qa/1695: better pmproxy startup checks, more diags
qa/1695: better pmproxy startup checks, more diags

Trying really hard to debug this one!

adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp