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Demote "no password" Wi-Fi workaround

Michael Ingraham 2019-10-16 15:27:22 -04:00
parent ba0d899918
commit 390c43bd08
1 changed files with 8 additions and 6 deletions
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14
FAQ.md

@ -103,12 +103,6 @@ DD-WRT also has Wi-Fi Multi-Media (WMM) enabled by default. Disabling WMM can r
### I entered the wrong Wi-Fi information
- If you have a device with a button and the button is configured as a component in the Tasmota settings (e.g., GPIO0 - Button1), you can try pressing the button to force the device into [Wi-Fi configuration mode](Button-usage#4-short-presses) with 4 short presses of the button.
- If you flashed a light bulb or any device without a built-in button and entered wrong Wi-Fi password you now have a device that won't connect to your Wi-Fi and you have no button to force it into Wi-Fi configuration mode.
To solve this you can try creating a new Wi-Fi AP with the same SSID and no (none) authentication. Use an old router, a mobile phone or, if you're desperate, change the settings on your main router (but remember to turn authentication back on when you're done). Depending on the router/phone it will ignore the wrong Wi-Fi password since authentication is set to none and let your Tasmota flashed device connect to it.
Now simply connect to the same AP and open the web UI, triple check your ssid and password, enter some simple info for `SSID2` which you can create as a hotspot on your phone and save.
- If you are unsure what SSID you have entered, you can try to find that with special Wi-Fi sniffing tools. For example [Nirsoft WifiChannelMonitor](https://www.nirsoft.net/utils/wifi_channel_monitor.html) can show your mistakenly configured SSID name.
**Linux system example:**
```
@ -130,6 +124,14 @@ DD-WRT also has Wi-Fi Multi-Media (WMM) enabled by default. Disabling WMM can r
3. After getting the incorrectly entered configuration from this URL, configure an access point with these settings as described above
4. Access your device and set the correct Wi-Fi credentials
- If you flashed a light bulb or any device without a built-in button and entered wrong Wi-Fi password you now have a device that won't connect to your Wi-Fi and you have no button to force it into Wi-Fi configuration mode.
**This tip takes advantage of a security risk present in Arduino Cores prior to 2.6.0. It will not work with Tasmota binaries compiled with 2.6.0 or later.**
To solve this you can try creating a new Wi-Fi AP with the same SSID and no (none) authentication. Use an old router, a mobile phone or, if you're desperate, change the settings on your main router (but remember to turn authentication back on when you're done). Depending on the router/phone it will ignore the wrong Wi-Fi password since authentication is set to none and let your Tasmota flashed device connect to it.
Now simply connect to the same AP and open the web UI, triple check your ssid and password, enter some simple info for `SSID2` which you can create as a hotspot on your phone and save.
### Device disconnects from Wi-Fi often
First thing to try when having Wi-Fi issues: