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[NoelC]

Hello, first post here.  I created an account to ask this question...

With firmware from several years ago I found connecting into my router's Quick VPN service yielded pretty good connection speeds.  I was happy with the performance.

Now not so much - transfer rates are pretty dismal, actually, much slower than the connections at each end of the connection.

Specifics:

• WAN speeds at the location where my DIR-867 is are 200+ megabits in, 20+ megaibits out.  Call this my "HOME" site.
• WAN speeds at my remote site (i.e., from which the VPN is being connected, call this my "REMOTE" site) are 40 megabits in, 5 megabits out.

Given the above, I would expect to get upwards of 20 megabits downlink speed at the REMOTE site when on the Quick VPN connection to my HOME site.

Troulbe is, at my REMOTE site my download speed, whether measuring from the Internet or another computer on my HOME site LAN, is severely limited to something in the vicinity of 1 megabit/second!  Data transfers flow at just about 100,000 bytes per second.  Uplink speed is a little better, and just about as expected - 4 megabits or so.

https://www.speedtest.net/result/9738367870

I have tried searching through the DIR-867 menus and as far as I can see there are no settings that would affect the connection.  Thing is, before one of the most recent firmware updates the on-VPN speed at the REMOTE site was much better.  I don't have any of the speed test data from back then but I'm sure of what I experienced.

Is this a known issue with the latest firmware?  Is there a setting somewhere I've missed that will limit the throughput?

Thanks for any wisdom you are willing to share.

[FurryNutz]

Has a factory reset and setup from scratch been performed since last update?
IF this results is nothing, revert back to last working FW version...

[NoelC]

Good point,thanks.  I did NOT do a full factory reset and re-setup. 

It should not be unnecessary but as a software engineer myself I do understand the logic in doing so.

FWIW, I just tested the VPN connection speed with my phone.  LTE connection is normally 50 megabits; when on my VPN I see 7 megabits - which is MUCH faster than the 1.something I see from my other Windows workstation, and probably about what I saw before.

There is some kind of complex thing happening here...  My son suggested that maybe my REMOTE site ISP (CenturlyLink) is throttling my encrypted channel traffic in the downlink direction to try to discourage VPN use, as they are no longer bound by law to provide equal service to all protocols.  I admit that this theory fits the observations.

-Noel

[FurryNutz]

Possible remote site could also effect results seen as well.