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[Newguyhi7645]

I had my Dir-655 router for over a year & this is is a first.
My firmware is 1.21 & I only use my router for gaming when I'm not on my PC for home use. I have only one PC in the house that is not shared, I have also not downloaded any virus or maleware.

So the past month I decided to buy a wired ethernet cord to connect to my gaming systems rather than using the wireless option to get an extra bit of speed. That has been working fine up till yesterday when all of a sudden my download speeds dropped from around 20Mb down


to barely 1Mb down (I can't even get the speed test site to fully load anymore). The upload & ping remains unchanged though. Only my Download speed is being affected. This is both when I'm on the PC & when I'm online gaming.

I unplugged my D-Link router & plugged my modem directly to my PC & I got back the 20+Mb speed, so the modem or cable company are not at fault (I even called them to see if there were any problems on there end).

-I tried turning off my Firewall on my PC.
-Resetting & rebooting both my modem/router/PC.
-using different DNS numbers.
-using /flushdns.
-using /Iprenew.
-Messing around with my router configurations such as:
 turning off QoS Engine.
 turning off wireless.
 turned of MAC filtering.
 unchecked "Add DHCP Reservation".
 unchecked SIP.

None of it worked. I'm still browsing at around 56k dial up speed for the past day+!


I read up on the internet for similar problems, but the only solutions I saw was turning off the firewall on the PC, but that hasn't helped me at all.

[FurryNutz]

What speed UP and Down should you be getting from the ISP.

Gaming is preferred over a wired connection. What kind of gaming do you do? PC or console?

What ISP Service do you have? Cable or DSL?
What ISP Modem do you have? Stand Alone or built in router?
What ISP Modem make and model do you have?
If this modem has a built in router, it's best to bridge the modem. Having 2 routers on the same line can cause connection problems.

Some things to try:
Factory reset using the button in back first.
Ensure DNS IP addresses are being filled in under Setup/Internet/Manual? You can find these under Status/Device Info/Wan section.
Turn off ALL QoS (DIR only) GameFuel (DGL only and if ON.) options. Advanced/QoS or Gamefuel.
Turn off Advanced DNS Services if you have this option under Setup/Internet/Manual.
Turn on DNS Relay under Setup/Networking.
Setup DHCP reserved IP addresses for all devices on the router. Setup/Networking
Ensure devices are set to auto obtain an IP address.
Set Firewall settings to Endpoint Independent for TCP and UDP.

What wireless modes are you using?
Try single mode G or mixed G and N?
What security mode are you using? Preferred security is WPA-Personal. WPA2/Auto TPIK and AES.
What wireless devices do you have connected?
Any cordless house phones?
Any other WiFi routers in the area? Use InSSIDer to find out.
Turn off Short GI and Extra Wireless Protection if you have it. Under Advanced/Advanced Wireless.

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 PC while testing.

Check cable between Modem and Router, swap out to be sure. Cat6 is recommended.
Maybe someone can review your router settings with you using teamviewer.

[Newguyhi7645]

Thanks for the tips, I was using some of them & all of a sudden I couldn't connect at all even with my modem. It turns out it was the modem that was at fault. Connecting to a router just seemed to exacerbated the problem.

The cable tech guy came over admitted their companies modem they give out are all refurbished & usually last for only a year+ before they start having problems & dying out.

[FurryNutz]

What ISP service do you have?
If cable, I recommend the Motorola SB 6121 cable modem. DLink has a good DSL modem too, 2600 Series.
If you an have your own, buy it and avoid rental fees too.

[bferrell]

I'm seeing this behavior too, I have the TW RR 30MB down, 5MB up service, and I ALWAYS get this on the wired side of the network, and have (in the past) always gotten it on the wireless too.  Now I occasionally do, but more often than not get under 1MB down, and still get 5 MB upload speeds.  WTF??

Brett