Re: Random disconnections from a Terayon TJ715x cable modem?

On 09/30/2008 07:47 AM, Ant sent:

Snip, snip...

Before you monitor those, perhaps you could tell us what those
instantaneous values are now.

Let us know what you find.

RF Parameters
Parameter Value Units
Tx Power 44.2 dBmV
Rx Power -1.9 dBmV
Downstream SNR 33.4 dB
Downstream MER 32.4 dB
Tx Frequency 33000000 Hz
Rx Frequency 705000000 Hz

Does that looks OK? I can't check it during the quick disconnections
since I can't even connect to the cable modem and even if I could, it
goes too fast. I will check again right after disconnections if I am at
the computer and noticed it. It is hours ago for the last one overnight,
so I will have to wait for the daytime one.

Initially, I wished to know if your cable modem was running on the
ragged edge. However, this does not appear to be the case. When you
think about, try looking at these levels again to see if any significant
deviance shows up. Although the cable modem hasn't been entirely
eliminated from the equation, I would look elsewhere, for now.

My own numbers are -6.3 dBmV & 34.1 dB SNR (downstream) this morning.

For a short time, could you experimentally bypass your router, such that
your Linux system's NIC is directly connected to your Terayon cable
modem?

Do any of your system logs have anything interesting? dmesg? Are you
using the USB port on your modem, or the RJ45 Ethernet connection?

You haven't /yet/ eliminated your cable modem, nor has your ISP's
outside plant been ruled out. But hopefully, you can continue to divide
and conquer.

--
1PW

@?6A62?FEH9:DE=6o2@=]4@> [r4o7t]
.

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