I’ve followed the instructions for the login time out but we are still getting time outs prompting login within less than the
stated time (currently set to 30 minutes). I’ve evenn tried setting it to never time out, but still we have to re-login after about 20 minutes…. Do you know if there is a further setting somewhere that would over ride this one?
Configuring login expire time for sharepoint site
You need to set the "security validation time-out":
Central Administration > Application Management > Web Application General Settings (be sure to do this for the correct web application)
Ensure that Security Validation is On and set the timeout to 20 min. (default 30 min).
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