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Expand Wi-Fi recalibration details

Michael Ingraham 2019-10-24 08:19:47 -04:00
parent 20f433661a
commit 0603d9f0a0
1 changed files with 5 additions and 1 deletions
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6
FAQ.md

@ -161,7 +161,11 @@ We've also seen reports then when a specific LED light bulb was hooked up near o
All you can really do is check the solder joints, move the device closer to your Access Point. If all else fails, replace the device. All you can really do is check the solder joints, move the device closer to your Access Point. If all else fails, replace the device.
### Weaker Wi-Fi signal after upgrade ### Weaker Wi-Fi signal after upgrade
In some cases the Wi-Fi signal strength (RSSI) drops significantly after upgrading to a newer version, specially when upgrading the Arduino core version. In such a case it is good to save the device configuration and run [`Reset 5`](Commands#reset) command which erases all flash and resets parameters to firmware defaults but keeps Wi-Fi settings. This also deletes Wi-Fi calibration data and after a restart Wi-Fi will re-calibrate. After this is done you will need to configure your device back to its previous settings. On an ESP82xx, Wi-Fi calibration is sensitive to the power supplied. If this changes substantially (e.g., you add a sensor, configure a new Tasmota feature, upgrade the firmware or Arduino Core, etc.), the device's Wi-Fi calibration may not be set properly any longer. The Wi-Fi signal strength (RSSI) can drop significantly and impact Wi-Fi performance. In such a case, the Wi-Fi calibration needs to be deleted to force the device to re-calibrate Wi-Fi after it restarts.
1. **Save the device configuration**
2. Run [`Reset 5`](Commands#reset) in the Console. This command deletes Wi-Fi calibration data, erases all flash memory, and resets parameters to firmware defaults _but keeps your Wi-Fi network credentials_
3. The device will restart
4. **Restore your device configuration from the _step 1_ backup**
## MQTT ## MQTT
### Cannot connect to my MQTT broker ### Cannot connect to my MQTT broker