Error Client Does Not Support Authentication Protocol RequestedBy Server; Consider Upgrading MySQL Client For a long time, I haven't upgraded my mysql. I didn't think I just upgraded. Then I checked it. I checked it. I was this mysql 4.1 and Uses AN. Authentication Protocol Based ON A Password Hashing Algorithm That IS Incompatible with That Used by Older Clients. ...... Use one of the following two methods one: mysql> set password for-> 'some_user' @ 'Some_host' = Old_Password ('newpwd'); 2: mysql> update mysql.user set password = Old_password ('newpwd') -> where host = 'some_host' and user = 'some_user'; mysql> flush privilege
