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The Graveyard - Products No Longer Supported => Routers => DIR-880L => Topic started by: ryex on February 20, 2016, 09:12:12 AM

Title: Slow wired connection
Post by: ryex on February 20, 2016, 09:12:12 AM
I have been scouring through the forums since last night, and I have an issue I cant seem to solve.

When I direct connect my computer to the router (tried different ports) my speeds get super throttled, as in 3-5 Mbps download and 0.04 upload on various speed tests. Wifi works on my laptop, another desktop gets full speeds, so I'm unsure of what the issue is. When the computer is directly connected to the modem I get download speeds close to 200 Mbps.

QoS doesn't have anything assigned to it.  Router is on the latests firmware (according to the self updater) 1.05ww, did a factory reset twice, Using all the latests cords and tried changing cords.
My ISP is Cox
Modem is a Netgear CM600

interestingly enough, last night I tried using a mac spoofer (Tmac) and I got full speeds. When I booted my PC up today though, speeds dropped back down. Tried spoofing and restoring mac multiple times, still slow speeds.
Title: Re: Slow wired connection
Post by: FurryNutz on February 20, 2016, 09:20:36 AM
Link>Welcome! (http://forums.dlink.com/index.php?topic=48135.0)

  Link> >FW Update Process (http://forums.dlink.com/index.php?topic=42457.0)

What speed test site are you using?
http://forums.dlink.com/index.php?topic=48352.0 (http://forums.dlink.com/index.php?topic=48352.0)

Internet Service Provider and Modem Configurations

Router and Wired Configurations
Some things to try: - Log into the routers web page at 192.168.0.1. Use IE, Opera or FF to manage the router. Be sure to log into the Admin account on the router.


Title: Re: Slow wired connection
Post by: ryex on February 20, 2016, 09:55:38 AM
Located in North America,
Factory reset was performed before the most recent flashing of the D-link firmware on the d-link support site.

Nothing has been touched on the QoS page.

I have not tried disabling all other components, I will do a factory reset again, and try that.

Was using cox's speed tester, Speedof.me, and speedtest.net

MTU is set to auto, router works fine for all devices with exception to my main PC

router tries to auto set up dynamic IP, manually set static IP (no change)

DNS Relay enabled, will disable and report back.

Will set IPv6 to Local only.

uPnP and multi cast enabled.

Wan port speed set to 1000Mb


Thanks, I'll run through all of this and get back with you.
Title: Re: Slow wired connection
Post by: FurryNutz on February 20, 2016, 10:06:04 AM
So only one PC is effected? Other wired PCs not effected?
Title: Re: Slow wired connection
Post by: ryex on February 20, 2016, 10:09:21 AM
So only one PC is effected? Other wired PCs not effected?
Yes, just one the one PC; however, when plugged directly into the modem I get full speeds. Which I would think rules out the ethernet cable and the ethernet card it uses.
Tried following the things I missed in the previous post. No change. I will try changing ethernet cords and try different slots on the router.
Title: Re: Slow wired connection
Post by: FurryNutz on February 20, 2016, 10:24:06 AM
What platform is this one PC using? If other PCs are working, then possible this one PC has the issue.
Title: Re: Slow wired connection
Post by: ryex on February 20, 2016, 10:34:57 AM
What platform is this one PC using? If other PCs are working, then possible this one PC has the issue.
Both wired PCs are using windows 7 x64.
Tried doing a 30/30/30 and even went to the system restore page and uploaded the newest firmware. Issue still persists.
Went into windows adapters and changed from automatic IP assign and DNS to manual, input correct data, issue still persists.

I'm quickly running out of ideas to try.
Title: Re: Slow wired connection
Post by: FurryNutz on February 20, 2016, 10:40:06 AM
So one Windows 7 works and one does?
That is the Mfr of the network adapter on the one effected PC? Drivers all up to date?
This a desktop PC or Laptop?
Title: Re: Slow wired connection
Post by: ryex on February 20, 2016, 10:48:39 AM
The current connected devices are two windows 7(x64) Desktops, one Windows 8.1(x64) Laptop.
The laptop and one desktop get full speeds (150Mbps+) the desktop I used to set the router up does not get full speeds.
I think it has something to do with when I first set up the router, I included QoS for this computer. Like it never removed this computer from being registered from QoS despite the numerous system restores.
Title: Re: Slow wired connection
Post by: FurryNutz on February 20, 2016, 10:55:42 AM
What is the Mfr of the network adapter on the one effected PC?
You might remove the drivers and uninstall the adapter on the one PC, then reinstall the drivers for it. Do this with the LAN cable disconnected then connect after the drivers are re-installed and a full reboot is performed on the PC.
Be sure any PC security software is disabled while speed testing.

If you have done a factory reset on the router then all configurations have been erased and nothing is kept in QoS. If the other PCs work and one doesn't then there maybe a problem with it's adapter possibly and maybe coincidental that the problem appeared for unknown reasons. Any chance you happen to have a spare PCI network adapter card to test with. Might be a valuable test to see if a different network adapter card works differently.

If other PCs are working and one isn't, I would look into the PC..


Title: Re: Slow wired connection
Post by: ryex on February 20, 2016, 11:16:44 AM
I removed the drivers, reset the pc, installed drivers still no dice.
The adapter is an Intel.
Title: Re: Slow wired connection
Post by: FurryNutz on February 20, 2016, 11:18:36 AM
What is the Mfr of the adapter on the other PC that works?
And you did swap cables and LAN ports?
Title: Re: Slow wired connection
Post by: ryex on February 20, 2016, 11:48:16 AM
What is the Mfr of the adapter on the other PC that works?
And you did swap cables and LAN ports?
They are both intel. My roomate and I both have Asus motherboards.
I did swap cables. All four ports even.
Title: Re: Slow wired connection
Post by: FurryNutz on February 20, 2016, 11:53:04 AM
So is both Asus boards effected or only one?

