Hallo,
first off, going back to one of the posts, should it turn out that this user is an internal account, please make sure that it will be changed to an external account!! Users should never be internal accounts.
Is this user's password stored in metadata? Double check the user id properties in SASMC.
Even though it is a bit combersome, clear the login & password and just simply retype it.
In the user's EG profile, verify that the user is connection to the right machine, using the correct host, using the correct user ID,
using the correct Authentication domain.
What OS is the Metadata Server running on? (you are in a metadata server env, right?)
If UNIX, maye a PROC PERMTEST might reveal more: http://support.sas.com/kb/39/891.html
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