Slow speeds with router, normal without?

[gizbug]

Seems with this new Linksys e3200 router (was happening on my old DLink DIR615) that I would get 30mpbs downloads with comcast (what I pay for) but then a lot of times, speedtests showed 1.50 mbps.

However, if I go from the cable modem directly into the pc, it's always at 30mbps.
Is there a setting in the router that I am missing?

 

[gizbug]

Here are my modem signal info:

About

Model: DPC3000
Vendor: Cisco
Hardware Revision: 2.0
Serial Number: 222132942
MAC Address:: 00:23:BE:74:92:B6
Bootloader Revision: PSPU-Boot 1.0.0.4
Current Software Revision: dpc3000-v303r2391-100729aCMCST
Firmware Name: dpc3000-v303r2391-100729aCMCST.bin
Firmware Build Time: 20100729151242
Cable Modem Status: Operational

Downstream Channels

Power Level Signal to Noise Ratio
Channel 0: 3.4 dBmV 35.4 dBmV
Channel 1: 3.7 dBmV 35.2 dBmV
Channel 2: 4.3 dBmV 35.2 dBmV
Channel 3: 4.7 dBmV 36.0 dBmV

Upstream Channels

Power Level
Channel 0: 45.5 dBmV
Channel 1: 0.0 dBmV
Channel 2: 0.0 dBmV
Channel 3: 0.0 dBmV

 

[mancy]

Hi,

The Internet works slow if you face some router or associated hardware troubles. If your Ethernet connectivity cables are having some issues, you may find a slower Internet connectivity. Also you might face similar issues, if your router hardware encountered an issue or malfunctioned.

 

[Texashiker]

Go to speedguide.net and and run the tcp/ip analyzer test with and without the router in place

http://www.speedguide.net/

Left column - broadband - broadband tools - SG tcp/ip analyzer