I everyone,
I know this is not a support site (per say) but I want to ask a “General Question” to see if anyone else has come across a particularly vexing issue I have with a site……………………..
At random times during the day users will be forced to re-authenticate if they are already logged in or as they log in they all get the generic log in screen poppi up three times then they get a blank screen.
In my experience this has always been simple change in the browser settings & yet despite reassurances from the on-site technical team that ALL browser are configured correctly there are still many occasions where users are being prompted to login & the credentials are being rejected & the user gets a blank screen.
I’m fairly sure it’s actually a network issue within the company, or an Active Directory Issue but I am being constantly told by an increasingly irate IT Manager that it has to be SharePoint.
Has anyone else ever had this experience, is there a default timeout for authentication to AD that I don’t know about?
Any ideas of pointers would be greatly appreciated because I am all Googled out of this issue now 🙁
Tia
Hi Jonathan,
Usually the “three logins and blank screen” is associated with the LoopBack Check when looking at the sites FROM the SharePoint server.
What else I would try, even if I am nut 100% sure it’s the problem, is increase the sharepoint timeout delay from IIS manager. It caused me problems in the past on slow envrionments and I couldn’t even create site collections or WebApps. link: http://support.microsoft.com/kb/2543306
Can you make sure that for the users, the zone *.yourdomain.com is either in the intranet zone OR in the trusted zone with custom level (send username and password) , so sharepoint automatically picks up their credentials.
