This bug will be fixed in a future version of PAS 2.5 and this article provides two workarounds until this fix is made available.
1. The load balancer or router uses Operations (Ops) Manager generated certificates.
Note: Use this workaround If you Deployed with and Ops Manager generated certificate or have a customer Certificate Authority (CA) installed in Ops Manager.
a. Check the box label "
Include OpsManager Root CA in Trusted Certs" in the
Director Tile >
Security Tab. This will force Ops Manager to instruct BOSH to include the Ops Manager configured CA authority into the Operating Systems trusted CAs.

2. The load balancer or router uses a certification signed by a private authority.
a. Include the Certificate Authority in the Trusted Certificates field located in the
Director Tile >
Security Tab.