I worried my post isn’t attracting any attention on this as the topic was originally about finding a DNS example. I think I have found some bugs with the DNS and hope that Wiznet can fix this if it is a confirmed issue. I have also posted a fix. Please see the link below for all the information on this.
Thank you for your post. I’m sorry for the delay, I went straight to Wiznet to try and resolve the issue. If you work for Wiznet then you may already know they are looking at this.