Cannot configure network after network conneciton is lost

[wailnucleus]

Hi all

I've lost my robot's network and serial console and kindly asked for input here.

I can now reset the WiFi by pressing and holding the two outer buttons, but the Valetudo WLAN configuration always fails with an error message

What I've done so far:

Connect with robot AP
Login to Valetudo through http://192.168.5.1

Configure the WLAN in Valetudo WegGUI
Now I get the following error message from robot after some time (seems to be a timeout):
"Unable to connect to the server. Please check your local network and please try again..."

I can ssh to the robot and do some checks:

Robot:
[root@p2029_release:~]# ls -ltr /data/config/miio
total 2
-rw-r--r-- 1 root root 168 Jan 1 00:00 device.conf
-rw-r--r-- 1 root root 17 Jan 1 00:00 device.token

Backup I took some time ago:
ls -ltr data/config/miio/
total 20
-rw-r--r-- 1 oec oec 168 Jan 1 1970 device.conf
-rw-r--r-- 1 oec oec 17 Jan 1 1970 device.token
-rw-r--r-- 1 oec oec 52 Jan 1 1970 wifi.conf
-rw-r--r-- 1 oec oec 2 Jan 1 1970 device.uid
-rw-r--r-- 1 oec oec 3 Jan 1 1970 device.country

-> Conclusion: some files are missing

log entry:
"set empty to /data/config/ava/iot.flag"

[root@p2029_release:/data/log]# cat /data/config/ava/iot.flag
[root@p2029_release:/data/log]#
-> iot flag is empty

In my backup, it is not empty:
cat config/ava/iot.flag
miio

WLAN config looks good on the robot in /data/config/wifi/ap_config.json

I would like to try last part of https://builder.dontvacuum.me/dreame/cmds.txt, but of course, I do not want to brick my vacuum, especially as the serial console does not seem to work anymore:

rm -rf /data/config/miio/*
reboot

• wait for the open WiFi of the robot to show up
• press the Home and Spot button at the same time (if the open WiFi does not show up)
• connect to that WiFi
• navigate to http://192.168.5.1 in your browser
• go to settings/wifi and enter your WiFi credentials

Any comments or recommendations?

Kind regards

[mandomal]

I don't have specific advice. How did you find the IP you needed to connect to?

[wailnucleus]

Thank you, mandomal, Valetudo is actually running on the robot. The network configuration seems to be broken and I am unable to re-confiure it. But I cannot easily debug it as the serial console does not work anymore.

When I reset the WLAN on the robot, I can connect to the robot's WIFI (dreame-vacuum-p2029_miapXXXX). I open http://192.168.5.1 on my browser. I can authenticate with the username/password I configured for Valetudo when I installed it the first time a year ago. I can also SSH to the robot's IP as usual with my key when in "WLAN setup mode".
When actually I try to re-configure the WLAN now

by inserting the WLAN SSID and password, I get a timeout error from the robot after some time and the new configuration does not seem to be saved or activated on the robot.

When I reboot, the robot does not connect anymore to the home WIFI. However, when I reset the robot's WIFI, what I can again reset the WLAN and start over..

The remaining issues for now are that when I set the SSID and PSK/Password in the Valetudo WebGUi, the config is not saved and that I somehow lost the serial console.

Hence I would like to try last part of https://builder.dontvacuum.me/dreame/cmds.txt, but of course, I do not want to brick my vacuum, especially as the serial console does not seem to work anymore:

"(If you used wifi_cli, you need to delete files in /data/config/miio, reboot, connect to the robot WiFi and provision the WiFi via Valetudo):
rm -rf /data/config/miio/*
reboot"
-> then hopefully the network will be back.

Thank you for your consideration.