Jonathan Horne wrote:
i have a client, who has been running pfsense since january. i recently updated him to 1.2-RC1, and since then, his internet browsing for his site has been really poor. when a browser is opened, the initial connection to the site takes 10-15 seconds, then the site starts to open. other links within the site will seem to work fine, but when you try to open another site, pause.. then opens.
For the sake of the archives - Jonathan sent me the packet captures as I instructed in a previous reply. It's nothing pfsense-related, it's DNS on the client machine.
The client machine is doing several AAAA lookups (IPv6) which are timing out or getting empty responses before doing A lookups (IPv4) for the domain name. This is adding a 10-15 second delay to every DNS lookup while all the IPv6 lookups fail. Since your typical page load is going to make a few DNS queries, incurring this delay several times, it has a significant impact on page load times. Once the machine queries the A record as it should have initially, it gets a reply very quickly and immediately pulls down the web page with no delays whatsoever.
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