I have a friend who has a wireless network, they have a wireless D-Link Router, not sure of the exact model but it is one of those all n one ones, that had the modem, router and wireless type ones.
It was set up by The Laptop Company and they wont support them in adding another laptop to the network.
There are 2 desktops and 1 laptop currently connected via wireless.
The computers that are connected are going great and can see the connection when they are connected.
But no other computer can see the wireless connection ncluded My Laptop, there laptop they want to add and My Phone.
The security is WEP which is only passcode with the 64bit code.
It is on channel 11
Anything else that you need I can find out.
It has really stumped me, because it should be going when compared to the settings I have on my router.