Dear All,
We got a weird problem and wonder if anyone would have a clue; please help to have a look at details below and let me know your idea 
1. We have several connection server instances running in lab including 5.1, 5.2 and 5.3 - they all base on same domain and vsphere
2. A few weeks ago the domain crashed.... we had to recover the domain and re-add all machines into domain, including these view connection servers and agent hosts
3. Since then the connection servers are running on and off - at first it can stay working for a week and then user cannot logon anymore; now it can work for 20-30 minutes and then the same; looking at server services the connection server service and the other stuff are still in running status, I can restart the service so it can work for another 20-30 minutes, and then the same -- user cannot logon view broker and administrator cannot refresh the admin page
4. When this happens, after a few hours, administrator can logon admin page again - and the server is showing "the service is not working properly". Users are still unable to logon broker.
Is this weird for everyone here as well?
Regards,
Leon Li