WiFi Problem

Mon May 5 13:43:46 EDT 2014

I have a problem with a laptop XO 1.75 sugar 0.98
the wifi have little power and not detected with easily the networks, I changed the network card and the antennas but did not work, besides  I installed again the operative system sugar.
I need help for resolve this problem 
Thanks! 
Juan Carlos Garcés Ing. ElectrónicoCel. 311 819 0835Bogotá - Colombia  		 	   		  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.laptop.org/pipermail/devel/attachments/20140505/187905b3/attachment.html>