Just trying to clarify this message and figured we can rev on a PR quickly.

Old message:
"To create a disconnected multiplexer, disable AbortOnConnectFail."

New message proposal:
"Error connecting right now. To allow this multiplexer to continue retrying until it's able to connect, use abortConnect=false in your connection string or AbortOnConnectFail=false; in your code."

NickCraver linked an issue

that may be closed by this pull request