The solution to this is the private key has to be in PKCS1 format if you are importing it from an external source. Once this was changed from PKCS8 (starts with -----BEGIN PRIVATE KEY-----)  to PKCS1 (starts with -----BEGIN RSA PRIVATE KEY-----) and the svc_custom_cert script re-ran, the site became accessible.
I installed a custom cert that seemed to apply fine. I can access the Unisphere logon page and log in. From there I get the following error: Proxy Error The proxy server could not handle the request GET /index.html. Reason: Error during SSL Handshake with remote server I tried svc_initial_config and changing the friendly name as I saw a post that said that resets the self-signed cert, but that didn't work.  I rebooted both SPs as well. Any idea how to fix this or how to go back to the self-signed cert?
VNXe3200 - Unisphere error after custom certificate.