I am using exchange server 2010 in DAG environment. There are three Mailbox servers in DAG. Two exchange server EXCH1, EXCH2 is in same A location and EXCH3 is in B location. EXCH1 and EXCH2 is syncing properly but copy queue length on EXCH3 is increasing high. ping is OK to all servers. I
1. Did telnet to EXCH3 from EXCH1 at 64327, it is connection succesful
2. Did telnet to DAG01 from EXCH1 at port 64327, connection successful
3. Did telent to EXCH1 from EXCH3, connection succesful
4. Did telnet to from EXCH1 to EXCH3 at port 135, successful
5. Did telnet from EXCH3 to EXCH1 at port 135, succesful
4. Did telnet to DAG01 at port 64327 from EXCH3, getting failed.