sorry for the slow reply.
scurvychef: there are only 2 wireless accesses set up on this computer, my home and my RU access, neither uses VPN or a cloud service as far as I know. I do access a web site (webassign) through RU link to do homework, and was at one point right before this problem started logged into that site on 2 computers (at home) at the same time and linked to the same homework assignment. Didn't appear to cause any problem with the access, and was on that site last night with no problem (from the second laptop that is not experiencing any login problems).
I don't believe this is related to the problem since it did not start happening until a few days later with multiple successful log ins in between.
Response below is from RU FAQ on wireless access:
RUWireless no longer requires a VPN because it was deemed unneccessary since most all central services now require application layer security via SSH and SSL.
narenxp: Yes, here is the exact message that comes up on the desktop:
You have been logged on with a temporary profile. You cannot access your files and files created on this profile will be deleted when you log off. To fix this log off and try logging on later. ...see event log for details...
The Application event log contain these 5 error entries associate with the attempted log in -- in the order they were entered:
Volume Shadow Copy Service error: Unexpected error calling routine ConvertStringSidToSid(... .bak). The security ID structure is invalid.
Window was unable to load the registry. This problem is often caused by insufficient memory or insufficient security rights.
DETAIL - The process cannot access the file because it is being used by another process for \Users\Kevin\ntuser.dat --- I was not able to look at the file with Windows manually either
Windows cannot load the locally stored profile. Possible causes of the error include insufficient security rights of a corrupt local profile
DETAIL - The process cannot access the file because it is being used by another process.
Windows has backed up this use profile. Window will automatically try to use the backup profile the next time this user logs on.
Windows cannot find the local profile and is logging you on with a temporary profile. Changes you make to this profile will be lost when you log off.
Edited by HakaTu, 22 November 2012 - 11:32 AM.