Problem with update Homey

Since I updated Homey (and then app) the devices are crashing. The formula I read is device is unreachable.
If I turn off and on homey it settles down but then after a few hours the same problem returns. How can I do?

That’s not a lot of information you provide.
If you would like, read the linked thread and give us some more information.

Don’t know what you mean exactly with turning off and on.
There are 2 possibilities:

If you didn’t tried a PTP, just do it.

Also you can try to restart the app (whatever app you mean).

What color ledring you are getting, and have you tried a new power 2A USB power outlet because it has happened that the poweradapter breaks and gives all kind of weird issues.