No response from Shelly i3

Dear forum members.

Since yesterday my 2 Shelly i3 are dead. We did not change anything to the network.

It's possible to access the 2 devices, but there is no response at all.
Also, when we try to connect them to a different wifi network, they both give an error message: "Error! Could not manage this device type!". See second pic.

The button in the app is blank like in this image:

When we try to reconnect, this error shows up:

Anybody has an idea what is the cause?

I'd rather not reset the devices because then we have to reinstall all connected url's and scenes.

Thanks a lot in advance.

Solution:

1. If the i3 is online, you can connect to it (or any Shelly) via it's ip address.

2. The best way to find the ip address, is to scan with Angry IP Scanner.

Download AND use it free from: https://angryip.org/download/#windows

3. In Angry Ip Scanner, right click the ip address -> Open -> Web Browser

4. The web interface of your Shelly opens. Now you can set your values.

Tip: if I/O URL actions are not working on, for example, your i3, you must check whether the url to be hit is still correct. Use static url settings in order to prevent linking to the wrong url.

vsvasilatos people say it is best to give Shelly devices a fixed IP address.

However, I never succeeded since settings in modem/router need to be adjusted as well since you need to make a reservation for a range of IP addresses on you router.

To do so is not idiot proof, as I found out.

As I understand, the idea is:

1. make reservation of IP addresses on your router

2. use these IP addresses for your Shelly fixed IP addresses.

Hopefully somebody can provide a full tutorial on this.