The loss per metre of coax cable at this frequency is considerable. Move your access point to a better location, don't run a cable from the access point to an antenna at a better location. The cable loss can easily get bigger than the gain by replacing and/or using a gain antenna.
Try moving metallic objects. I sometimes have to place a metal box beside my laptop to reflect signals back into the antenna of the Cardbus transceiver. A cakebox is preferred for obvious reasons. I also noticed that if my (aluminum) attic ladder is not at its usual place, I have problems. Such reflecting objects can do good or harm, there is no way you can tell other than moving them and watch the field strength meter in the control panel. |