diff --git a/lib/Insteon_PLM.pm b/lib/Insteon_PLM.pm
index ba3763603..6339bc543 100644
--- a/lib/Insteon_PLM.pm
+++ b/lib/Insteon_PLM.pm
@@ -626,19 +626,24 @@ sub _parse_data {
 		}
                 elsif ($parsed_prefix eq $prefix{all_link_clean_failed} and ($message_length == 12))
                 { #ALL-Link Cleanup Failure Report
-                        # extract out the pertinent parts of the message for display purposes
-                        # bytes 0-1 - group; 2-7 device address
-                        my $failure_group = substr($message_data,0,2);
-                        my $failure_device = substr($message_data,2,6);
-
-			&::print_log("[Insteon_PLM] DEBUG2: Received all-link cleanup failure from device: "
-                        	. "$failure_device and group: $failure_group") if $main::Debug{insteon} >= 2;
+			if ($self->active_message){
+                        	# extract out the pertinent parts of the message for display purposes
+                        	# bytes 0-1 - group; 2-7 device address
+                        	my $failure_group = substr($message_data,0,2);
+                        	my $failure_device = substr($message_data,2,6);
+
+				&::print_log("[Insteon_PLM] DEBUG2: Received all-link cleanup failure from device: "
+                        		. "$failure_device and group: $failure_group") if $main::Debug{insteon} >= 2;
                         
-                        my $failed_object = &Insteon::get_object($failure_device,'01');
-                        my $message = new Insteon::InsteonMessage('all_link_direct_cleanup', $failed_object, 
-                        	$self->active_message->command, $failure_group);
-                        push(@{$$failed_object{command_stack}}, $message);
-                        $failed_object->_process_command_stack();
+                        	my $failed_object = &Insteon::get_object($failure_device,'01');
+                        	my $message = new Insteon::InsteonMessage('all_link_direct_cleanup', $failed_object, 
+                        		$self->active_message->command, $failure_group);
+                        	push(@{$$failed_object{command_stack}}, $message);
+                        	$failed_object->_process_command_stack();
+			} else {
+				&::print_log("[Insteon_PLM] DEBUG2: Received all-link cleanup failure."
+                        		. " But there is no pending message.") if $main::Debug{insteon} >= 2;
+			}
                         
 		}
                 elsif ($parsed_prefix eq $prefix{all_link_record} and ($message_length == 20))
@@ -681,15 +686,27 @@ sub _parse_data {
                   # so, slow things down
 			if (!($nack_count))
                         {
-				my $nack_delay = ($::config_parms{Insteon_PLM_disable_throttling}) ? 0.3 : 1.0;
-				&::print_log("[Insteon_PLM] DEBUG3: Interface extremely busy. Resending command"
-					. " after delaying for $nack_delay second") if $main::Debug{insteon} >= 3;
-				$self->_set_timeout('xmit',$nack_delay * 1000);
-				$self->active_message->no_hop_increase(1);
-                                $self->retry_active_message();
-				$process_next_command = 0;
+				if ($self->active_message){
+					my $nack_delay = ($::config_parms{Insteon_PLM_disable_throttling}) ? 0.3 : 1.0;
+					&::print_log("[Insteon_PLM] DEBUG3: Interface extremely busy. Resending command"
+						. " after delaying for $nack_delay second") if $main::Debug{insteon} >= 3;
+					$self->_set_timeout('xmit',$nack_delay * 1000);
+					$self->active_message->no_hop_increase(1);
+                                	$self->retry_active_message();
+					$process_next_command = 0;
+				} else {
+					&::print_log("[Insteon_PLM] DEBUG3: Interface extremely busy."
+						. " No message to resend.") if $main::Debug{insteon} >= 3;
+				}
 				$nack_count++;
 			}
+			#Remove the leading NACK bytes and place whatever remains into fragment for next read
+			$parsed_data =~ s/^(15)*//;
+			if ($parsed_data ne ''){
+				$$self{_data_fragment} .= $parsed_data;
+				::print_log("[Insteon_PLM] DEBUG3: Saving parsed data fragment: " 
+					. $parsed_data) if( $main::Debug{insteon} >= 3);
+			}
 		}
                 else
                 {