Airport express not allowing PC or xbox on to network with WEP password

Hi there
Ever since we switched from PC to Mac about 5 years ago our airport express (purchased 2007) has not allowed a PC or other gaming device on to it's network. I have two MacBooks at the moment which needed to be configured with slightly different IPv4 addresses in order to be on the network. That was about a year ago when we bought a new MB and I thought it strange when both computers would not connect and it was a bit of a drama lugging both computers to the store in order for the techs to manually fix the issue.
Now we have an international student living with us and it is very important that he is able to connect with his PC to our network. My son's DS and xbox is never allowed to connect to our network using the WEP password that we use for our Macs. It is a very frustrating situation now as I do not think that the Mac store can help us out since I asked for advice a while ago when trying to connect my son's gaming consoles and they said they could not help with non apple products. This is a little odd as I thought that Airport would connect all devices. Our internet provider cannot help us as it is NOT a modem issue.
I should also add that at least twice a day our Macbooks 'fall off' our network and we have to turn the airport off and on in order to reboot the connection. I also have an iphone and that connects to our network although occasionally it will ask me to rejoin and prompt me to enter the password which I do but it rejects it. I usually press cancel and for some reason it connects fine despite not accepting the password.
My question is this: Can I connect other devices to airport and if so, how? Or is our airport faulty and should I replace it? I really don't want to buy a new device if the same problem is still going to occur.
Thanks in advance for the help.

bump
I'd love some feedback....anyone?

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More detail on this.
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mickair wrote:
I have been experiencing some networking problems
Welcome to Apple's discussion groups.
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Plug AirPort Express into a power outlet.
On your computer, join the wireless network created by AirPort Express.
Open AirPort Setup Assistant. Mac users: Find it in /Applications/Utilities/. Windows users: On the Start menu, point to All Programs and click AirPort.
When you see the Introduction screen, click Continue.
Select "Set up a new AirPort Base Station" and click Next.
When the AirPort Setup Assistant confirms that it has found your AirPort Express, click Continue. (If >your AirPort Express wasn't found, click Try Again.)
Select "Connect to my current wireless network."
Be sure that "Extend the range of my AirPort wireless network" is not selected (this option is used >only for WDS).
Click Next; AirPort Express Assistant will scan for your existing wireless network. Once it finds it, click Next again.
Choose the correct network (there may only be one) from the Wireless Network Name menu. If the wireless network is password protected, you will be prompted to enter the password. Enter the password and then click Next to continue.
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Enter the name of your AirPort Express.
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Assign an administrator password for AirPort Express. This password can be different from any network password, and is used for just changing settings on AirPort Express.
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Help regarding Materialized view ( subquery expression not allowed here )

Hi all,
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BUILD IMMEDIATE
REFRESH COMPLETE ON DEMAND
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Hi,
You cannot use scalar subqueries in a materialized view.
http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:4110947624538#22981269011674
edit
From 10g doc:
ORA-22818: subquery expressions not allowed here
Cause: An attempt was made to use a subquery expression where these are not supported.
Action: Rewrite the statement without the subquery expression.
(http://download.oracle.com/docs/cd/B19306_01/server.102/b14219/e19400.htm#sthref6020)
Edited by: hoek on Jun 10, 2009 7:56 AM

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Interesting. I am getting even worse results on 11.2.0.1.0:
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CURSOR STATEMENT : 1
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DNAME          CURSOR(SELECTENAMEFR
ACCOUNTING     CURSOR STATEMENT : 2
CURSOR STATEMENT : 2
ENAME
CLARK
KING
MILLER
RESEARCH       CURSOR STATEMENT : 2
CURSOR STATEMENT : 2
ENAME
SMITH
JONES
SCOTT
ADAMS
FORD
SALES          CURSOR STATEMENT : 2
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ENAME
ALLEN
WARD
MARTIN
BLAKE
TURNER
JAMES
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no rows selectedSY.
Edited by: Solomon Yakobson on Jul 17, 2012 1:27 PM

Airport express not allowing PC or xbox on to network with WEP password

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