After changing my network architecture, I am unable to use Skype 2.0\nbecause it generates a roughly 1.5 second-delayed echo that makes\nconversation impossible. The words of the party dialed come in garbled,\nechoed bursts, followed by silence.\n\nI have already contacted Skype's technical support (weak though it is),\nbut their suggestions were fruitless and aimed at the most basic\nproblems (I used the same headphone-mike setup before and after the\nproblem started, and Skype configuration changes made no difference).\n\nBefore the problem started, my Internet (cable) connected to a cable\nmodem, which went to a 2-port hub, which went to a Windows XP SE2 PC\nrunning Skype 2.0 (latest version).\n\nThe problem started after switching to optical fiber, so that the\ninternet arrives by optical fiber connected to an optical modem, which\nruns into a Belkin pre-N router (used only in LAN-cable wired mode, not\nwireless), which runs into a 16-port hub, which runs to my PC via LAN\ncable. The length of the LAN is about 450 feet/170 meters of Class 6\ncable.\n\nIf I connect my PC directly to the router (bypassing the hub), the\nproblem still exists but the echo is shorter. If I connect my PC\ndirectly to the optical modem, I don't get an internet connection.\n\nI am dialing the same overseas numbers before and after the problem.\nThe problem exists whether I use an IBM PC or a Dell PC, both of which\nhad no problem before the system architecture change. These are not\nconference conversations. The problem exists whether I dial a person or\na recording, a toll or a toll-free number on the other side.\n\nThe optical fiber ISP, Belkin and the hub manufacturer all claim their\nequipment is VoIP compatible.\n\nUseful suggestions on how to eliminate the echo in Skype would be\nappreciated.\n\nThanks.