That's a very bad sign. Magnet links are from a server. It looks to me like you're being shaped for p2p use!!!

Try connecting using a different port. It might not make any difference but worth a try. Here's a few to try: 1111, 3500, 80, 1203, 10000, 15189, 20282, 443, 427, 34599, 64049

ie: Go to LW's menu bar, Tools>Options>Advanced>Firewalls & set it for manual port forward & change both the listening & connection ports to one of above & press apply. Then reconnect with LW. Give each one plenty of time & try downlding. If you are being shaped for p2p, then perhaps there's a small chance they're only shaping one or some ports.