I don’t know about any issues that Homey hangs,
Was it only not reachable on the network?
Did you also test if Flows still work?
What was your LED ring / screensaver and was it still moving?
Did you already create an support Issue at Athom?
This is a community forum and your posts, questions and suggestions will not be read by Athom. You can read more about this here Welcome to the forum.
For support or issue resolution, first have a look at https://support.athom.com and if you cant find an answer there then you create a new ticket here https://support.athom.com/hc/requests/new.
If you need help in how to create a support request you can find more information here.
