如題，這幾天不知道為什麼，
每次在家打開醫圖網站就會顯示下列的訊息，然後就無法連入。
The requested URL could not be retrieved
While trying to retrieve the URL: http://ntuml.mc.ntu.edu.tw/
The following error was encountered:
Unable to determine IP address from host name for ntuml.mc.ntu.edu.tw
The dnsserver returned:
No DNS records
This means that:
The cache was not able to resolve the hostname presented in the URL.
Check if the address is correct.
Your cache administrator is webmaster.
這種狀況不管是否有用Proxy連線皆會如此顯示，想請問這是什麼原因？
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