If you wish to use your nameservers with our MyDomain.com nameservers, you must ensure that the exact same DNS Records are used in the DNS Management Console and on your personal nameserver. At times, even when the records are exactly the same, we can’t guarantee that it will always work. DNS servers are queried by a Round Robin. If you experience intermittent downtime, it most likely is querying a nameserver that resolves correctly and then one that is corrupted. If you remove the additional nameservers and just use the MyDomain.com nameservers, your website should begin to resolve properly.