I know that this was discussed before but I can't seem to find a conclusion of how to replace the variax connector on the 300. I have one that works intermittently. Push the cat 5 cable toward the narrow end and it works, toward the wide end and it doesn't. I am assuming that it is finally wearing out. Can someone suggest the easiest way to replace or maybe adjust this for novice? I don't want to send it to a service center since I am in Hawaii. I was hoping for a simple DIY solution.