Hi Friends,

I got same problem today for one of our job after resetting password of a windows account. This job to run SSIS package was running fine till we changed the password. After resetting the password we got following error:

Unable to start execution of step 2 (reason: Error authenticating proxy REDMOND\***ADMIN, system error: Logon failure: unknown user name or bad password.).

I never used Proxy before. After some googling & trial & error, we tried changing the password of respective 'credential' [Security -> Credential] of this proxy. 🙂 It worked for us.

Hope my experience helps someone else !!!