Had cron working on original installation of ubuntu 16.04, upon upgrade to 3.1.1 about 2 weeks or so ago and cron stopped working after the update. Try to troubleshoot but got nowhere, today I found that I needed to update to 3.1.9 and I was hoping it would fix the problem but no joy. I see the file in /etc/cron.d and it looks ok. I created a new cron to run a few minutes ahead but nothing. cron logs are empty, I have no indication if it is running or not. I have rebooted the server and restarted cron. where else can i look? btw it sure would be nice if the date is also part of the error log when it runs. here is what I see in the file below many thanks for the help. root@nccu:/var/www/xxxx.net# cat /etc/cron.d/ispc_web4 MAILTO='' SHELL='/bin/sh' 30 7 * * * web4 /usr/bin/wget --user-agent='Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:47.0) Gecko/20100101 Firefox/47.0' -q -t 1 -T 7200 -O /var/www/clients/client3/web4/private/cron_wget.log 'http://www.xxxc.net/cgi-bin/qbwebtimer/gps-cron.php' >>/var/www/clients/client3/web4/private/cron.log 2>>/var/www/clients/client3/web4/private/cron_error.log #xxx.net 28 7 * * 1-5 web4 /usr/bin/wget --user-agent='Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:47.0) Gecko/20100101 Firefox/47.0' -q -t 1 -T 7200 -O /var/www/clients/client3/web4/private/cron_wget.log 'http://www.xxx.net/cgi-bin/qbwebtimer/list-open-tickets.php' >>/var/www/clients/client3/web4/private/cron.log 2>>/var/www/clients/client3/web4/private/cron_error.log #xxx.net 27 7 * * 1-5 web4 /usr/bin/wget --user-agent='Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:47.0) Gecko/20100101 Firefox/47.0' -q -t 1 -T 7200 -O /var/www/clients/client3/web4/private/cron_wget.log 'http://www.xxx.net/cgi-bin/qbwebtimer/list-todo-tickets.php' >>/var/www/clients/client3/web4/private/cron.log 2>>/var/www/clients/client3/web4/private/cron_error.log #xxx.net 40 20 * * * web4 /usr/bin/wget --user-agent='Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:47.0) Gecko/20100101 Firefox/47.0' -q -t 1 -T 7200 -O /var/www/clients/client3/web4/private/cron_wget.log 'http://www.xxx.net/cgi-bin/qbwebtimer/list-open-tickets.php' >>/var/www/clients/client3/web4/private/cron.log 2>>/var/www/clients/client3/web4/private/cron_error.log #xxx.net