Not sure what's wrong with your network? Before you buy an expensive
replacement router or cable modem, test your cables! If the wires are
broken (and you know how those cables get snaked around the house) the
tester will detect it. If you make your own patch cables and want to
test that the wires are correctly assigned, then you need this! Test
your twisted pair, Straight, Crossover, Cat 5 / Cat 5e / Cat 6 / UTP
cables with RJ-11 or RJ-45 connectors. Insert the battery, turn on the
tester, and connect one end of the cable to the Master side and the
other end to the Remote side. The lights indicate problems (if any) with
wires in the cables. A very useful item for the networking enthusiast!
Construct your own patch cables? Test them with this!