I'm not 100% sure of the issue I'm having but I think it has to do with concurrent downloads of files. Based on my testing I'm pretty sure the issue is with my Westell 327W or with the DSL connection itself, but won't have time to call Verizon for a few days so figured I'd post here for now.
I've had Verizon DSL for about 6 or 7 years now and while it's not amazing, it's been totally fine. In the last few days I've had serious performance issues with my connection, at least in certain scenarios. I'll just list out everything I've seen:
And figured since it can't hurt to post, here are the transceiver stats:
Transceiver Revision: 188.8.131.52
Vendor ID Code: 4
Line Mode: G.DMT Mode
Data Path: Interleaved
Downstream Path Upstream Path
DSL Speed (Kbits/Sec) 3360 224
Margin (dB) 15.0 11.0
Line Attenuation (dB) 35.0 31.5
Transmit Power (dBm) 10.5 11.8
Also remember, if you are uploading too much that will severely impact your downloading. See this link.
It might also just be a simple TCPIP problem, it sounds like it to me at least. The upload is definetly something to consider as well.
So run the TCP Optimizer at http://www.speedguide.net/downloads.php
And if that doesn't help - then isolate some of your equipment and run those transceiver stats again.
Here's some good links to help with that.
Your line is having a noise issue on the upstream. If you have access to your NID, plug the modem into the test jack found inside of the Customer access portion of it and post up the new statisitcs. If the inside wiring is at fault, your upstream should sync at 864kbps. If it doesn't, there's an issue on Verizon's end that should be solved. From there, we'll worry about the issues regarding your download speed.
Thanks for all of the tips. No one aside from me is accessing my Wifi - it's password protected and I checked both routers and I know all of the machines that are connected.
I don't have access to the NID, so the last thing I did was just move the router much closer to the wall jack and swap the phone cable with a new one - and that didn't improve anything.
Got in touch with Verizon on the phone and they're running a line test for the next 24 hours but the woman saw the problem and was just confirming whether it is at the CO or something to do with my outside wiring. I'll wait and hopefully it is fixed soon. Thanks all!