Can't Connect via XP

I've just installed my new Airport Extreme N base station and updated both the software and firmware for the unit. I have a sold green light on the front of it, so it appears everything was updated properly.
I connect my Mac (this computer) via ethernet to the base station, and it all works. However, I can't seem to connect my Windows XP (SP2) computer, located in a different room, wirelessly. This computer connected fine to my old Linksys router (with no security settings enabled).
I was trying to configure my wireless network with maximum security to prevent anyone else from connecting to it.
I have it set up to use WPA/WPA2 Personal wireless security.
On the Windows XP computer, I use a Linksys Wireless G USB adaptor (WUSB54Gv2). Using the Linksys setup utility (visible in the task bar), I created a New Profile and entered in my security settings. It can see the Airport Extreme basestation, and says it's connected to it. However, it can't connect to the Internet.
Short of disabling all security on my new Airport Extreme (and throwing out a main reason for getting it), what can I do to get my Windows XP computer to access the internet?

Well, I guess the hex equivalent question is a moot point now, as I've got the network running securely via WPA2 now.
To do so, though, I purchased and installed a new wireless adapter for my Windows XP computer. I bought a Netgear WN121T Wireless-N USB adapter.
At first, I had the same problem I had with my Linksys wireless G USB adapter...it could connect to the Airport Extreme, but not to the internet. I tried the hex equivalent thing by entering it in the password box, but got nothing.
Then...I checked Netgear's web site and found a newer software installation version, Version 5. Configuring everything thru Netgear's Wizard (including entering the password into the WPA2 box) worked like a charm this time.
My connection speed is a much-improved (but still not ideal) 130Mbps (compared to the 54Mbps I was able to get with my wireless G adapter). I'm guessing this is because the adapter doesn't operate in the 5GHz range...only 2.4GHz.
At any rate, my connection is now faster than before....and secure.

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We have a small office network connected to an Efficient Networks DSL router that's managed by our isp. The router has 4 ports and a linksys 8 port switch is connected to one of those ports. Another D-Link wireless router/switch is connected to another port.
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Tim,
Thanks for your help. Here's what I've done before reading your e-mail. The D-Link DI-524 wireless router is connected to the Effiicent Neworks DSL router as you mentioned. One ethernet port of the EFF.Net. router is connected to the WAN port of the DI-514.
Because I have a D-Link router at home which works flawlessly with my powerbook, I decided to connect the ethernet cable of the powerbook to the D-Link which has 4 ethernet ports. Lo and behold, the powerbook acquired a private ip address and connected to the LAN and internet!
When I connected the powerbook direct to the Efficient Networks router, it could not communicate. I believe that there must be some software incompatibility between the powerbook and the Efficient Networks router. By connecting to the D-Link, the D-Link assigned an ip address to the powerbook, and it could connect to the server, lan, etc..
Only problem is that I have a Brother network printer that cannot connect to the powerbook. My powerbook cannot find it on the network. Because there is a linksys switch connected to the efficient networks router's third ethernet port, maybe as you said, going through the D-Link via DHCP (when the Linksys is also acting as a DHCP server, might cause this type of problem. What do you think?
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Message was edited by: supercres

Bit of an odd problem here.
My Mountain Lion Mac Pro (called "Trogdor" for convenience) is connected to my work university network. I can ping it from anywhere-- elsewhere on the network, from home behind a firewall. Can connect over ssh from everywhere. I can also connect to other computers (on the same network or at home behind a firewall) from Trogdor via ssh, Screen Sharing, etc.
But I can't Screen Share into Trogdor, and I can't connect to Trogdor's built-in web server, either system-wide (in /Library/WebServer) or for my username (~/Sites). (I can connect to the web server from Trogdor.)
Note that I can do both of these for other computers on the same network (same subnet, etc), so it's not a network issue. I can't do these from anywhere: same network or from home. I have this problem whether I use Trogdor's hostname or its IP address. (I can look up its hostname using the IP address with the "host" tool in Terminal, and vice versa.)
So it sounds like a port issue, right? Except I don't think I've ever messed with my port settings directly. How do I diagnose the problem? Should I scan my ports? Can I return port settings to default?
Thanks!
Message was edited by: supercres

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I did see a message saying that my network settings had been changed by another application but don't know if this figures in the mix.
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For 18 months I've had WiFi at my home and I connect my MacBook (OS X 10.5.6), my iPod Touch; my daughter connects a PC running Vista! I used to be able to connect my PBG4-12" running Tiger 10.4.11 - but today I was trying to connect and it doesn't even see my WiFi - even right next to it in the same room!
I connect via the ethernet cable fine-- and the other Mac/iPod/PC are accessing WiFi fine. The PBG4 finds the neighbors WiFi - but not mine!
I type in the name and password-- nope, nothing! I turn Airport off and then try the cable and perfect-- I'm on the www but not with "WiFi".
This seems very strange-- usually it's all or none-- sometimes a PC can kick-off the other computers and I have to pull the electrical (is that a hard restart to the modems etc?)
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Best regards,
Steve Schulte
Tuesday 7 April 2009 at 17:56

Hello -- Good questions but I'll need help in order to answer them.
I have a D-Link WiFi Modem - DIR-635- Dec 2007 purchase, and here's some info from the 90 page manual:
Combines award winning router features and Draft 802.11n wireless technology to provide the best wireless performance.
Compatible with 802.11b and 802.11g Devices - The DIR-635 is still fully compatible with the IEEE
802.11b standard, so it can connect with existing 802.11b PCI, USB and Cardbus adapters.
Would a Dec 2007 iPod Touch 1st Gen be on WiFi 'n'? How to check?
How to find the channel on which the WiFi is broadcasting?
Thanks for any replies and then I can re-reply!
The crazy thing is that I'm almost certain I've had my PBG4 connected to the web via this (my first and only) D-Link WiFi DIR-635 Modem.
Steve
Steve

Can't Connect via XP

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