Hello Spaquette,   3.10.1 added a function where the appliance tasks use the FQDN instead of IP, which should then get routed to the VIP on the network  (See attached image).      If that doesn't work; please call in to Support directly to set up a support case. We would want to write up a business case for this feature.  
Management is sitting in a secure vlan (A) and nat  to  a VIP (B) and reach customer hosts successfullyCustomer host see VIP (B) coming and respond to any inventory job requests. If an update job is request to update firmware, the Customer host try to connect to the native management host IP (A) instead of VIP (B) and surely timed out.This was detected by wireshark on customer sideI guess there is a solution for this? Thank you  
OpenManage Version 3.10.0 (Build 169) behind VPN network cannot update client