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Author Topic: dir-865l pppoe NAT speed problem  (Read 15128 times)

TheIceMan

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dir-865l pppoe NAT speed problem
« on: April 02, 2014, 06:01:11 AM »

i just upgrade my internet connection to 1gbit, the connection works fine
with direct cable, but if i use the dlink router i only get routed 250mbit/sec.
i turned off qos and also the firewall to test, the speed is the same.
i tested different firmware from 1.03 to 1.06 the speed is the same.
i the router reviews i found online the tests indicate a 930mbit routing speed.
how can i get the same speed ? please help.

thank you
« Last Edit: April 07, 2014, 01:48:06 AM by TheIceMan »
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FurryNutz

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Re: dir-865l routing speed problem
« Reply #1 on: April 02, 2014, 07:06:47 AM »

  • What region are you located?
  • Are you wired or wireless connected to the router?
  • Was a Factory Reset performed before and after any firmware updates then set up from scratch?
FW Update Process

Internet Service Provider and Modem Configurations
  • What ISP Service do you have? Cable or DSL?
  • What ISP Modem Mfr. and model # do you have?
  • Is ISP Modem/Service using Dynamic or Static WAN IP addressing?
  • What ISP Modem service link speeds UP and Down do you have?
  • Check cable between Modem and Router, swap out to be sure. Link> Cat6 is recommended.
  • Check ISP MTU requirements, Cable is usually 1500, DSL is around 1492 down to 1472. Call the ISP and ask. Link>Checking MTU Values
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TheIceMan

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Re: dir-865l routing speed problem
« Reply #2 on: April 02, 2014, 08:00:27 AM »

there is something wrong with the router, when i start downloading from a ftp site
it starts around 400mbit and then gets down to around 250.
the administration page is not accessible until the download ends.
and other webpage are loading very slowly.
i think the cpu of the router is very busy, how can we fix that ?

i have the mtu now 1492 , should i change it to 1508 ?

lan to lan transfers work fine around 800-900mbit from my nas to my pc.
the cables are okey, i have tested then with lan transfers, they work okey at 1gbit.
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FurryNutz

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Re: dir-865l routing speed problem
« Reply #3 on: April 02, 2014, 08:04:12 AM »

Internet Service Provider and Modem Configurations
  • What ISP Service do you have? Cable or DSL?
  • What ISP Modem Mfr. and model # do you have?
  • Is ISP Modem/Service using Dynamic or Static WAN IP addressing?
  • What ISP Modem service link speeds UP and Down do you have?

Yes try 1500 for the MTU.  I believe thats the max the router will do for MTU. MTU 1500 is max. I'd phone contact your ISP and as them about the MTU value...

Router Placement
Forum User - "Well I feel really dumb. After moving the router away from other electronic devices my speeds are back to normal. Just a heads up for anyone experiencing slow speeds, you might want to move it away from other electronics and see if that helps."
3-6' feet minimum safe distance between devices.

3rd Party Security Software Configurations
  • Turn off all anti virus and firewall programs on PC while testing. 3rd party firewalls are not generally needed when using routers as they are effective on blocking malicious inbound traffic.
  • Turn off all devices accept for one wired LAN PC while testing.
  • Disable any downloading client software managers, i.e. Torrents or similar.


Can you access the admin page using a different PC while the FTP is going on?
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TheIceMan

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Re: dir-865l routing speed problem
« Reply #4 on: April 02, 2014, 08:17:25 AM »

i have a fibre optic connection that ends in my house with a huawei GPON. and from there
a cable direct in the router.

i talked right now to the isp they don't anything about the mtu, so i must test my self
« Last Edit: April 02, 2014, 08:20:23 AM by TheIceMan »
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TheIceMan

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Re: dir-865l routing speed problem
« Reply #5 on: April 02, 2014, 08:18:52 AM »

the maximum value from the mtu is 1492, i can't put anything else
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FurryNutz

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Re: dir-865l routing speed problem
« Reply #6 on: April 02, 2014, 08:24:25 AM »

What region are you located?

  • Was a Factory Reset performed before and after any firmware updates then set up from scratch?
FW Update Process

I recommend that you phone contact your regional D-Link support office and ask for help and information regarding this. We find that phone contact has better immediate results over using email.

Let us know what they say.
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TheIceMan

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Re: dir-865l routing speed problem
« Reply #7 on: April 02, 2014, 09:44:19 AM »

i made a factory reset on the firmware 1.06, and i did the setup again, no change.
i am from romania, where can i find the number to contact the support ?
thank you
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FurryNutz

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Re: dir-865l routing speed problem
« Reply #8 on: April 02, 2014, 10:04:15 AM »

http://www.dlink.com/ro/ro/contact-d-link

Link to your regional support site for this router:
http://www.dlink.com/ro/ro/support/product/dir-865l-cloud-router-5700

I see it has been phased out.  :-\
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TheIceMan

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Re: dir-865l routing speed problem
« Reply #9 on: April 02, 2014, 11:12:50 PM »

i tried call the number from the contact page this morning, its not connected.

i did a reset to factory defaults on firmware 1.05 and now i am getting around 300mb/sec.
but the problem still remains. the router administration page is not accessible on high load.
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FurryNutz

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Re: dir-865l routing speed problem
« Reply #10 on: April 03, 2014, 07:05:35 AM »

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TheIceMan

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Re: dir-865l routing speed problem
« Reply #11 on: April 04, 2014, 12:21:01 AM »

today i've been with the router to an other location that has a 500mbit connection the problems
remain de same, i get around 300mb/sec with 1.05 firmware. i think there is something wrong
with the router, the way it does NAT, does it support hardware NAT ?
if there is something wrong with the firmware who should i email ?

in the weekend i'll make a test been 2 pc and try to test the wan - lan speed my self.
« Last Edit: April 05, 2014, 03:05:04 AM by TheIceMan »
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TheIceMan

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Re: dir-865l routing speed problem
« Reply #12 on: April 05, 2014, 02:21:11 AM »

i think i have the problem that is fixed in this update

Firmware: DIR865LA1_FW100B24.bin Hardware: wrgac01 (bcm4706+bcm4331 11gn + bcm4360 11ac) Date: 2012/06/4

Problems Resolved:

    Patch Broadcom NEW SDK (linux-2.6-router-6.30.39.2001.tar.gz).
    Always set WPA rekey time to 78 hours.(work around rekey fail when endurance test)
   Fix NAT throughput (DHCP ,static IP) is low (300Mbps) after version 1.00b17
    Mydlink account is set once to enter the empty information, "Login" button showing the gray scale on WebGUI
    Fix hping cause device reboot.
« Last Edit: April 05, 2014, 03:04:45 AM by TheIceMan »
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FurryNutz

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Re: dir-865l routing speed problem
« Reply #13 on: April 05, 2014, 10:26:25 AM »

Have you loaded this v1.00B24 to see if it resolves this problem?
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TheIceMan

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Re: dir-865l routing speed problem
« Reply #14 on: April 06, 2014, 03:26:03 AM »

i've made some tests, the NAT problem seems to affect only the pppoe connection.
if i use a static ip for wan with 2 pc the NAT speeds are around 900mbit
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