Oakenlivery
First, read a previous reply of mine about Virgin media:
http://www.gnutellaforums.com/downlo...tml#post276319
As I have dealt with Virgin before and I know that while they throttle P2P communications they will never publicly admit it. That is why I changed over to Bulldog, where they only partially throttle P2P since being taken over by Pipex.
As for WEP, based on my modem/router's user manual, it's an encrypted radio signal and so should not have a direct affect on your PCs, but who knows, stranger things have happened.
However, your Teredo implementation sound more interesting and seems to be the reason why your older PCs are not blocked. This is what I found out:
Quote:
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Teredo is a tunnelling protocol designed to grant IPv6 connectivity to nodes that are located behind IPv6-unaware NAT devices. It defines a way of encapsulating IPv6 packets within IPv4 UDP datagrams that can be routed through NAT devices and on the IPv4 internet.
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I'm guessing but, unless someone says different, the tunnelling protocol is different enough not to get blocked by "bandwidth shaping" anti-P2P technology.
See if you can add Teredo to your other blocked PCs, see how it works and let the forum know how you get on.
UK Bob