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Sound high frequency on the modem DPC3925

Hi, I got a modem DPC 3925 and I saw that the modem emits a sound as a mosquito after three or four hours turn on. I turned off the equipment from energy oftentimes, but the sound restart after three or four hours turn on. I don't know if this is a normal behavior, I don't believe. Can anyone help me? Thanks!

Fernando.

2 REPLIES

Sound high frequency on the modem DPC3925

I guess the sound may have something to do with impedance mis match ( radio elements ) . However , elements like capacitor and transistor gates also generate noise.

Bronze

Sound high frequency on the modem DPC3925

Is your dect phone place close to the cable modem, someone did mention that the dect n the wireless are causing some interferences.

If not then go to SH to exchange if still under warranty.

There are not much choice for devices on cable, only cisco DPC3925 n motorola SB6120 support DOCSIS 3.0. SB6120 is just a cable modem and nothing else.

Don't think u can just purchase a cable modem outside and use cos SH have mac address control, u can only use devices from SH as other devices u could not submit the mac address for processing.

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