WEMO Devices not Discoverable after Ubuntu Upgrade

I recently upgraded from ubuntu 14.04 to 16.04 LTS and after the upgrade my Wemo devices are no longer discoverable. My Wink devices work still along with a wifi thermostat and some foscam cams, but the Wemo devices are giving problems (5 light switches, and 2 non-insight plugs). Any ideas on how to debug?

UPDATE: turns out after the upgrade, a component was removed. had to reinstall netdisco. this can be done by the following command:

sudo apt-get install netdisco