Hi,
The probelm that you have mentioned is very common. The first thing that you need to check if the security is enabled on your wireless router or not. Do you have to enter any passkey when you try to connect the notebook wirelessley? If not then the security is not enabled and there is every possibility that there are other system's on your network who are eating up your bandwith. Because if security is not enabled then anyone who is in that wireless range can connect his system to your network and access internet on your cost! This causes your system to run slow because there are other system's accesing your internet connection at the same time.
So get the security enabled and then check the performance.
The second issue could be the router, reset the router ( call the router company and they will help you with that) and if that dosen't work then you will have to update the firmware of the router.
There could be a problem with the system's itself. The best thing to check if the system's is to individually connect the system to the network cable ( remove the router from the picture) and then check their performance one by one.
If the system's work fine when they are directly connected to the network cable then the issue is definately with router and security.
For any further help and tips, feel free to post and I will be glad to answer them.
Any BTW, if you plan to throw the PC then contact me!!
