Thanks All!
+++++
“Firewall?”
Nope, I own it and am behind it…
+++++
“Do you have root access where you could try to login to MySQL directly? Or, via one of the 3rd party programs?”
I can do both! I am using the native MySql utilities and phpMyAdmin.
I have reverted to the old_password hashing and can successfully (locally) log into MySql as the wordpress user. Like I say, this server is using this installation og MySql for another application that work properly. I’m doubting MySql is the issue but won’t rule out anything.
I’m into page 24 (again) of this installation support and am yet to uncover anything…
Thank you!