What to do if Newtec TP210 shows 'No demodulator lock' and the RX LED is off?
- HHannah HughesAug 18, 2025
If the Newtec Modem web interface displays 'No demodulator lock' and the modem LED is red with the RX indicator LED off, it indicates an error in handling the Rx signal, meaning the Rx demodulator cannot lock. To solve this, verify the antenna pointing, ensure the connectivity between the IPmodem and the antenna, and check the configuration of the satellite interface, including frequency, polarisation, and symbol rate.