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[icemankent]

I have a solution for any of you regarding why your router is not "measuring your uplink speed".

I found this out recently because I just got a new SB6121 Docsis 3.0 cablemodem - one which is capable of connecting to my dgl-4500 router at Gigabit speed.
That is the issue.

My old cablemodem could only connect at 100Mbps, and the router would always "measure my uplink speed" no problem.

Well, now that I am connecting to the router at 1000Mbps, the router simply says "Not Estimated".

This, of course, affects your QoS settings, since QoS is enforced on UPlink only, and if the router has no reference of how much bandwidth it has to play with, then all the QoS rules you set are worthless.

I use Vonage for my home phone.  I was torrenting, etc to drive up my usage of the link as a test.
I found that the quality of the call was bad, even though my QoS setting for the Vonage traffic was the highest priority.
This is what led me to troubleshoot it - as I knew there was a QoS issue somewhere - and the only thing that had changed was the cablemodem, and the speed of the ethernet link between it and the router.

I tested this by changing (in Advanced Network) my WAN port speed from Auto 10/100/1000 (which now was connecting at 1000) - to 100.

As soon as I changed it to 100Mbps, and the router rebooted - well low and behold, the router stated it was measuring the uplink speed - and then upon going into the QoS page - it reported the speed of 1055 Kbps.  (just like it always used to - when I had my other cablemodem that could only connect to my router at 100Mbps).

I tested the router, and my QoS settings with the WAN hard coded to 100Mbps, (and "Automatic Uplink Speed" checked).
I tested the router, and my QoS settings with the WAN set to Auto 10/100/1000, (withOUT "Automatic Uplink Speed" checked) - and a manual entry of 1055 Kbps in the Manual Uplink Speed box.

Both configurations worked equally - and allowed my QoS settings to "work", since the router had an uplink speed "value" to use, now.

I ended up staying with using the manual entry in the Uplink speed box, only because I liked the fact that I was now connecting at Gigabit speed (although in all practicality, I don't need that speed) - but also because the LED on my 6121 glows blue for Gigabit and orange for anything less - and I prefer blue !

I hope this helps my fellow D-link router owners !

[fraggboy]

You are right!!   

I changed my WAN speed to 100Mbps, and enabled Automatic Uplink Speed.  It's now registering at:

Measured Uplink Speed : 2463 kbps

Thank you for sharing this with us.

[XS]

Very odd that it works when it is set to 100 and not when you have the WAN set to auto.  I never use auto uplink anymore since I have speed boost.

These 4500 seem to be very temperamental for everyone...

[FurryNutz]

This seems to be related to DLinks QoS engine and on Uplinks 2Mbs for higher. This has been noted over on the 827 forum. I'll test this out tonight on my 645 and see. This seems to effect all products.
http://forums.dlink.com/index.php?topic=46674.0

[icemankent]

Ahhh yes, I "wish" I had the upload speed that you do (2463 Kbps) !

My ISP has pretty good download speeds, (28Mbps) but we are limited to no more than 1 Mbps upstream.

Hopefully they upgrade the cable system here to someday support the 2.5 Mbps upstream speed that you enjoy !

[FurryNutz]

Ya it's pretty nice. SO I guess you don't see the same issues as we do for uplink measurement. Was going to ask you, did you happen to see this when you had your 857?

[FurryNutz]

Here's what I got using a DGL4500 A1 v1.15 connected to a SB 6180 50down/2up:
WAN Port Speed Setting vs Measured Uplink Speed :
100Mb
2538 kbps
1000Mb
2540 kbps
Auto
2536 kbps

I tested the DIR router out and could not get any thing other than:
"Your broadband Internet connection has surpassed the uplink measurement requirement."
After changing speeds and rebooting.

[icemankent]

When I had the 857 I had my old cablemodem and previous ISP, so I did not have the ability to connect to the router at Gigabit speed.

I noticed that you kept your 4500 at an old firmware level (1.15) whereas mine is at 1.23na.
Funny that at the later revision level the bug of not being able to auto-measure the uplink speed occurs when you have your cablemodem-router link set at 1000 Kbps.

Oh well, at least those of us at 1.23na can either set it to 100Mbps or leave it at auto/1000 and just manually enter what the uplink speed (should) be.
 

[fraggboy]

Oh well, at least those of us at 1.23na can either set it to 100Mbps or leave it at auto/1000 and just manually enter what the uplink speed (should) be.
 

Exactly!!   

[FurryNutz]

I will check to see if this is reproducible on my Rev A2 v1.21 router.

[FurryNutz]

So I loaded my A1 with v1.23NA and tested connected to my SB 6180:


GF after FW load, WAN Port Speed at Automatic:


WAN Port speed at 1000Mb:


WAN Port speed at 100Mb:


WAN Port speed at 10Mb:


WAN Port speed back to Automatic:

[fraggboy]

My 4500 worked like it's supposed to for a while when I received mine with WAN set to auto.  All of a sudden, it changed.  I'm suspecting the change was on the cable end, since I haven't touched the firmware.

[XS]

FYI, my router is A2 a.23NA FW and I never had issues with auto uplink speed with my WAN set to auto or 1000M.

[icemankent]

Well now - it would seem that the plot thickens.

XS:
Even though you set your DGL WAN Port speed as auto 10/100/1000 - how do you "know" that you are actually connecting to it at 1000 Mbps (Gigabit) speed - since the DGL does not tell us what speed it was able to connect at ?

The only way I was able to tell that I was connected at 1Gbps was because my Motorola SB6121 cablemodem has an LED for the Ethernet interface.
When it glows orange, it is 10/100, and when it glows blue, it is 1000.

ALSO VERY IMPORTANT:
You MUST use a Cat 5e or Cat 6 ethernet cable in order to be "able" to connect at 1000 Mbps.
I was connected using a standard Cat 5 cable, and was confused why my DGL and my 6121 would not sync-up at GigE.
(The Eth I/F on my cablemodem would glow orange - not blue).
I changed to a Cat 6 cable and just like magic - it connected at 1000 Mbps - and the LED turned blue.

SO - in your case - unless you "know" (like I am able to know) what speed you are "actually" connected to your cablemodem at - it just "might" be that you are (actually) only connecting at 100Mbps and not 1000Mbps.

These DGL's don't tell us what actual speed they connected at.
Also - what I found is that EVEN if I hard-set the DGL at 1000 Mbps (i.e., not auto 10/100/1000) - if you don't have the right cable - you are ONLY connecting at 100Mbps.

SO, if you are only (really) connecting at 100Mbps, then yes, the DGL "will" measure the Uplink Speed - as it is supposed to - because you are not actually connected at 1000Mbps.

XS, FurryNutz:
Can you guys double-check your cables, and also verify (somehow) if you are truly connecting to the DGL at 1000 Mbps ?
I will assume that your cablemodems actually have a gigabit ethernet port and not just a 10/100 port.

One way or another, I'd like this mystery to be solved.
  

[FurryNutz]

Oh I'm using CAT6 cabing , 1ft between SB 6180 and DGL 4500. For indication on the modem, there manual says that the link light, when flashing Blue, means it's linked at 1000Mb and has activity. When I changed from Auto or 1000Mb to 100 and 10Mb, the link light changed from Blue to Pink or Magenta colored indicating it was not connected at Auto1000Mb or 1000Mb. All 6 series SB modems support Gb speeds and backwards compatible.

I'll connect a Gb switch I have between the modem and router tonight and test the speeds.