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Author Topic: DIR-868L WAN port with Gb Fiber ISP  (Read 13450 times)

Austinbike

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DIR-868L WAN port with Gb Fiber ISP
« on: November 23, 2014, 05:52:39 AM »

I have a fiber internet connection to my ISP.  While it is capable of gigabit speeds, I am provisioned at 50Mb/s (with my usage patterns it made no sense to pay the extra for Gb, the performance was no different...)

Originally when they set it up we ran into an issue with the ONT, it was provisioned to only see gigabit connections, so I could plug a notebook in to the ethernet jack on the wall and get an IP, but if I plugged in any router, it would not connect.  They reprovisioned the ONT to auto from Gb only and now any router would get an IP.  It works fine with any computer, or my DIR-655; I am actually getting ~75Mb/s on my 50Mb/s account.  All is good.

EXCEPT that if I plug in the DIR-868L I get only 7-15Mb/s if I set the WAN port to "Auto".  If I try anything from 10Mb through 1000Mb it does not even work (can't get an IP.)  I have tried every firmware rev from 1.04 through 1.09 and none of them has any impact.  Literally nothing changes on the network, I just swap the DIR-655 with the DIR-868L and the speed immediately drops.  I have pinned it down to the WAN connection between the 868L and the ONT, but beyond that I am puzzled.

The reason I care is that inside the network, downloads from my NAS are ~40Mb/s on the DIR-655 and ~80Mb/s on the DIR-868L. 

So literally i have one router that is fast on the outside, slow on the inside and one router that is slow on the outside and fast on the inside. 

Any thoughts on what is going on here? 

I can go set a static IP with a 100Mb or 1000Mb speed and see if that works and if the speed is right, but my ISP uses DHCP and I do not want to set a static IP as I may lose my lease and have to go back and reset periodically.


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FurryNutz

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Re: DIR-868L WAN port with Gb Fiber ISP
« Reply #1 on: November 23, 2014, 10:30:52 AM »

Tried Mac Clone on the router?

I'm getting 50/3 with mine however I'm on Cable ISP here.
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Cable:200mb/10Mb>NetGear C7800>DIR-882>DGS-1100>HP 24pt Gb Switch. COVR-3902/2202/1203,DIR-2680,890L,882,880L,868L,DNR-202L,DNS-345x2,DCS-933L,936L and 960L.
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cable2

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Re: DIR-868L WAN port with Gb Fiber ISP
« Reply #2 on: November 24, 2014, 08:10:14 AM »

Hi,
If cloning the mac id does not get it done, as a work around, you might consider bridging your DIR-655, and then connecting your 868L and seeing if that works for you. (Apparently this is not supported any longer but can be done.)
http://forums.dlink.com/index.php?topic=40856.0
I would also consider looking for a forum from your ISP and seeing if you can glean any information or help on that front.  As a last resort, you might try calling Dlink's support line for whatever country you are in.
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Austinbike

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Re: DIR-868L WAN port with Gb Fiber ISP
« Reply #3 on: November 24, 2014, 10:03:59 AM »

Cloning the MAC did not work.

Setting a static IP for the 868 did not change anything.

I could try putting the 655 in bridge mode in the next few days and see what happens.  Since that time I put the NAS and my main workstation on the same switch (instead of tiering the switches) and that has helped on the 655's internal network speeds.  Since I have A and B rev 655's I may swap them around as well.

Ultimately I have a pretty complicated network setup and too many moving pieces is not making me a happy boy.  I just want stuff to work. 

If I can get the 868 running in bridge mode that doesn't really help me (other than troubleshooting) because I am trying to reduce devices....
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FurryNutz

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Re: DIR-868L WAN port with Gb Fiber ISP
« Reply #4 on: November 24, 2014, 10:07:00 AM »

I would test the 868L out at a different location just as a test to see if you notice the same problem follow. If you have a neighbor, friend or family that you can take the router too and see if the problem follows. If it does, then it needs to be RMAd. If not, then you'll know there is a configuration issue at your location.

