In that case you may need to enclose the password in double quote. By default Oracle 10g client will transmit the password in UPPER case. From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Radoulov, Dimitre Sent: Tuesday, September 16, 2014 9:32 AM To: Brian.Zelli@xxxxxxxxxxxxxxx; oracle-l (oracle-l@xxxxxxxxxxxxx) Subject: Re: expired passwords Older Oracle clients on Windows could have some problems connecting to 11g databases: Oracle 10g Client Connecting To Oracle 11g Database Gets ORA-01017 invalid username/password (Doc ID 888432.1) Regards Dimitre On 16/09/2014 15:18, Zelli, Brian wrote: Oracle 11gR2. I reset the passwords for my developers to a temp password and then when they log in, they need to change it. It asks them to enter new password, retype new password but then gives them invalid username and password every time. What am I missing? I've never had this happen before..... Brian This email message may contain legally privileged and/or confidential information. If you are not the intended recipient(s), or the employee or agent responsible for the delivery of this message to the intended recipient(s), you are hereby notified that any disclosure, copying, distribution, or use of this email message is prohibited. If you have received this message in error, please notify the sender immediately by e-mail and delete this email message from your computer. Thank you. TravelClick Privacy Policy This email message and any accompanying attachments may contain confidential information. If you are not the intended recipient, do not read, use, disseminate, distribute or copy this message or attachments. If you have received this message in error, please notify the sender immediately and delete this message. Any views expressed in this message are those of the individual sender, except where the sender expressly, and with authority, states them to be the views of TravelClick. Before opening any attachments, please check them for viruses and defects.