I've experienced similar problems. I've had to change the localhost entry in /etc/hosts, namely remove localhost from the following line: 
::1             localhost ipv6-localhost ipv6-loopback

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In reply to Re: LWP connecting to LWP issue when no eth has ipv4 address by choroba
in thread LWP connecting to LWP issue when no eth has ipv4 address by admiral_grinder

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