These are the last lines in the access log, there are no errors in the error log:
"
http://10.222.64.253/nagiosxi//includes ... splash.php" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:15 +0000] "GET /nagiosxi/includes/js/dashboards.js?308 HTTP/1.1" 304 - "
http://10.222.64.253/nagiosxi//includes ... splash.php" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:15 +0000] "GET /nagiosxi/includes/js/tables.js?308 HTTP/1.1" 304 - "
http://10.222.64.253/nagiosxi//includes ... splash.php" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:15 +0000] "GET /nagiosxi/includes/js/dashlets.js?308 HTTP/1.1" 304 - "
http://10.222.64.253/nagiosxi//includes ... splash.php" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:15 +0000] "GET /nagiosxi/includes/js/users.js?308 HTTP/1.1" 304 - "
http://10.222.64.253/nagiosxi//includes ... splash.php" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:15 +0000] "GET /nagiosxi/includes/js/perfdata.js?308 HTTP/1.1" 304 - "
http://10.222.64.253/nagiosxi//includes ... splash.php" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:16 +0000] "GET /nagiosxi/includes/css/nagiosxi.css?308 HTTP/1.1" 304 - "
http://10.222.64.253/nagiosxi//includes ... splash.php" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:16 +0000] "GET /nagiosxi/includes/js/wizards.js?308 HTTP/1.1" 304 - "
http://10.222.64.253/nagiosxi//includes ... splash.php" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:16 +0000] "GET /nagiosxi//includes/page-default-splash.php?getfeed=labs HTTP/1.1" 200 156 "
http://10.222.64.253/nagiosxi//includes ... splash.php" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:16 +0000] "GET /nagiosxi//includes/page-default-splash.php?getfeed=xipromo HTTP/1.1" 200 146 "
http://10.222.64.253/nagiosxi//includes ... splash.php" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:16 +0000] "GET /nagiosxi//includes/page-default-splash.php?getfeed=techsupport HTTP/1.1" 200 2624 "
http://10.222.64.253/nagiosxi//includes ... splash.php" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:16 +0000] "GET /nagiosxi//includes/page-default-splash.php?getfeed=library HTTP/1.1" 200 140 "
http://10.222.64.253/nagiosxi//includes ... splash.php" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:19 +0000] "GET /nagiosxi/reports/ HTTP/1.1" 200 18741 "
http://10.222.64.253/nagiosxi/" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:20 +0000] "GET /nagiosxi/includes/js/jquery/jquery-1.8.2.min.js?308 HTTP/1.1" 304 - "
http://10.222.64.253/nagiosxi/reports/" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:20 +0000] "GET /nagiosxi/includes/js/jquery/jquery-ui-1.9.0.custom.min.js?308 HTTP/1.1" 304 - "
http://10.222.64.253/nagiosxi/reports/" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:20 +0000] "GET /nagiosxi/includes/js/jquery/css/smoothness/jquery-ui-1.9.0.custom.min.css?308 HTTP/1.1" 304 - "
http://10.222.64.253/nagiosxi/reports/" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:20 +0000] "GET /nagiosxi/includes/js/core.js?308 HTTP/1.1" 304 - "
http://10.222.64.253/nagiosxi/reports/" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:20 +0000] "GET /nagiosxi/includes/js/commands.js?308 HTTP/1.1" 304 - "
http://10.222.64.253/nagiosxi/reports/" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:20 +0000] "GET /nagiosxi/includes/js/views.js?308 HTTP/1.1" 304 - "
http://10.222.64.253/nagiosxi/reports/" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:20 +0000] "GET /nagiosxi/includes/js/dashboards.js?308 HTTP/1.1" 304 - "
http://10.222.64.253/nagiosxi/reports/" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:20 +0000] "GET /nagiosxi/includes/js/tables.js?308 HTTP/1.1" 304 - "
http://10.222.64.253/nagiosxi/reports/" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:20 +0000] "GET /nagiosxi/includes/js/dashlets.js?308 HTTP/1.1" 304 - "
http://10.222.64.253/nagiosxi/reports/" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:20 +0000] "GET /nagiosxi/includes/js/users.js?308 HTTP/1.1" 304 - "
http://10.222.64.253/nagiosxi/reports/" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:20 +0000] "GET /nagiosxi/includes/js/perfdata.js?308 HTTP/1.1" 304 - "
http://10.222.64.253/nagiosxi/reports/" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:20 +0000] "GET /nagiosxi/includes/js/wizards.js?308 HTTP/1.1" 304 - "
http://10.222.64.253/nagiosxi/reports/" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
172.26.6.154 - - [07/May/2013:16:38:20 +0000] "GET /nagiosxi/includes/css/nagiosxi.css?308 HTTP/1.1" 304 - "
http://10.222.64.253/nagiosxi/reports/" "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0"
It stops at "transferring data" and just stays there indefinitely.