Readycloud sinc. with 2 PC

Does anyone have experience with synchronizing 2 PC with 1 NAS 424 server?

It works well for 1 account, now I want to synchronize the 2nd PC with only one of the 2 shares but I can't get it done. I also don't see the share in my 2nd readycloud account. I received an email with "has invited you to access and share files via ReadyCLOUD" but cannot access the share. Someone perhaps has tips / ideas / experience with this?