We brought home a beautiful new Macbook last night - 2.0 GHz, white. Everything seems great, no heat problems or strange noises when taxing the machine, etc. Except for wireless. I have a D-Link DWL-900AP+ wireless access point that has worked perfectly with numerous PowerBooks, an iBook, and the occasional wireless PC. However, this Macbook seems to consistently drop about 1/4 to 1/3 of packets. The effect is that the network freezes up during this period. What happens is I get about 12-15 seconds of good packet reception, followed by 6-7 seconds of all packets dropped. Signal strength remains constant at 100% during the dropped packets, but all network activity stops dead. This is especially irritating because I often login remotely to other machines via Terminal, and every time the network freezes up, I can't see what I'm typing until it comes back 6-7 seconds later. Can other people with a Macbook please try this little test? If you know the IP address of your wireless access point, or even just another computer on your network: Open /Applications/Utilities/Terminal Type this command: ping -c 100 126.96.36.199 where you replace 188.8.131.52 with the IP address of your access point or some other computer on your network. In my case, my D-Link has IP address 192.168.1.15. What is the brand and model of your wireless access point? When the ping finishes, what are your statistics? On my work PowerBook, I get the following: When I run the test at exactly the same time on the Macbook, I get this: One possible wildcard here is that the PowerBook is still on Panther, while obviously the Macbook has Tiger. This is my first time using wireless with a Tiger machine here (the Power Mac has Tiger, but is using ethernet). Also, the PowerBook and the Macbook can't ping each other, although both can ping and remotely login to my Power Mac which is also on the network. Crazy! I'm about ready to go back to the Apple Store and see if it does the same thing there, as well as whether the display Macbooks do it. Might be interesting. Anyway thanks for any feedback!