Fortigate DC Replication RPC port 135 Session-Helper
Symptom:
DC replication fails between disparate networks.
The Fortigate session helper tries to intercept and control this service
Solution:
con sys session-helper
show
Look for these other two entries
edit 17
set name dcerpc
set protocol 6
set port 135
next
edit 18
set name dcerpc
set protocol 17
set port 135
delete 17
delete 18
end