So this is just with LDAP users? If you create a manually authenticating user in Moodle and enrol them on the course the problem doesn't occur?
How are you identifying the LDAP server in the Host URL field? By DNS name or IP address? DNS name is better (it's for humans) but if there's a problem with your DNS that could cause slow look-ups (I think this is part of Visvanath's suggestion).
Do you have any enrolment plugins enabled that could be contributing to the delay? E.g. if configured to pull information from a source but the details were wrong that could cause a delay.
If you enable the network trace in your browser, does it show a particular resource that's taking a long time to load. It should also show the exact time resources take to load which, if consistent, may indicate a specific timeout.
Thanks for the Feedback Leon. I have not tried with manually authenticated users. I will set that up and try it.
My LDAP server is identified by DNS name. I will also enable the network trace on my browser to see if that reveals anything.
However, if two LDAP users log in simultaneously there are no performance issues. They are able to breeze through the course with 42 pages and 8 questions in about 6 minutes.
Good Morning Leon. Last Friday, I created 4 test accounts in Moodle that are not LDAP authenticated. Four of our testers logged in simultaneously and began taking the course. Initially things looked promising, but a couple of pages into the course the system slowed to a crawl... again. What is strange is that after about a 45 second to 1 minute slow down, the system sped back up but only temporarily. We were able to advance through the course maybe one or two more pages before slowed down again. All of our moodle cron jobs are scheduled to run once daily at 7:00 a.m. so I don't think that was an issue.
You keep talking about the course, but I suspect the course might actually be a Scorm package? Is that correct? In which case, it could be that you are bottlenecking somewhere in the connection to wherever the scorm is located.
Hi Emma, actually this particular course was not a SCORM package. It was a series of HTML pages we created in Moodle with question pages randomly sprinkled throughout the course. We do however have multiple courses that are SCORM packages.