Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I recently upgraded my internet which is advertised to be "5.0 to 25.0 Mbps Download speed" and "Up to 2.5 Mbps Upload speed". After my supposed upgrade I tested my speed on and didn't notice any difference from what I had before. This morning I set about diagnosing where in my network this comes from. At my ISP modem I get the advertised speeds, and before my home WAN/LAN router I get those speeds, but my router seems to be stuck at 15Mbps/1Mbps. It is a fairly old router a "phased out" dlink DIR-615. The specs say that the router has 4 10/100 LAN Ports. What does the "10/100" mean? and do I need to upgrade my router?

share|improve this question
are you connected to the router over wifi? if so, which wifi type (A/B/G/N)? B has a rate of 11Mbps, which is less than your maximum. speedtest works from the host, not the router, so wifi less than G would skew the results. – Frank Thomas Mar 31 '13 at 20:13
up vote 3 down vote accepted

The "10/100" means the ports are 10/100Mbps ports (Megabits Per Second), meaning they'll negotiate at either 10Mbps or 100Mbps, depending on the device attached to the port.

As for your speed differences, it may just be that that router can't route that fast, and you may be out of luck until you get a newer, more capable router.

But there have been reports that changing the WAN port speed to 100Mbps instead of leaving it on "Auto" may help it negotiate speeds with certain modems properly, giving full speed.

The WAN port speed should be adjustable in the "Advanced Network Settings" menu of the router.

share|improve this answer
+1 for setting speed/duplex on both devices manually. Have seen this resolve issues in past even with high endd hardware – Dave M Mar 31 '13 at 21:01
Setting my router to "100Mbps" did the trick. Thanks! – Naddiseo Mar 31 '13 at 22:01

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .