Just purchased a wcg200 at a yard sale. want to use it as a wi-fi system to my shop from the house. about 90 feet. is this possible? also need to check the ip address on this. or should I just reset it to factory specs?
Reset to factory specs as you'll probably find the default IP address and setup screen password on a label on the machine -- or in the user manual (download from Linksys).
Despite the range claimed by makers, 90 feet may be stretching it, unless it's line of sight. Be sure to optimise reception, starting with finding the best channel for your environment and to avoid interference from neighbouring wifi.