If you are using SmartRovers on a regular basis, connecting to Leica’s SmartNet, then please see the link below; you can subscribe (for free) to a text service that will alert you to changes or problems with the network. For example, if the “Main Server” is down, you will receive a text alert to jump onto the “BackUp”.
http://www.leica-geosystems.co.uk/en/68063.htm
http://smartnet.leica-geosystems.co.uk/SpiderWeb/SmartNet/smartnet.html