We have 7 DELL Powerconnect 3248P 48-port POE switches, and all but one are connected to each other with the RJ-45 Gigabit port (labeled G3 and G4 on the switch). The last one is connected from its G4 port to the second-to-the-last one's regular 10/100 port (#21, in this instance). This last one is also the only one that has the Stack ID light on, and it is showing the Stack ID as being #1 and the master. We've had some odd network issues occur in the last day or so connecting to specific servers (the type of errors that happen when the network has conflicts and on a server that relies heavily on quick network connections), and it was after we moved some cables on the last switch. Looking at the physical configuration now, we're wondering if the way the last switch is connected might have anything to do with it. Optimally, if all the other switches are not lit but haven't had any problems, we probably won't do anything with the 6, but for the 7th, should we plug into the gigabit port to connect it with the Stack ID light lit up, or should we connect 6's #21 jack to 7's #15 jack and bypass the gigabit port on these two switches? Thanks!!