--- Slim/Networking/Async/HTTP.pm.original	2017-05-11 17:22:28.000000000 +0100
+++ Slim/Networking/Async/HTTP.pm	2017-05-11 17:16:03.000000000 +0100
@@ -84,7 +84,23 @@
 	# Create SSL socket if URI is https
 	if ( $self->request->uri->scheme eq 'https' ) {
 		if ( hasSSL() ) {
-			return Slim::Networking::Async::Socket::HTTPS->new( @_ );
+			# We increasingly find servers *requiring* use of the SNI extension to TLS.
+			# IO::Socket::SSL supports this and, in combination with the Net:HTTPS 'front-end',
+			# will default to using a server name (PeerAddr || Host || PeerHost). But this will fail
+			# if PeerAddr has been set to, say, IPv4 or IPv6 address form. And LMS does that through
+			# DNS lookup.
+			# So we will probably need to explicitly set "SSL_hostname" if we are to succeed with such
+			# a server.
+
+			# First, try without explicit SNI, so we don't inadvertently break anything. 
+			# (This is the 'old' behaviour.) (Probably overly conservative.)
+			my $sock = Slim::Networking::Async::Socket::HTTPS->new( @_ );
+			return $sock if $sock;
+
+			# Failed. Try again with an explicit SNI.
+			my %args = @_;
+			$args{SSL_hostname} = $args{Host};
+			return Slim::Networking::Async::Socket::HTTPS->new( %args );
 		}
 		else {
 			# change the request to port 80