Location of xmlrpc.php and Jetpack

Jetpack can’t connect We recommend reconnecting Jetpack.”

But if I try to reconnect Jetpack I get a page to setup jetpack

I click setup jectpack…. I get a message:
“An error occurred. Please try again”

I have two seperate wordpress blog sites at my domain earth01.net hosted by iPage…

earth01.net/Rambling
earth01.net/CarolConsiders

Note: The domain also has two html sites on it in seperate subdirectories.
I have had a wordpress installations in each of the blog directories for several years (rather inactive, but I want to start using them again.)

If I enter on my browser
https://earth01.net/Rambling/xmlrpc.php it cannot find the file.

But if I enter:
https://earth01.net/Rambling/WPfiles/xmlrpc.php
it returns the required “XML-RPC server accepts POST requests only.”

But apparently Jetpack doesn’t see this and tells me an error occurred.

by the way, I am attempting most of the management via the wordpress dashboard rather than the iPage site which I find confusing. Except for using the ipage file manager.

I am reasonably good a figuring stuff out, but I know very little about php and related stuff. Obviously?