A shop environment will create a lot of interference for a radio shot. At my home, I can easily get a signal at 60 ft. from my Linksys dd-wrt firmware router on my laptop. Actually, I can get a signal from about 3 houses down. However, in a shop you have many variables such as load bearing walls, EMF radiation from equipment, etc.. Dropping some Cat 5 is probably the best option in your situation. However, I do have a couple of recommendations you can try. Since you are running dd-wrt firmware, go into the Wireless settings and bump up your transmit power from the default 70 mW to 100 mW. And enable Afterburner, if it's not already enabled. And use high gain antennas and and angle them towards your target, not straight up and down. Make sure the router is placed as high as you can get it in the building. The higher the better. Make sure it is not sitting next to a big TV or other electrical devices that have a high current draw. And verify that your router is broadcasting your SSID.
it was not a problem to bring money to his house at 10pm.so why is it a problem to call and bitch.it wasnt a problem when we were all sitting around smoking pot together.yes i said it we all were smoking pot together.what now stupid.