Not sure if this belongs in the Yosemite or Macbook forum. I am running OS X Yosemite on a 2013 Macbook Pro Retina. While at school, once I am connected to the internet, it will keep the connection. While on my home network, I manually connect to the router, and after about 30 seconds, the connection is dropped. The internet does work fine for those 30 seconds. I have to constantly manually reconnect to the router, which is a pain. I am not really sure how to diagnose issues on macs, but since I am able to connect fine at school it cannot be a hardware issue. I have tried resetting the router and forgetting/re-adding the network on my mac but nothing seems to work. Any help is greatly appreciated!! ---------- Also, for the short time that I am still connected to the router at home, under Network -> Advanced -> WINS it says under NetBIOS Name that the name is currently being used, so I logged into the router and revoked my macbook's DHCP and reconnected, but that did not fix it.