we have Exchange front end and backend server
OWA not working
OWA hosted only front end server and open with local host /exchange login prompt coming but notable to login
Backend server even notable open the local host /exchange not working
check system event logs 1009 and 1011 error is Generated
after that we have restart the Back end server now working fine
what is issue
Exchange 2003 sp2 6.5 standard please suggest what we need avoid this problems