teresamoran51 :
Thanks for all replies. I am using a ZyXel P-600 series router furnished by the telephone company I get my wireless service. I am using Realtek RTL 8188ca wireless LAN 802.11 USB 2.0 network adapter. The router is located inside my husband's rolltop desk in the living room. I am in my office 2 walls away and about 25'. What is the difference between wireless G and wireless N? Thanks so much to both of you. Teresa
One thing comes to mind. Relocate the wireless router. The ideal location for the wireless router would be on top of the desk, at the highest point possible. Definitely not "... inside my husband's rolltop desk... " as you state.
Wireless 'N' is the newer and faster standard compared to the wireless 'G' (even older standards are 'A' and 'B', now practically obsolete).
At the end of this year the latest Gigabit standard (faster) will be released.
In your case, relocating the wireless router will solve the signal strength issues. The manual explains ideal locations, usually at the highest point possible.