The below script has been working well for over a year, but 3 weeks ago something changed on the networks side which is now causing the script fail due to network timeouts. Can anyone suggest a way to make this script more robust?

#!/usr/bin/perl
# SNMP reset tool
#use strict;
$SIG{PIPE} = sub { print "Ignoring SIGPIPE\n"; }; 
chdir("/home/ossutils/snmpreset");
#Read arguments
$input = @ARGV[0];
#set up report file
$result = `date '+%Y%d%m%H%M%S'`;
chomp($result);
$result = "snmpreset-$result.log";
open(REPORT, ">>$result");
#Open sockets
use IO::Socket;
#get last log file
@lsout = `ls -1tr /u01/appl/bea/logs/log01_*`;
print "DONE FIRST LIST\n";
$cnt = scalar(@lsout);
$inlog = (@lsout[($cnt - 1)]);
open(INPUT, "$inlog");
print "start init read\n";
while (<INPUT>) {;}
INPUT -> clearerr();
print "done with initial read\n";
print "start endless look\n";
for (;;) {
        while (<INPUT>) { 
                if ($_ =~ m/Reboot Device with MAC address/) {
                        $mac = $_;
                        $mac =~ s/^.*address: //g;
                        $mac =~ s/ Thread.*//g; 
                        $mac1 = $mac;
                        $sock = new IO::Socket::INET(
                                           PeerAddr => 'IP1',
                                           PeerPort => '5000',
                                           Proto    => 'tcp',
                                           );
                        $sock1 = new IO::Socket::INET(
                                           PeerAddr => 'IP2',
                                           PeerPort => '5555',
                                           Proto    => 'tcp',
                                           );
                        $sock or next; #or print "no socket :$!";
                        print $sock "$mac";
                        print $sock1 "$mac1";
                        close $sock;
                        close $sock1;
                        $tm = `date '+%Y%d%m%H%M%S'`;
                        chomp($tm);
                        chomp($mac);
                        chomp($mac1);
                        print REPORT "$tm - $mac reset request sent\n"
+;
                        print REPORT "$tm - $mac1 reset request sent\n
+";
                }
        }
        @lsout = `ls -1tr /u01/appl/bea/logs/log01_*`;
        $cnt = scalar(@lsout);
        $inlogb = (@lsout[($cnt - 1)]);
        if ($inlog ne $inlogb) {
                close(INPUT);
                open(INPUT, "$inlogb");
                $inlog = $inlogb;
        }
        INPUT -> clearerr();
}       
print "Terminating incorrectly\n";
close(INPUT);
close(REPORT);
exit;
[download]

Thanks :)