What kind of hinderances can you have with an outdoor wireless connection? We have an outdoor antenna on 50ft of coax low loss cable and it is hooked to a symbol 4131 Access point. We are using 802.11b. When the antenna is indoors it appears to work, but when it is mounted to the building you can't get signal unless you are 2ft or less from it. I am wondering if the metal roof, powerlines, or some other device could be causing the problem?