A bit of a strange issue here. I recently purchased a new laptop, and installed W7 RC7100 on it. Brought it to my friends house and my house, both of which were equipped with wireless routers running in mixed g and n modes. Internet worked fine. The touchpad on my laptop bricked after a few hours, and I RMA'd it. Received a new laptop, installed W7 RC1 build 7232 on it. 64 bit version. Specs: My Router: D-Link DIR-615n Wireless Card: Atheros AR928x Friends Router: Some Linksys router with n capabilities. All have newest firmware With: Client for MS Networks QoS Packet scheduler IP4 IP6 Link Layer Mapper Link Layer Responder ENABLED,and bonjour disabled here are my results: Router set to g protocol only: 100% network and internet functionality Router set to n protocol only: 70% network and internet functionality(functionality is a rough guesstimate, but basically test it by going to a varity of websites until I start getting timeout errors) Router set to g and n mixed: 10% network and functionality - works for 10-15 seconds after connecting to network, then shows maybe 5 seconds of connectivity per minute. With only: Client for MS Networks QoS Packet Scheduler IP4 ENABLED, and Bonjour service disabled my results were: Router set to g protocol only: 100% Functionality Router set to n protocol only: 90% functionality(when browsing websites, seeing only about 4-6 seconds of downtime out of every 30-45 seconds) Router set to g and n protocol: 60-75% Note: When attempting to connect to my friends router set to g and n with above settings, friends router would not respond or allow wireless logins from my or her laptop. So in summary: My wireless works fine with a router is set to g only in any situation. Disabling a decent amount of functions seems to moderately to substantially increase functionality while in n, or g&n modes. However, they are still unreliable. Sorry for the relatively...unprofessional analysis and information I've given. I'd like to figure this out since...asking people to change over to g only is tiresome, and impossible in any public place. I will do my best to provide any information needed.