socorro,   Heard different things people try, depending on the model of their wireless adapter.   Start, control panel, device manager, netowrk, their adapter, power management. Uncheck the box to allow Windows to turn off this device to save power   Start, control panel, device manager, netowrk, their adapter, advanced. Look for Antenna Diversity. Some adapters have this and some don't. Change the Antenna Diversity from Auto to Aux.   Some have turned off the wireless N feature of their adapter and got good results.   Some wireless N adapters work ONLY on the 2.4GHz frequency.   Using these Recommended Wireless Router Settings I use channel 11, have GREAT results. I usually recommend creating an new SSID to make connecting easier. Wireless devices also need to connect to the NEW network.     Rick    
Symptom(s):The following symptoms may be seen if a Wi-Fi access point (AP) or broadband Wi-Fi router does not properly support the Power Save Polling (PSP) feature: These symptoms may be more pronounced when on battery power.   Cause:PSP mode is a feature that provides extended battery life for notebook computers. It requires coordination between the AP or router and the Wi-Fi adapter. Intel has discovered that some APs or routers may not implement the feature correctly or completely.
Power Save Polling (PSP) causes connection issues with some access points