2k3 IIS 6.0 hosting one website of a CRM app. Client app reporting "cant find www.sitename.com
". Narrowed this down to 401.3 acl and then as of late intermittent change between that error and the 401.1 user/pw issue.
1st time, after not changes/reboot to svr for over 2 wks, client app reports "can't find site". The IIS built in local IUSR_Computername is what's being used for anonymous access. Restarting svr no change, resetting the default guests IUSR pw and reapplying to directory sec of www in IIS didn't help, using vb script to find built in pw and change didn't help, reinstalling IIS fresh didn't work either, finally created another IUSR_madeupID add as part of "USERS" group only then used that for the site in IIS clicking ok. Went back to comp mgnt and changed the ISUR_madeupID to Guests only and site worked. Fix lasted until late/later that day.
Next time I followed same immediate steps above but this time leaving the Iusr_madeupID in the local users group, and restarting IIS, never putting it back to guests only group. Site worked. THis lated until next a.m. when I checked before office hours at 6 a.m
Since behavior keeps occuring and so far I can not truly see a pattern, but yesterday noticed that the IUsr_madupID has NOTHING IN USERS 'MEMBER OF' TAB when site errored out. Now I am no longer clear on what error in IE i'm getting lastly, the 401.3 it's always been or 401.1 that I've seen a couple of times, will be paying closer attention now.
Any input especially on the "members of" screen being cleared out. I'm about to call MS support and pay whatever fee....