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Vince6
join:2013-01-08

Vince6

Member

Re: [TWC] Possible problem with new Zoom 5341j

So after spending a little time using the modem it looks like I am still having connection issues. I'm still getting "connection interrupted" while playing a game. A couple things I notice though...the connection seemed to come back quick enough that the game didn't boot me some but not each time. It also seems like it happens every 20 minutes. Maybe it was a coincidence. I'll have to keep track of it for a few days. Any idea what could be happening at 20min intervals?

Here is the signal info for the new modem:

Downstream Bonding Channel Value
Channel ID 1 2 3 4
Frequency 537000000 Hz 543000000 Hz 555000000 Hz 561000000 Hz
Signal to Noise Ratio 38 dB 38 dB 38 dB 38 dB
Downstream Modulation QAM256 QAM256 QAM256 QAM256
Power Level
The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading
-1 dBmV -2 dBmV -2 dBmV -2 dBmV

Upstream Bonding Channel Value
Channel ID 6 5
Frequency 23800000 Hz 19000000 Hz
Ranging Service ID 13836 0
Symbol Rate 5.120 Msym/sec 2.560 Msym/sec
Power Level 45 dBmV 45 dBmV
Upstream Modulation [3] QPSK
[3] 16QAM
[3] QPSK
[2] 16QAM

Ranging Status Success Success

Signal Stats (Codewords) Bonding Channel Value
Channel ID 1 2 3 4
Total Unerrored Codewords 413235493 412694132 412702834 412685580
Total Correctable Codewords 0 76 0 9
Total Uncorrectable Codewords 454 491 503 477
Vince6

Vince6

Member

It seems to be happening more frequently today. I only notice when gaming though. It's so bad today I can't even play. Any ideas?
Radisc359
join:2010-10-02
Fremont, NE

Radisc359

Member

Why is your upstream channels only QAM16? You have a 3.2MHz and a 6.4MHz width upstream channel, I bet noise is causing your modem to degrade your signal to QAM16 possibly packet loss on the upstream, and you have bonded upstream channels which makes things even worse.
Vince6
join:2013-01-08

Vince6

Member

Here are my upstream numbers right now:

Upstream Bonding Channel Value
Channel ID 6 5
Frequency 23800000 Hz 19000000 Hz
Ranging Service ID 14033 0
Symbol Rate 5.120 Msym/sec 2.560 Msym/sec
Power Level 45 dBmV 45 dBmV
Upstream Modulation [3] QPSK
[3] 16QAM
[3] QPSK
[2] 16QAM

Ranging Status Success Success

Is there any way for me to tell if noise is the issue or will I need a tech to come here?
Radisc359
join:2010-10-02
Fremont, NE

Radisc359

Member

Your signal as far as I can tell is fine, but you can't see the upstream SNR, which has to be read as an average at the CMTS. I bet this problem will take a very long time to fix, since it isn't something that can be easily seen by TWC. Not even a house tech can see the upstream SNR, so sending one of those out will just waste time. I guess you can try to call Tier 3 and see what they can do, but I doubt they will do much.

motorola870
join:2008-12-07
Arlington, TX

motorola870

Member

said by Radisc359:

Your signal as far as I can tell is fine, but you can't see the upstream SNR, which has to be read as an average at the CMTS. I bet this problem will take a very long time to fix, since it isn't something that can be easily seen by TWC. Not even a house tech can see the upstream SNR, so sending one of those out will just waste time. I guess you can try to call Tier 3 and see what they can do, but I doubt they will do much.

actually yes a house tech can see the upstream snr they just have to have their spectrum analyzer tool set to the upstream channels if they are programmed into it.
Radisc359
join:2010-10-02
Fremont, NE

Radisc359

Member

Ah nice I did not know that, well it may still be difficult to get the right person to do a spectrum analysis, but that is my experience so far, TWC is hard to actually get to fix issues that aren't apparent to them.
Vince6
join:2013-01-08

Vince6

Member

Last night no problems and tonight it's dropping every few minutes. Do you think if I posted in the TWC direct forum someone might be able to help me?

mackey
Premium Member
join:2007-08-20

mackey

Premium Member

said by Vince6:

Do you think if I posted in the TWC direct forum someone might be able to help me?

One way to find out ^_^

/M
Vince6
join:2013-01-08

Vince6

Member

So after having TWC techs out here twice they are certain it is a problem on my end. After a little more troubleshooting it looks like only the PC that I normally use is going offline. All other devices on teh network seem to be unaffected. I made sure all of my drivers are up to date and even tried using a new ethernet adapter card, but neither helped. I even tried installing linux. No connection drops while running linux. Must be a windows issue.

On a whim I tried connecting the PC to the router(which is how it originally was when the issues started). This made the issue go away! No more dropped connection! Somehow the router is "cleaning up" the signal for lack of a better term. Any ideas what might be going on?

A couple other things I tried were using different DNS servers and also setting a static IP. Neither helped.