Please check the following:
1: Verify the management interface is up/up on your switch and the switchport has the correct access port configuration (correct VLAN correlating to the IP/Network you configured on the chassis).
2: Check to see if you can ping the FPR4110 management IP from that network's gateway. This will be a step to verify that the issue isn't a routing issue in your environment preventing you from reaching the management IP from your local machine's IP/network (if this ping from the gateway fails, then its probably an issue localized to the FPR4110 appliance or its direct network access). If the ping works, then check and make sure all routes in your environment exist to direct traffic destined to the FPR4110 management IP from your workstation's IP.
3: Check the 'permitted IPs' configured on the FPR4110. This will be a list of IPs that are allowed to establish management connections to the FPR4110. You can view this from the console by running the following commands:
# scope system
/system# scope services
/system/services# show ip-block
Verify that the IP/network of your desktop/machine is listed and permitted for https. If it is not, then you will want to add this by running the command [ip-address-allow-list add <IP-OR-NETWORK>] and then [commit-buffer].
4: Last thought would be to trace the path through your network and verify routes/ACLs permit the traffic flow.
