choppy audio on the up stream

Posts: 2 · New Forum Member Joined: Jul 24, 2007 Posts: 2

Alpharetta Ga. (Atlanta metro)
Comcast cable
up speed 7768K
down speed 8M
Cable Modem - Motorola Surfboard SB5120
Vonage adapter - Linksys WRTG54G
wireless radio is turned off using cables only
Network setup - cable modem -> Vonage adapter -> PC
problem - choppy audio on the up stream, down is fine

this configuration has worked fine for the past year and a half w/no issues
up until 2 or so weeks ago when people started to ask to repeat what I said
I have not experienced a problem hearing what the person on the other end
had said

Speed test statistics
---------------------
Download speed: 10831272 bps
Upload speed: 820752 bps
Quality of service: 68 %
Download test type: socket
Upload test type: socket
Maximum download pause: 38 ms
Average download pause: 2 ms
Minimum round trip time to server: 34 ms
Average round trip time to server: 42 ms

Voip test statistics
--------------------
Jitter: you --> server: 3.5 ms
Jitter: server --> you: 8.5 ms
Packet loss: you --> server: 0.0 %
Packet loss: server --> you: 0.0 %
Packet discards: 0.0 %
Packets out of order: 0.0 %
Number of supported Voip lines: 13
Estimated MOS score: 3.9

Download speed 10831 Kbps (socket test)
Upload speed 820 Kbps (socket test)
Quality of service 68 %
Maximum pause 38 ms
Round trip time 34 ms
Upstream jitter 3.5 ms
Upstream packet loss 0 %
Upstream packet order 100 %
Upstream discards 0 %
Downstream jitter 8.5 ms
Downstream packet loss 0 %

Posts: 2257 · Posted: Wed Jul 25, 2007 8:48 am Post subject:

Your numbers look pretty good, but I'd run some more tests just to see if you have an intermittent issue with the connection.

As a test, disconnect all computers and turn off the wireless on the Vonage adapter and make a few calls. If the problem persists, then the problem is in your Internet connection. If the problem goes away, then chances are your problem is excessive upstream traffic.

Are you using a lot of upstream bandwidth (or even MORE importantly, do you have the wireless portion of your router set as an open network which might allow OTHERS to use a lot of upstream bandwidth)?

Applications that use a lot of upstream bandwidth would include file sharing applications like BitTorrent, Kazaa, etc. Even if you aren't using one, if your wireless network is set to open or encrypted with WEP, there's a possibility that someone else is using your connection.

Also, check your WRTP54G (I assume that's the model you meant) and see what firmware it is running. My WRTP54G works great with the new 5.01.04 firmware, but I'm only using my WRTP54G as a Vonage adapter - I had a lot of trouble using it as a router. Some people have reported problems with the new 5.x firmware, and Vonage will (last I heard) downgrade your router back to the 1.00.62 release if you want them to.

Posts: 2 · New Forum Member Joined: Jul 24, 2007 Posts: 2

thanks for the response,

I don't do P2P or have a lot of outbound traffic and the wireless is turned off on the router and has been so for the last year.

I found a tool here that seems to test the connection a lot better than most of the sites like speakeasy and speedtest

http://www.broadbandspeedtest.net/

after several iteration of the test 5 or so I only had one run that exhibited any packet loss, right now I'm leaning toward it not being my ISP. I'll try your suggestion about disconnecting everything except the adapter