Thank you. My coworker found the fix, by looking at other scripts. 
18c18
< my $ldap = Net::LDAP->new($dc, port => 636, scheme => 'ldaps') or di
+e "$@";
---
> my $ldap = Net::LDAP->new($dc) or die "$@";

[download]
i.e. reduce the parameters to the LDAP constructor. *shrug*

In reply to Re^4: Net::LDAP giving I/O Error by dvl
in thread Net::LDAP giving I/O Error by dvl

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