We have a user who experiences frequent and random license connection losses when working in Pro/E - PDMLink. Most often, the message indicates that the PDMLink server has gone offline, the user reconnects to the PDMlink server, and all is well. Sometimes, the user receives the message, attempts to reconnect to the PDMlink server, and experiences an app crash. Local workspace cache appears to be fine, plenty of hard drive space. He is running IE 6.0 with Windchill 9.0 M050, have recently read that the recommended IE browser is 7.0, but other users running 6.0 are not experiencing this issue. Have initiated a "constant ping" to his system, just to monitor his network connectivity. Not sure where else to proceed at this point. Any thoughts/suggestions would be welcome.