RV50 not connecting OpenVPN

In order to spare any future comers a similarly tortuous journey: I solved the issue of the missing Netscape extension by adding

set_var EASYRSA_NS_SUPPORT yes

to easy-rsa’s “vars” file before generating the server certficiate - which now contains

X509v3 Extended Key Usage: 
                TLS Web Server Authentication
            X509v3 Key Usage: 
                Digital Signature, Key Encipherment
            Netscape Comment: 
                Easy-RSA Generated Certificate
            Netscape Cert Type: 
                SSL Server

and thereby satisfies the RV50’s retrograde certificate verification. But really Sierra, get with the ******* programme already. Netscape gone dead long time, and most of their proprietary crap went with them.