I'm currently running a Linksys 2.4GHz router, model BEFW11S4. I have one wired computer currently plugged into the router, as well as two computers connected wirelessly (desktop and a laptop).

The wired computer -> works perfectly. It is set as DMZ Host right now, because it is used 100% for gaming.

The wireless computers -> Both can surf the web fine, but whenever I try to download a file from Internet Explorer it makes it part way through the download and gives me the message "Connection to the server was reset".

It happens to my laptop even when right next to the router, so I don't think it is interference, or distance issues. I don't have problems when transfering files from one computer to another either, just downloading files from the net.

I had a similar layout in my last home without any sort of problem. Here are some of my router settings:

Firmware: 1.45.10
Wireless: Enable
SSID Broadcast: Enable
Channel: 11
WEP: Disable
WAN Connection Type: Obtain an IP Automatically
DHCP Server: Disable
Block WAN Request: Enable
Multicast Pass Through, IPSec Pass Through, and PPTP Pass Through: Enable
Remote Management: Disable
MTU: Disable
Filter Internet NAT Redirection: Disable
Working Mode: Gateway
--Wireless Settings--
Firmware: 1.1.2
Beacon Interval: 100
RTS Threshold: 1536
Fragmentation Threshold: 2304
DTIM Interval: 1
Basic Rates: 1-2-5.5-11 Mbps
TX Rates: 1-2-5.5-11 Mbps
Preamble Type: Long
Authentication Type: Both
Antenna Selection: Default
Station MAC Filter: Enable

My NIC cards are set to match all fields that apply to a NIC card. Laptop only let's my change the channel though, which is set to 11, of course.

Earlier I was trying to fiddle with MTU. I don't know much about it though, and if I'm not using PPPoE does it affect anything? I asked customer support at Linksys earlier about my downloading problem, and they just told me to change MTU to 1400 (even though I heard 1454 and 1492 were better #s to try) as well as to change my Fragmentation Threshold to 2304, which I had already done beforehand. Either way, nothing I did seemed to work.

Greatly appreciate any help

try enabling the router as a DHCP server. i don't believe you need to use a DMZ. i don't on my router and everyone on my network can still game via internet, as well as transfer files with remote servers.