Help! My parents currently use an USB Modem - I think the 551 L - for their internet access. They have been receiving the following message:
VZ access manager is already running in another user's session
They do not have a wireless router installed.
VZAccess can only connect one user/session at a time. Either your parents did not properly shutdown VZA the last time they used it or the USB Modem is not hanging up its previous connection.
The easiest thing to do would be to reinstall VZA on that computer and see if the problem goes away. Ask your parents to disconnect the Modem before logging off or shutting down the computer to reduce the chance of the problem coming back.