Hi Wouter and thank you for spotting that. I completely missed that I had Ipv6 still enabled in the config. I have also enabled TCP as per your suggestion. Cheers, Paul -----Original Message----- From: Unbound-users [mailto:unbound-users-bounces at unbound.net] On Behalf Of W.C.A. Wijngaards Sent: Thursday, October 09, 2014 9:32 AM To: unbound-users at unbound.net Subject: Re: [Unbound-users] Can't Bind Socket Error -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi Paul, You have ipv6 enabled (#do-ipv6: yes at the default) and you have tcp disabled. You should consider do-tcp: yes since the DNS occasionally needs to use TCP, but that is not the cause of your socket errors. Best regards, Wouter On 09/10/14 15:14, Paul Stewart wrote: > Hi Wouter and thanks again for the prompt responses.... > > Here is the configuration to hopefully answer your questions. I read > through the performance documentation and made several adjustments so > perhaps one of those changes were done in error.