Shelly Motion Sensor Will not connect to Local WiFi

I have 2 Shelly Motion Sensors, and one went offline this morning, and despite several hours resetting time and time again it will not connect to my network. My other Sensor is fine (Same Network).

I can get into the sensor using 192.168.33.1 and perform Reset and i have also reset device using reset button on device.

I go through the procedure to attach it to my network, Wifi Mode/Client and connect to network (Tried Static and DHCP), input correct details for network (Triple Checked), press save and Shelly network disappears and blue light on device goes out, But despite going into 'Discover Devices' and scan, it does not find the device, but my router has given it an IP Address. Pinging this address doe not get any replies back, (Destination Host unavailable).

After 2 or 3 ins the Blue light comes back on and the Shelly network appears in list of available WiFi networks. The tamper multi-coloured light flash when device is moved, I have the sensor off the mount next to me about 1 Mtr from Router. Blue Just light stays on if sensor is not moved, except occasionally it will Rapid flash multi-coloured LED's for about 2-3 secs, then go back to solid blue again. There is NO device movement to set this flashing sequence off!!

Please can you help? My other shelly works well.

Battery is at 48%

FW Version: 20211004-105639/v2.0.2@7eba4128

Thank you

Zitat

Hi,

is the motion connected to a power supply when you try to setup?

If not, please try this way.

Good luck.

Thank you kindly for your reply, i have just tried it with the power lead attached, but unfortunately nothing still. However once the blue LED went off and the shelly wifi went off, something different happened. the LED's flashed multi colour '3 times' then no LED's now showing. I can see it has been assigned and IP-address in my router (See Picture 1) of 192.168.1.160, but it still cannot be found by the Shelly app in 'Discovered Devices', and cannot 'PING' this address.

The Tamper/Movement LED flashing still works (Multi Flashing), but there is no RED LED to detect motion, and now NO lights at all??

Do i have a faulty unit??

Thank you kindly again Sir

Steve