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GH4STLY

join:2012-11-03
Apex, NC

1 edit

[TWC] Power Levels to modem & Downlink buffer issues

I have been doing some "optimizing" on all of my feed lines. For whatever reason, we had a splitter hooked up to one of them, even though I have an amp and an 8 way splitter connected to the other feed.

Anyways,
I want to make sure that they look alright prior to the changing, and after changing everything.

Before:
(I tried putting this in a spoiler, it didn't work)







After:







I noticed the power levels dropped. And I have disconnected twice in the past 45 minutes on IRC (but that could be due to it timing out, or MTU. Not sure. I need to edit that in case.

Just wanting to make sure everything is working.

What does the feed generally come in power wise at? Because the splitter had a 3.5db on each part.

Part of my test includes also running netalyzer from berkley.

The past couple of tests have been roughly the same:
»n2.netalyzr.icsi.berkeley.edu/su···769-9bb6
»n1.netalyzr.icsi.berkeley.edu/su···eaf-8bf7

It seems to constantly be hitting 1300 ms.

I have tried disabling all networking services (short of cutting off my server to the internet, the only thing on right now is IRC). Just trying to figure out what is causing it as well. Removing the spliter seems to have helped with my uplink buffering, but not with the downlink unfortunately.

scififan68

join:2010-10-02
Fremont, NE

Re: [TWC] Power Levels to modem

My signal is 13dBmV and 36dBmv straight off the drop that comes in, but I have a -7dB leg on a 3 port splitter to pushes that signal up to a better 6dBmV and 43dBmV. I see your upstream is power is low, recommended is around 40dB, which could cause the issues you are seeing. Is the one from after directly connected to the drop cable? This could be congestion, noise or an equipment malfunction. Could you post the log from the modem?

GH4STLY

join:2012-11-03
Apex, NC
The modem is a brand new Ubee modem I received because my other modem (Touchstone Arris) kept dropping out every couple days to a week or so.

Not sure this just happened, but it seems that all the settings got reset on my modem, and it went from bridge mode to NAT mode. Anyways, reset it back to bridge mode, and am trying the tests again. The upstream power is still 37 however.

Log:
First Time Last Time Priority Description
Sat Dec 15 00:07:59 2012 Sat Dec 15 00:07:59 2012 Notice (6) Web user logged in from omit
Sat Dec 15 00:07:17 2012 Sat Dec 15 00:07:17 2012 Notice (6) TLV-11 - unrecognized OID;CM-MAC=omit;CMTS-MAC=0...
Sat Dec 15 00:07:15 2012 Sat Dec 15 00:07:15 2012 Error (4) Missing BP Configuration Setting TLV Type: 17.9;CM-MAC=omit:...
Sat Dec 15 00:07:15 2012 Sat Dec 15 00:07:15 2012 Error (4) Missing BP Configuration Setting TLV Type: 17.8;CM-MAC=omit:...
Time Not Established Time Not Established Warning (5) DHCP WARNING - Non-critical field invalid in response ;CM-MAC...
Sat Dec 15 00:05:50 2012 Sat Dec 15 00:05:50 2012 Notice (6) Web user logged in from 192.168.0.2
Sat Dec 15 00:05:27 2012 Sat Dec 15 00:05:27 2012 Notice (6) web user logged out from 192.168.0.2.
Sat Dec 15 00:04:20 2012 Sat Dec 15 00:04:20 2012 Notice (6) Web user logged in from 192.168.0.2
Fri Dec 14 22:16:45 2012 Fri Dec 14 22:16:45 2012 Notice (6) TLV-11 - unrecognized OID;CM-MAC=omit;CMTS-MAC=0...
Fri Dec 14 22:16:43 2012 Fri Dec 14 22:16:43 2012 Error (4) Missing BP Configuration Setting TLV Type: 17.9;CM-MAC=omit:...
Fri Dec 14 22:16:43 2012 Fri Dec 14 22:16:43 2012 Error (4) Missing BP Configuration Setting TLV Type: 17.8;CM-MAC=omit:...
Time Not Established Time Not Established Warning (5) DHCP WARNING - Non-critical field invalid in response ;CM-MAC...
Fri Dec 14 22:05:02 2012 Fri Dec 14 22:05:02 2012 Notice (6) Web user logged in from 192.168.0.2
Fri Dec 14 22:04:40 2012 Fri Dec 14 22:04:40 2012 Notice (6) TLV-11 - unrecognized OID;CM-MAC=omit;CMTS-MAC=0...
Fri Dec 14 22:04:38 2012 Fri Dec 14 22:04:38 2012 Error (4) Missing BP Configuration Setting TLV Type: 17.9;CM-MAC=omit:...
Fri Dec 14 22:04:38 2012 Fri Dec 14 22:04:38 2012 Error (4) Missing BP Configuration Setting TLV Type: 17.8;CM-MAC=omit:...
Time Not Established Time Not Established Warning (5) DHCP WARNING - Non-critical field invalid in response ;CM-MAC...
Fri Dec 14 21:43:58 2012 Fri Dec 14 21:43:58 2012 Notice (6) TLV-11 - unrecognized OID;CM-MAC=omit;CMTS-MAC=0...
Fri Dec 14 21:43:55 2012 Fri Dec 14 21:43:55 2012 Error (4) Missing BP Configuration Setting TLV Type: 17.9;CM-MAC=omit:...
Fri Dec 14 21:43:55 2012 Fri Dec 14 21:43:55 2012 Error (4) Missing BP Configuration Setting TLV Type: 17.8;CM-MAC=omit:...
Time Not Established Time Not Established Warning (5) DHCP WARNING - Non-critical field invalid in response ;CM-MAC...
Time Not Established Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/Q...
Time Not Established Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC f...
Time Not Established Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/Q...
Time Not Established Time Not Established Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC f...

Unfortunately, it cuts off the entire log message, so that is all I have.