• July 07, 2022, 12:50:36 AM
  • Welcome, Guest
Please login or register.

Login with username, password and session length
Advanced search  


This Forum Beta is ONLY for registered owners of D-Link products in the USA for which we have created boards at this time.

Author Topic: Capped upload speeds?  (Read 1626 times)


  • Level 1 Member
  • *
  • Posts: 1
Capped upload speeds?
« on: July 16, 2015, 07:49:36 AM »

Greetings everyone!

Just installed a DIR-880L of which there are about 5-10 active devices at a given time. My ISP is Bell in Canada, and I'm on a 50 up / 50 down FTTH connection. I'm finding that any wireless device is capping out at 0.5Mbps upload. Even with only one device connected, the speed is the same. The download speed isn't a problem, typically that's hitting 25-30Mbps which I expect is normal.

I've read that in the past that QoS can cause this capping issue - right now I don't have any of my devices slotted into any priority spots. I did, however, test a device in the 'highest' slot, and came up with the same speed test result.

This was happening on the 1.02 firmware as well as after I upgraded to 1.04.

Would anyone know what might be causing this? Is there a way to disable QoS entirely? Thanks in advance for your help!


  • Poweruser
  •   ▲
    ▲ ▲
  • *****
  • Posts: 49916
  • D-Link Global Forum Moderator
    • Router Troubleshooting
Re: Capped upload speeds?
« Reply #1 on: July 16, 2015, 08:06:44 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? Link> Speed Testing Sites
  • By-pass the main host router and check internet connection by connecting a wired LAN PC directly to the ISP modem to verify connection access and ISP speeds.
  • 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

Are you wired or wireless connected to the router? Do wired PCs exhibit the same problem?
Is Smart Connect enabled?
« Last Edit: July 16, 2015, 10:17:00 AM by FurryNutz »
Cable: 1Gb/50Mb>NetGear CM1200>DIR-882>HP 24pt Gb Switch. COVR-1202/2202/3902,DIR-2660/80,3xDGL-4500s,DIR-LX1870,857,835,827,815,890L,880L,868L,836L,810L,685,657,3x655s,645,628,601,DNR-202L,DNS-345,DCS-933L,936L,960L and 8000LH.