Time out for firebase realtime database

I am trying to get all users from firebase realtime database. I have right Database URl and Firestore URL. I've tested connection and everything is fine. But when I try to get all users I have timeout error.
There is my query:

When I try to get even one user with Database ref users/{uid}, I still have timeout error. But I really don't understand what's the problem. When I get user from firebase auth - everything works as it should.

Hi @Ekaterina_Klementeva

Thanks for reaching out! The test connection feature can be a bit misleading as it won't necessarily confirm if we can access the resource via all query types.

Are you able to share a screenshot of the realtime db users from Firebase?

Are there any console errors?