If you connect the laptop to the router (or the modem) with a cable? If this gives high speed, then you may need to change the Channel your router is using. It's probably on 11. Change to 1 or 5. Interference from other wireless equipment can greatly reduce wireless connect speeds.
Hello, I am owner of Dell Studio 1555 and I have Dell Wireless 1397  WLAN Mini Card on my board. There is a problem when I am connected to my router and Internet runs very slow. Signal strenght is excellent, I am using WPA2 encryption. There is no problem to connect to the network, I had just to setup ipv4 settings like IP, gate and so on because automatic setting hadnt work. So I run my firefox and google loads pretty okey but slow. Then it's impossible to surf because downloading speed is something like 1 kb/s. When I plug in ethernet cable then it's everything all right. I was trying to reinstall drivers but nothing changed. I use windows vista. I was trying connection also in ubuntu linux system but same problem occurs. My friend is using wireless connection from the same router and it is everything all right for him. How to speed up connection? Best wishes Simon
Very slow wireless connection