# Notifications of no data sent
**URL:** https://forum.sensor.community/t/notifications-of-no-data-sent/2658
**Category:** FAQ
**Created:** [March 14, 2024, 12:36pm UTC](https://forum.sensor.community/t/notifications-of-no-data-sent/2658 "2024-03-14T12:36:28Z")
**Posts on this page:** 10
**Page:** 1
### Author:  [@Ralphonsob](https://forum.sensor.community/u/Ralphonsob)
#### Post date: [March 14, 2024, 12:36pm UTC](https://forum.sensor.community/t/notifications-of-no-data-sent/2658/1 "2024-03-14T12:36:28Z")
I’ve just received multiple notifications that my sensors have not sent data for over 24hrs.
These are:
sensor 83226 (ChipID: esp8266-361637); and:
sensor 79464 (ChipID: esp8266-6500303)
However, as far as I can see, they are both working fine, and since they are geographically so far separated (one in Switzerland, one in Slovenia) I cannot but wonder if these are false alarms, indicating some problem at the Sensor.Community server.
Can someone advise?
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### Author:  [@Ralphonsob](https://forum.sensor.community/u/Ralphonsob)
#### Post date: [March 14, 2024, 12:45pm UTC](https://forum.sensor.community/t/notifications-of-no-data-sent/2658/2 "2024-03-14T12:45:26Z")
I suppose [Data upload stopped](https://forum.sensor.community/t/data-upload-stopped/2651) is the problem, eh?
Patching the firmware locally is **not** going to be possible for me, for one of the sensors, for some time. What a totally foreseeable pain in the arse.
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### Author:  [@Ralphonsob](https://forum.sensor.community/u/Ralphonsob)
#### Post date: [March 15, 2024, 6:51am UTC](https://forum.sensor.community/t/notifications-of-no-data-sent/2658/3 "2024-03-15T06:51:44Z")
Actually it was remarkably easy for my Nettigo devices. Just needed to restart them, and they picked up the latest firmware automatically.
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### Author:  [@sensorsalnorth12](https://forum.sensor.community/u/sensorsalnorth12)
#### Post date: [March 15, 2024, 8:00am UTC](https://forum.sensor.community/t/notifications-of-no-data-sent/2658/4 "2024-03-15T08:00:32Z")
Thank you for the information. Unfortunately I have tried this and my devices are still not being picked up by the community. Can you tell me what version of the firmware you were using please. Do we need to check the beta firmware option?
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### Author:  [@dasky](https://forum.sensor.community/u/dasky)
#### Post date: [March 15, 2024, 8:45am UTC](https://forum.sensor.community/t/notifications-of-no-data-sent/2658/5 "2024-03-15T08:45:54Z")
Same issue here. 2 devices went offline at the same time. Restart did not bring them back online. Both are still out of action.
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### Author:  [@Ralphonsob](https://forum.sensor.community/u/Ralphonsob)
#### Post date: [March 15, 2024, 9:20am UTC](https://forum.sensor.community/t/notifications-of-no-data-sent/2658/6 "2024-03-15T09:20:05Z")
The new version is NAMF-2020-45a.
In the NAM config, in _advanced_ tab you should have ‘updated firmware automatically’ selected, and _stable_ as firmware source. Then the NAM should update without any intervention. Since it checks for updates once per day or two you may need to restart it to get the newer firmware after boot (on start there is always a check for new firmware.)
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### Author:  [@Ralphonsob](https://forum.sensor.community/u/Ralphonsob)
#### Post date: [March 15, 2024, 9:20am UTC](https://forum.sensor.community/t/notifications-of-no-data-sent/2658/7 "2024-03-15T09:20:34Z")
See my other message, for instructions I received from Nettigo.
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### Author:  [@sensorsalnorth12](https://forum.sensor.community/u/sensorsalnorth12)
#### Post date: [March 15, 2024, 9:41am UTC](https://forum.sensor.community/t/notifications-of-no-data-sent/2658/8 "2024-03-15T09:41:50Z")
Thank you very much for the information. Ahh this looks different from our firmware which is NRZ-2020-133/en (Nov 29 2020), we are using the sensor community kit from Nettigo.
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### Author:  [@Ralphonsob](https://forum.sensor.community/u/Ralphonsob)
#### Post date: [March 15, 2024, 9:56am UTC](https://forum.sensor.community/t/notifications-of-no-data-sent/2658/9 "2024-03-15T09:56:39Z")
I would suggest you contact info@nettigo.pl direct.
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### Author:  [@RePaRe\_Measurements](https://forum.sensor.community/u/RePaRe_Measurements)
#### Post date: [March 20, 2024, 8:21am UTC](https://forum.sensor.community/t/notifications-of-no-data-sent/2658/10 "2024-03-20T08:21:41Z")
Dear community,
I registered new sensor 2 weeks ago.
I’ve just received multiple notifications that my sensors have not sent data for over 24hrs.
Its sensor 86275 (Chip ID: esp8266-8122364)
On madavi it shows:
Unexpected end of JSON input. What can be the problem?
Can someone advise?
Thanks a lot
Kind regards