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Atl31

@metrocast.net

Downstream Power Levels

Having issues with pages loading slowly...very slowly at times. This is just recent. Here are specifics:

Download: 26.42Mbps
Upload: 2.43Mbps
Ping: 28ms
Jitter: 1ms
Packet Loss: 0

Modem: Motorola SB6121
Router: Netgear Wireless N

Downstream:
STN Ratio: 37dB 38dB 37dB 38dB
Power Levels: 16dBmv 17dBmv 14dBmv 14dBmv

Upstream:
Power Level: 33dBmv

I have a dedicated RG6 line from street box to wall and direct to SB-6121 modem. All recently new.

Just curious as to why things suddenly slowing down. Some pages open fairly quickly, other time I get a blank page or just a banner, etc. If I refresh, then it opens. You would think that with those speedtest & pingtest numbers I would be blazing along.

I am thinking that maybe downstream power levels could be lower?



tenpin784
I Went To The Dark Side?

join:2001-03-30
Brierfield, AL

Technically yes, they could be lower. Your upstream could use a little boost as well.

Easiest way is to put in a splitter, but you would want to terminate the open ports. Not sure if anyone sells in line pads for cable, but a good 10dB will help you out.

Edit: Something like this: »www.amazon.com/10-DB-Attenuator-···tenuator
--
Dream as if you'll live forever, live as if you'll die today.



Disclaimer: These are MY comments, my employer cant be held responsible.



Atl31

@metrocast.net

Just unplug the cable fromt he wall, install this and then connect the cable to it? This should lower DownPowerLevels? How can I improve UpPowerLevel?



tenpin784
I Went To The Dark Side?

join:2001-03-30
Brierfield, AL

Yep. Attenuators make your downstream go down, and your upstream go up.



Atl31

@metrocast.net

I installed the 10db attenuator. Readings, as follows:
Channel ID: 85 86 87 88
Downstream Power: 4 dBmV 4 dBmV 2 dBmV 1 dBmV
Downstream SNR: 37 dB 38 dB 37 dB 37 dB
Upstream Power: 44dBmV

Will see how it works... Thanks for the help!



tenpin784
I Went To The Dark Side?

join:2001-03-30
Brierfield, AL

Much better, now you are actually within spec.

DOCSIS specs are +/- 15dBmV on the downstream, so your downstream was technically out of spec with the actual specification.

Hopefully it does help.

Also, what are you using for DHCP servers?
--
Dream as if you'll live forever, live as if you'll die today.



Disclaimer: These are MY comments, my employer cant be held responsible.



Atl31

@metrocast.net

Address?



tenpin784
I Went To The Dark Side?

join:2001-03-30
Brierfield, AL

My bad, brains going faster than my fingers can type.

What are you using for DNS servers? Just the ones handed out by DHCP?



Atl31

@metrocast.net

Open DNS