Posted:
Mon Mar 02, 2009 8:58 pm Post subject: Very choppy audio with Comcast. New issue, QoS is horrid.
I returned from vacation last week to find my Vonage service is unusable, it was fine prior to vacation. Issue is dropped audio. Sometimes impossible to hear other caller with dropped audio every few seconds. I know it is QoS, but how do you explain that to Comcast?
There where massive thunderstorms while we were gone but everything is surge protected and seems fine.
Any ideas on what to say to Comcast to get them to fix the QoS issue without too much hassle?
Network: Cable Modem --> Vonage Router --> GB Switch --> Wireless AP (Vonage is direct to modem)
Quality of service 25 % Maximum delay 62 ms Round trip time 43 ms Upstream jitter 2.4 ms Upstream packet loss 0 % Upstream packet order 100 % Upstream discards 0 % Downstream jitter 0.5 ms Downstream packet loss 0 % Downstream packet order 100 % Downstream discards 0 %
Posted:
Tue Mar 03, 2009 12:24 pm Post subject: Re: Very choppy audio with Comcast. New issue, QoS is horri
how are you measuring and from where. Since your ATA is first in line after your modem - that is the only place to test from. Connect a PC or laptop directly to the ATA Lan port and try your test from there. www.mycooltools.comVoip quality test. speedtest from www.speakeasy.net atlanta server. options to resolve. Log into your account and move your line from port 1 to port 2 and try your calls. or call tech support and have them do it. Even with ComCast you should be able to get top service at those speeds. Comcast is likely not going to change anything on their end as testing will show nothing wrong. Why would they help you get a competitors digital phone working? bottom line - why do you suspect QOS? if you have qos enabled downstream it will not affect the ATA but will affect your PCs. Enabling QoS and not knowing exactly what settings to use can and will make things worse. Your test results show only that you probably ran it from a wireless connection? What is your AP and why is it after a switch? How many devices are connected to that switch? Other than getting comcast to swap your modem if you bring it in not much they will do lilkely. Do you own the modem or lease?
Ray
EtOH wrote:
I returned from vacation last week to find my Vonage service is unusable, it was fine prior to vacation. Issue is dropped audio. Sometimes impossible to hear other caller with dropped audio every few seconds. I know it is QoS, but how do you explain that to Comcast?
There where massive thunderstorms while we were gone but everything is surge protected and seems fine.
Any ideas on what to say to Comcast to get them to fix the QoS issue without too much hassle?
Network: Cable Modem --> Vonage Router --> GB Switch --> Wireless AP (Vonage is direct to modem)
Quality of service 25 % Maximum delay 62 ms Round trip time 43 ms Upstream jitter 2.4 ms Upstream packet loss 0 % Upstream packet order 100 % Upstream discards 0 % Downstream jitter 0.5 ms Downstream packet loss 0 % Downstream packet order 100 % Downstream discards 0 %
I am guessing QoS because 25% is horrid, everything else is fine.
As to the AP it serves a laptop on the other end of the house, everything else is on the Gb switch. The test was run from a machine that is wired into the Gb switch, not via wireless.
I measured all of this using the vonage-forum tools as directed.
I am guessing QoS because 25% is horrid, everything else is fine.
As to the AP it serves a laptop on the other end of the house, everything else is on the Gb switch. The test was run from a machine that is wired into the Gb switch, not via wireless.
I measured all of this using the vonage-forum tools as directed.
You would have to run from the ATA port to eliminate those devices. [And Comcast will want the test performed directly from the modem. Our cable company will not even talk to you if they ping and see anything but your PC connected to the modem as they do not support routers etc that are not leased from them.] That tools quality of service reading is calcutated off the other tests. QoS and some test's "Quality of Service" reading aren't the same thing exactly.
I would try the test from the Comcast modem and see what you get. QOS is based on a numberof thinks, jitter, delay, incosistent upload/download speeds, etc.
I would try this site for your speed test, for a lot more information:
Perhaps, while you were away you had a power disruption, I would suggest you power everything off and repower in this order. Cable modem>Vonage device>Router>PC
Just like you would during your first install.
Then Test on phone plug into the Vonage port, That will give you a better start test from.
IF you have done that already>then I would suggest adjusting your Qos from your Vonage account online.
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bottom line - why do you suspect QOS? if you have qos enabled downstream it will not affect the ATA but will affect your PCs. Enabling QoS and not knowing exactly what settings to use can and will make things worse. Your test results show only that you probably ran it from a wireless connection? What is your AP and why is it after a switch? How many devices are connected to that switch? Other than getting comcast to swap your modem if you bring it in not much they will do lilkely. Do you own the modem or lease?
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