Check the following:- Hook up a regular telephone to the phone line and make sure it is operating properly. Call in and confirm that it is ringing the phone.- Change the phone cord going into the unit. It maybe kinked or is causing a short.- Do a simply power off / then back on of the Remote Power Controller using the power switch on the front of the unit. Did the indicator reset ? This will power off the connected devices, so make sure this is acceptable. ). Alternatively, you can reboot the unit itself from remote by going into the OTHER Tab, check off the REBOOT DEVICE option and select save. Again, make sure the connected devices are ready to have their power cycled.- Perform a full reset of the unit to reload the firmware on the RPS device. <span id= ctl00_MPH_PVContent >To reset the RPS-SP4L or RPS-SP8L unit to factory defaults use a paper clip to depress the RESET button located right next to the TEL / LAN Indicator buttons. Press and hold the reset button until the units indicator lights flash and the unit will reboot. Note that once the unit is reset, the configuration values will go to 192.168.1.10, the default IP address. The user name and password will reset to admim. The phone password will return to 123456. Other data should remain unchanged. If you still have access to your unit, you can go into the UPDATE tab and download the remote power switches configuration prior to reset. After the reset, you can upload this file to return to your configuration.