Last week we had an issue with DNS2 which caused some problems for customers using only our DNS1 and DNS2 servers. We diagnosed the problem to be an issue with DNS1, and performed maintenance over the weekend to resolve the issue. We will be doing additional maintance to DNS2 tomorrow evening to close out the issue. This maintenance will include a datacenter move and an expected downtime of approximately 4 hours. We recommend adding DNS3, DNS4, and DNS5.NETTICA.COM to your name server list at your domain registrar (or the appropriate rebranding) if you have any concerns relating to this maintenance window. Please contact support with any questions.