Make sure the PC & the NTP time server are on the same netwok Time server should be on 192.168.1.96 default Check that the blue FIX led is solid and the PPS is flashing green load 192.168.1.96 on a web browser to check status For Windows: Install d4time521.exe add 192.168.1.96 as a server open advanced settings and check 'use the selected server' -> click ok click OK to sync time Change PC time to either local or UTC depending on requirements For MAC: Go to date and time settings check "set time and date automatically" add 192.168.1.96 as the server change time zone to either local or UTC depending on requirements