I'm a GigaPower customer in the Austin, TX area, and I'm seeing some unexpected upload behavior that I'm hoping this community can help with.
Here's the quick version:
1. On all my machines, uploads are generally slower than expected when testing against att.com/speedtest. Downloads consistently max out at 320 Mbps, while uploads usually only hit 150 (sometimes slightly higher, around 180).
2. On one machine in particular (a Dell T20 running Windows Server 2012 R2 Essentials), upload speed is even slower, maxing out at 30 Mbps or so when tested against att.com/speedtest. Strangely, the upload portion of the test will hit 30 Mbps and then slowly degrade to near zero over several seconds, eventually timing out.
Interestingly, when I test against Comcast's Xfinity speed test, which performs both ipv4 and ipv6 tests, the ipv4 test performs normally (maxing out downloads at 320, uploads around 180), but the ipv6 test never completes. The ipv6 test hits 320 for download, and then the download starts to slowly degrade, never completing. It's similar to the "degrading upload" behavior described above. It's also interesting that the Dell T20, which shows the very slow upload issue using ATT's speed test, doesn't show the issue when tested against Comcast's ipv4 speed test; it hits 180, just like my other machines.
As a test, I tried turning off ipv6 on the LAN side of the RVG589 router, but this did not change the upload behavior. Uploads are still slower than expected, generally, and the Dell T20 still shows significantly lower upload speeds and the "degrading upload" behavior.
As far as I know, there is nothing interesting about my network configuration. I'm using the RVG589 in its stock configuration with the exception that I've opened up port 443 for remote access to my server. I've also disabled wireless and HPNA, as I don't use these features, though I can't imagine that's related to this issue.
Any thoughts?
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