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Customers are seeing this error a lot when attempting to load a web page. Refreshing often results in the page loading correctly on second attempt. The HT1000 runs a little caching DNS server. When any DNS reply passes through the modem, it is cached. Future queries for that domain name are then served from the modem. You cannot clear the cache short of rebooting the modem. By default, the modem advertises itself as a DNS server via DHCP options. It then takes any queries sent to it and forwards them to HughesNet’s DNS servers. It seems you can specify your own DNS servers, but the cache will still see the reply to any query and holds the reply until it expires, or until the modem is rebooted.