  • Link>What Firmware version is currently loaded? Found on the routers web page under status.
  • What region are you located?
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Cable:200mb/10Mb>NetGear C7800>DIR-882>DGS-1100>HP 24pt Gb Switch. COVR-3902/2202/1203,DIR-2680,890L,882,880L,868L,DNR-202L,DNS-345x2,DCS-933L,936L and 960L.
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Austinbike

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Re: DIR-868L WAN port with Gb Fiber ISP
« Reply #5 on: November 24, 2014, 05:57:16 PM »

This has acted the same with every firmware, I started with 1.08, upgraded to 1.09 and then downgraded to 1.04 and 1.07 with exactly the same behavior.

US.

Going to try the bridge mode on the DIR-655 if I can figure out how to do that.
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FurryNutz

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Re: DIR-868L WAN port with Gb Fiber ISP
« Reply #6 on: November 25, 2014, 07:20:21 AM »

What region are you located?
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Cable:200mb/10Mb>NetGear C7800>DIR-882>DGS-1100>HP 24pt Gb Switch. COVR-3902/2202/1203,DIR-2680,890L,882,880L,868L,DNR-202L,DNS-345x2,DCS-933L,936L and 960L.
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Austinbike

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Re: DIR-868L WAN port with Gb Fiber ISP
« Reply #7 on: November 26, 2014, 04:46:01 AM »

US, see prior response ;)
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FurryNutz

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Re: DIR-868L WAN port with Gb Fiber ISP
« Reply #8 on: November 26, 2014, 07:53:32 AM »

What is the Mfr and model # of the ISP modem?

You may want to take it to a different location. If you have a neighbor, friend or family that you can take the router too and rune a quick test. If the problem follows, then you'll know and it needs to be RMAd. If it doesn't, maybe a issue between the router and the ISP modem.
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Cable:200mb/10Mb>NetGear C7800>DIR-882>DGS-1100>HP 24pt Gb Switch. COVR-3902/2202/1203,DIR-2680,890L,882,880L,868L,DNR-202L,DNS-345x2,DCS-933L,936L and 960L.
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Austinbike

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Re: DIR-868L WAN port with Gb Fiber ISP
« Reply #9 on: November 28, 2014, 06:18:07 PM »

It is not a modem, it is an ONT, they don't have modems for fiber.

I will try to take it to another location.

If I stick a plain ethernet switch in front of the router, between the router and the ONT, will that setup work for testing purposes?  I've never tried to put a dumbe switch in front of a WAN port before.
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PacketTracer

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Re: DIR-868L WAN port with Gb Fiber ISP
« Reply #10 on: November 29, 2014, 07:25:24 AM »

Looks like an interoperabilty problem between the ONT and your DIR-868L WAN port affecting auto negotiation and resulting in a duplex mismatch in the worst case. If so, you should see a high rate of dropped packets, collisions and/or errors in the WAN STATISTICS section in the STATUS | STATISTICS web page of your DIR-868L's GUI. Can you check this?

Quote
If I stick a plain ethernet switch in front of the router, between the router and the ONT, will that setup work for testing purposes?  I've never tried to put a dumbe switch in front of a WAN port before.

Quote
... as a work around, you might consider bridging your DIR-655, and then connecting your 868L and seeing if that works for you

If "bridging your DIR-655" just means using two LAN switchports of the DIR-655 one connecting to the ONT and the other one connecting to the WAN port of your DIR-868L (this way reducing your DIR-655 to operate as a switch only), both suggestions are equivalent and might help if the assumed underlying interoperabiltiy problem can be circumvented this way (in that the interswitched switch understands both IEEE 802.3u "dialects" spoken by the ONT and your DIR-868L's WAN port).
« Last Edit: November 29, 2014, 07:55:00 AM by PacketTracer »
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FurryNutz

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Re: DIR-868L WAN port with Gb Fiber ISP
« Reply #11 on: November 29, 2014, 11:20:38 AM »

What is the Mfr and model # of the ISP ONT?


It is not a modem, it is an ONT, they don't have modems for fiber.

