Dell XPS Desktop with wireless adapter will not communicate with the Internet. Signal strength excellent, no communication. Laptop with wireless works fine in same physical location. Linksys unable to provide solution. Ping of machine DNS successful as well as loop-back ping. Could there be an Internet setting issue? Running XP Pro SP2

Reload drivers.

Try reseting the wireless router, theres a reset button hold it down for 30 seconds.

Wireless communication issues could be due to wireless signal quality, signal interference, firewall, etc. Make sure your printer is positioned where it receives excellent wireless signal strength (avoid physical obstructions whenever possible) and away from appliances which emit wireless signals (e.g. microwave ovens, cordless telephones, baby monitors, and other wireless electronics) that may cause interference. Make sure to allow full access to all Lexmark software and printer communication processes in the program rules/permissions for your firewall.

You may also refer to these articles from the Lexmark website to identify and rectify this problem:

- Wireless & Network Communication Issues with 2008 Lexmark Inkjet Products

- How to identify a Wireless Communication Problem and Resolution Tips

I hope this helps.

Given that you have a '802.11B' device, the maximum speed will be 11 Mbps.

While your wireless router is communicating at that speed to your computer, the router is communicating with your ISP at a much-lower speed, depending on how much you pay per month to your ISP for the agreed-upon level of service, e.g., "ADSL-lite" or "High-Speed".

So, unless you pay more per month to your ISP, the "bottleneck" will be between your ISP and your router, *NOT* between your router and your wireless adapter.

Now, as to the "low signal strength", that's a matter of the distance between the router and your computer, and the number and composition of the walls and ceilings in the middle.

If you move your computer closer to the router, the signal-strength should become "good" or "excellent".

Even if it's a new Dell, you may need to update either the drivers for the wireless card or the BIOS.

Also, verify which protocol your Dell is set to use (i.e. 802.11g, 802.11b, auto-select, etc.). Dell may have fixed to to a slower protocol for compatibility.

Refresh the network list from WZC and check if the network exists. Check the signal strength from the utility. check for any interference. Try using a different channel . As a last step try upgrading the drivers.

So, what kind of wireless card or adapter on your computer/laptop?

are you sure you got the right drivers?

http://support.dlink.com/downloads/

Use that webpage to find the newest drivers for your card.

There are several problems reported that may cause disconnection. First is the hiding of the SSID (wireless network name) and enabling WEP or WPA encryption. The recommended solution for that is to unhide the SSID in the router configuration.

Second is that there are more and more wireless devices and occasionally interference occurs on a single channel (even from non computer devices like wireless phones. As routers are often set to channel 6 you may be competing for radio communications with your neighbors. The recommendation is to switch the router to either channel 1 or 11. If your first choice does not work try the other.

This may be a stupid question. However there are three different standards that are used for Wireless communications that I currently know of A, B, and G. This device communicates using the G standard if I have researched it correctly on the web. Out of curiosity what is the model of the wireless cards that were put in desktop computers -- if they do not operate using the G standard that may be why they will not communicate. Other problems may be optional security settings such as encryption (not identified on for the computer's adapter) or MAC addresses that were not loaded into the router to permit communications.