Running Sparky 3.3-64 Mate. After doing update via apt-get install upgrade and/or apt-get dist-upgrade I lost the network manager and eth0 connection.
Problem fixed by doing upgrade either way and reinstalling network-manager via synaptic BEFORE rebooting. During reinstall of network-manager via synaptic, message warned of conflict between network-manager and modem-manager. The later was deleted during the reinstall of network-manager.
Sparky is installed on a 64Gb Crucial SSD running on an I3-4340 processor with 8Gb of memory on a ASRock Z87 extreme 4 MB.