diff --git a/PVE/API2/ACME.pm b/PVE/API2/ACME.pm
index 0389f373..c7d6e7e9 100644
--- a/PVE/API2/ACME.pm
+++ b/PVE/API2/ACME.pm
@@ -85,19 +85,19 @@ my $order_certificate = sub {
 		    if !defined($data->{url});
 
 		$acme->request_challenge_validation($data->{url});
-		print "Sleeping for 10 seconds\n";
-		sleep 10;
+		print "Sleeping for 5 seconds\n";
+		sleep 5;
 		while (1) {
 		    $auth = $acme->get_authorization($auth_url);
 		    if ($auth->{status} eq 'pending') {
-			print "Status is still 'pending', trying again in 20 seconds\n";
-			sleep 20;
+			print "Status is still 'pending', trying again in 10 seconds\n";
+			sleep 10;
 			next;
 		    } elsif ($auth->{status} eq 'valid') {
 			print "Status is 'valid', domain '$domain' OK!\n";
 			last;
 		    }
-		    die "validating challenge '$auth_url' failed\n";
+		    die "validating challenge '$auth_url' failed - status: $auth->{status}\n";
 		}
 	    };
 	    my $err = $@;