I have been having some trouble with my website, in regards to not being able to access it from certain computers / networks.
The majority of computers can access it fine, but every now and then, I get a call from a customer who can't access it.
I also have people who can only access it, if they don't use the www.
I am led to believe that it is an issue with my DNS, and I am hoping that someone here can not only confirm this, but also confirm what I need to do in order to correct it.
The website is www.plasticprinting.com.au
Thanks for your help and please let me know if you spot any other faults, whether it is technical or SEO related etc.