/v4/letter/t/b782af/32.png) [@toahawk](https://forum.ewelink.cc/u/toahawk)\ **Post date:** [January 23, 2026, 7:13am UTC](https://forum.ewelink.cc/t/problems-with-zigbee-sensors-connections/207340/16 "2026-01-23T07:13:22Z")
Hi again! It seems, the problem also exist every evening / night, I think when China is in the morning, but when here turns to morning, everything becomes good. Are you still working on my device? ---
**Author:** ![Milk](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.ewelink.cc/milk/32/8679_2.png) [@Milk](https://forum.ewelink.cc/u/Milk)\ **Post date:** [January 23, 2026, 9:38am UTC](https://forum.ewelink.cc/t/problems-with-zigbee-sensors-connections/207340/17 "2026-01-23T09:38:25Z")
No, are you still unable to upgrade the 02DR2? Or is the connection to the child device unstable? If the issue is concentrated during a specific time period, you can check if your home network was congested at that time. ---
**Author:** ![toahawk](https://avatars.discourse-cdn.com/v4/letter/t/b782af/32.png) [@toahawk](https://forum.ewelink.cc/u/toahawk)\ **Post date:** [January 23, 2026, 9:46am UTC](https://forum.ewelink.cc/t/problems-with-zigbee-sensors-connections/207340/18 "2026-01-23T09:46:08Z")
I was able to upgrade it. The problem is with the connected zigbee devices. They broke their connection to nspanel pro every evening/night and the are not reachable (seems offline). I think my home network is not congested every night. Shall I use another zigbee bridge instead of nspanel pro? ---
**Author:** ![Milk](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.ewelink.cc/milk/32/8679_2.png) [@Milk](https://forum.ewelink.cc/u/Milk)\ **Post date:** [January 23, 2026, 9:50am UTC](https://forum.ewelink.cc/t/problems-with-zigbee-sensors-connections/207340/19 "2026-01-23T09:50:46Z")
I apologize for this issue. You can promptly submit the logs, and I can help determine from the logs whether it might be related to a network issue. ---
**Author:** ![toahawk](https://avatars.discourse-cdn.com/v4/letter/t/b782af/32.png) [@toahawk](https://forum.ewelink.cc/u/toahawk)\ **Post date:** [January 23, 2026, 10:01am UTC](https://forum.ewelink.cc/t/problems-with-zigbee-sensors-connections/207340/20 "2026-01-23T10:01:32Z")
e.g. I did nothing, and currently also everything is offline ![image](https://europe1.discourse-cdn.com/flex005/uploads/ewelinkforum/original/2X/9/9e9a38a9f0b31c30566098f50e7b4fe47acdbd0f.png) ---
**Author:** ![toahawk](https://avatars.discourse-cdn.com/v4/letter/t/b782af/32.png) [@toahawk](https://forum.ewelink.cc/u/toahawk)\ **Post date:** [January 23, 2026, 10:06am UTC](https://forum.ewelink.cc/t/problems-with-zigbee-sensors-connections/207340/21 "2026-01-23T10:06:34Z")
suddenly they are ok ![image](https://europe1.discourse-cdn.com/flex005/uploads/ewelinkforum/original/2X/4/4fa27d3eb6705c8809c19f17d48be234b4b0838a.png) [Next page](https://forum.ewelink.cc/t/problems-with-zigbee-sensors-connections/207340.md?page=2)