Hi everyone,
I am in need of some help people. I have setup a wireless network at home. I am using DLink DWL-G700AP Access point connected to an SMC ADSL Barricade Router (SMC7401BRA). I have a stand alone machine with a Wireless Interface card SMCWPCI-G and a fewa laptops. The issues are

1. When multiple systems connect to the network at different times, and though it appears to everyone that their systems are connected to the network, no one can access the internet-even those who could access it before new systems added themselves to the network.
EXAMPLE:I may have net access now. But when my mom connects her laptop or my dad connects his laptop, I lose internet connection and so do others though we are alll on the network.
2. These days of late, even when there is only one computer on the network, accessing websites is a big problem as we need to try atleast 2 to 3 times to get the website.
3. People say that to confiure the access point specified above, we need to type http://192.168.0.50 but it does not seem to work with mine

Please help me out. I am facing too many issues with the wireless network at home

Thanking you

Akshaya Srivatsa