Only other think I might try is to use a good working PC, download the FW file. Disconnect all other wireless and LAN accept for the one PC. Factory reset the router using the UI, manually upload the FW file, factory reset once more then set up from scratch and walk thru the set up wizard. Test the speeds. If the one PC is still effected, seems to be something with this one PC. Might try another 880L if you got this at a local store.
Title: Re: Slow wired connection
Post by: ryex on February 20, 2016, 01:19:20 PM
So is both Asus boards effected or only one?

Only other think I might try is to use a good working PC, download the FW file. Disconnect all other wireless and LAN accept for the one PC. Factory reset the router using the UI, manually upload the FW file, factory reset once more then set up from scratch and walk thru the set up wizard. Test the speeds. If the one PC is still effected, seems to be something with this one PC. Might try another 880L if you got this at a local store.
Yeah only my pc is affected, my roomates (also ASUS mobo) is fine.
The only other thing I can think of doing, is setting up my old router as a bridge and see if it still thinks my computer should have slow speeds.
Title: Re: Slow wired connection
Post by: ryex on February 20, 2016, 02:13:47 PM
So I turned my old Buffalo router into a bridge, and I get download speeds of around 130Mbps (out of the max 250 ish with no router)
So whatever the issue is, the router refuses to play nice with my computer.
What setting or issue could there be for a router to not like the computer specifically? Would computer naming/mac address conflict cause this issue?
Title: Re: Slow wired connection
Post by: FurryNutz on February 20, 2016, 04:26:35 PM
Seems like something on the one PC is possibly causing the issue.

I would do the factory reset the router, manual load of FW, reset again from the good working PC. When this is going on, be sure to do a Ipconfig /release then ipconfig /flushdns from a command line on the effected PC. Then completely disconnect the PC from the power outlet to be sure that all power drains from the PC for at least 5 minutes and disconnect the LAN cable from the PC. After the router has been re-flashed and setup from scratch and 5 minutes has passed with the PC being fully disconnected from the wall outlet, power ON the PC, reconnect the LAN cable and check the IP address on the PC to see if the address changed. It should have a new IP address and be different.

Test. If the PC still fails and all others work, something on the PC or the adapter with this one PC needs to be looked at. I would get a 2ndary NIC and installed it, try something with a broadcom chipset and test.

Title: Re: Slow wired connection
Post by: ryex on February 20, 2016, 11:29:35 PM
Seems like something on the one PC is possibly causing the issue.

I would do the factory reset the router, manual load of FW, reset again from the good working PC. When this is going on, be sure to do a Ipconfig /release then ipconfig /flushdns from a command line on the effected PC. Then completely disconnect the PC from the power outlet to be sure that all power drains from the PC for at least 5 minutes and disconnect the LAN cable from the PC. After the router has been re-flashed and setup from scratch and 5 minutes has passed with the PC being fully disconnected from the wall outlet, power ON the PC, reconnect the LAN cable and check the IP address on the PC to see if the address changed. It should have a new IP address and be different.

Test. If the PC still fails and all others work, something on the PC or the adapter with this one PC needs to be looked at. I would get a 2ndary NIC and installed it, try something with a broadcom chipset and test.
Turns out under services on the computer I had a microsoft QoS thing installed, deleting that helped return at least some download speed and upload speed. That said I still get better speeds using the router as a bridge. I might just have to stick with that solution for now, until I can think of other things that might affect the pc.

Thank you for the help nutz.
Title: Re: Slow wired connection
Post by: FurryNutz on February 21, 2016, 09:54:38 AM
Sounds like your getting there. Something on the PC seems to be effecting what your seeing. Hope it works out for you.

Good Luck.
Title: Re: Slow wired connection
Post by: RYAT3 on February 21, 2016, 10:18:23 PM
Seems like something on the one PC is possibly causing the issue.

I would do the factory reset the router, manual load of FW, reset again from the good working PC. When this is going on, be sure to do a Ipconfig /release then ipconfig /flushdns from a command line on the effected PC. Then completely disconnect the PC from the power outlet to be sure that all power drains from the PC for at least 5 minutes and disconnect the LAN cable from the PC. After the router has been re-flashed and setup from scratch and 5 minutes has passed with the PC being fully disconnected from the wall outlet, power ON the PC, reconnect the LAN cable and check the IP address on the PC to see if the address changed. It should have a new IP address and be different.

Test. If the PC still fails and all others work, something on the PC or the adapter with this one PC needs to be looked at. I would get a 2ndary NIC and installed it, try something with a broadcom chipset and test.
Turns out under services on the computer I had a microsoft QoS thing installed, deleting that helped return at least some download speed and upload speed. That said I still get better speeds using the router as a bridge. I might just have to stick with that solution for now, until I can think of other things that might affect the pc.

Thank you for the help nutz.

I had a laptop that refused to play nice when wired.  I found some setting to change that was pretty deep and all is well. the upload speed wired was what you had experienced....  HORRIBLE...

I was reading **** like this:   http://www.techpowerup.com/forums/threads/guide-turn-your-killer-e2200-nic-into-qualcomm-atheros-ar8161.198899/ (http://www.techpowerup.com/forums/threads/guide-turn-your-killer-e2200-nic-into-qualcomm-atheros-ar8161.198899/)

Title: Re: Slow wired connection
Post by: FurryNutz on February 22, 2016, 06:34:48 AM
Thanks for the feedback RYAT. Seems like there is a NIC configuration on this one PC that was hanging it up. Seen various issues with NICs over the years. I usually leave NIC configurations at default unless something comes up that's specific. NICs and configurations don't usually need any kind of configuration.