I can't see any indicators in the logs, but would welcome an opinion.
ian@draco:~$ tail /var/log/apache2/access.log
192.168.11.81 - - [02/Jul/2014:21:08:08 -0400] "GET
/smokeping/images/smokeping.png HTTP/1.1" 404 521
"http://192.168.11.86/cgi-bin/smokeping.cgi"; "Mozilla/5.0 (Windows NT
6.1;
Check the apache logs - that will probably point you in the right direction.
If it turns out, it's a general problem and most people will have it in Ubuntu
14.04, posting follow-up to the list [describing the problem and the
work-around/fix] would be great. I can try to get it into the Wiki/Howt
This is a clean Ubuntu 14.04 64 bit. installed smokeping following
http://heggel4.wordpress.com/2012/10/22/install-and-configure-smokeping-on-ubuntu-12-04-lts/
sudo apt-get install smokeping curl libauthen-radius-perl
libnet-ldap-perl libnet-dns-perl libio-socket-ssl-perl
libnet-telnet-perl libs