so I have configured ftm-push on branch1
FGT-branch (ftm-push) # get
server-port : 4433
server-cert : Fortinet_Factory
server-ip : 0.0.0.0
server : x.x.x.x - wan ip of the main office fortigate
status : enable
now when I try to login - I get in mobile application push with deny, and allow action but after clicking yes I get an error: "No data from the server. Please contact administrator"
If I need to configure VIP for this traffic now I see a big problem here, because I have four branch office in total and every should be configured with ftm-push, but this is impossible to create four VIP for one incoming port 4433.