InterVlan Routing - EMC N3200

We have recently upgraded all our switches and networking equipment in our HQ office, and have been moving our call center over to the new networking equipment. The buildings are across the street from each other. Basic setup:

Basic Diagram

Our issue is that we need VLAN5 to be able to access 2 servers on the server subnet. However, the endpoints (laptops on VLAN5 at call center and servers on subnet) can't ping each other. They can however ping the different vlan addresses on the switches, no matter where they are located. I've tried setting up PBR and static routes, but can't seem to find the combination of things that would ensure traffic from 10.100.100.0 /24 network meant for a server (10.10.0.0/24) can get to the server, but all other traffic goes out the 420CCFW to the internet.

FYI:

420-SW, Basement-SW, and SRVR-SW are N3248TE-ON switches, and the CoreSw is S4112T.

Will take any suggestions. Thanks in advance.