I will try to take it to another location.

If I stick a plain ethernet switch in front of the router, between the router and the ONT, will that setup work for testing purposes?  I've never tried to put a dumbe switch in front of a WAN port before.
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Cable:200mb/10Mb>NetGear C7800>DIR-882>DGS-1100>HP 24pt Gb Switch. COVR-3902/2202/1203,DIR-2680,890L,882,880L,868L,DNR-202L,DNS-345x2,DCS-933L,936L and 960L.
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FurryNutz

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Re: DIR-868L WAN port with Gb Fiber ISP
« Reply #12 on: December 18, 2014, 10:45:39 AM »

Any status on this?  ???
It is not a modem, it is an ONT, they don't have modems for fiber.

I will try to take it to another location.

If I stick a plain ethernet switch in front of the router, between the router and the ONT, will that setup work for testing purposes?  I've never tried to put a dumbe switch in front of a WAN port before.
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FrancZ

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Re: DIR-868L WAN port with Gb Fiber ISP
« Reply #13 on: March 21, 2015, 01:23:13 AM »

Hi all,

Did this post ever get to a solution?

I have exactly the same situation here: I "upgraded" from a DIR-655 to a DIR-868l. This vastly improved the performance inside my house, at the cost of my upload speed.

I also have a fiber connection to my ISP. Speed test with my laptop connected straight to the fiber "modem" (Optical Netwerk Terminal) reports 95 Mbps download and 97 Mbps upload. My old DIR-655 managed to keep both speeds well above 80 Mbps. My DIR-868l gets about 80 Mbps in, but does not seem to be able to get more than 17.5 Mbps out.

Setup in my case:
  • Location: Netherlands
  • ONT brand and type: Packetfront DRG546s
  • Laptop brand and type: Asus S301
  • Router: DIR-868l, hardware A1, firmware 1.09 (auto updated)
  • DIR-655 speed information: "historical" data
  • Direct laptop connection and DIR-868l speed information tested last week using Ookla speed test
  • DIR-868l speed measurement performed with only the laptop connected to an ethernet LAN port

I already contacted D-Link support using the Self Service Portal. They suggested to set the WAN connection speed to 100Mbps manually. To me this was a questionable suggestion, for how can I get an 80 Mbps download speed if the Ethernet connection is less than 100Mbps? My ONT does not support Gigabit ethernet, so it makes no sense to do anything else than 100Mbps.
Now, the status of my case is set to "waiting for the customer", but I have no idea what kind of information they are waiting for.

I wonder if anyone has reached a WAN upload speed of more than 20 Mbps through a DIR-868l? Specifications always mention the max. connection speed of a WAN port, but never mention something about the max throughput in both directions.
Can anyone confirm that the DIR-868 should be able to upload 100 Mbps to WAN?

 
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FrancZ

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Re: DIR-868L WAN port with Gb Fiber ISP
« Reply #14 on: March 21, 2015, 03:45:53 AM »

After my previous post, I planned to connect my old DIR-655 inbetween my ONT and my DIR-868l. The idea was that the DIR-655 would take care of negotiating connection speed with the Packetfront, and the DIR-868l would take care of LAN traffic.

In the process of setting up the DIR-655 in a bridge-like function, I noticed a setting in the QOS section that was related to the uplink speed.

This reminded me that I did change the QOS settings in my new router as well (giving priority to a PlayStation). So I checked.
  • In the DIR-655, QOS set-up has a WAN traffic shaping option that measures the uplink speed and uses what is available.
  • In the DIR-868l, QOS set-up is not as extensive. The user must select an uplink speed, and cannot select anything over 20 Mbps.

I disabled QOS, retested for speed with Ookla and got to 91.9 Mbps down and 85.6 Mbps up.

So the limited uplink speed of the DIR-868l is caused by the use of QOS.

DIR-868l owners with ISP's that offer more than 20 Mbps uplink can only prioritize their traffic at the cost of their uplink speed.

I suppose I have to post in another topic to search for solutions for this problem?
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