[altis]

If you're using Firefox then this should help:

Create a file called user.js in the folder
C:\Windows\Application Data\Mozilla\Firefox\Profiles\xxxxxxx.default

(where xxxxxxxx is some alpha/number sequence)

To the file add the lines:
user_pref("network.dnsCacheExpiration", 3600);
user_pref("network.dnsCacheEntries", 100);

Then restart Firefox.

This will increase the number of cached addresses to 100 and their timeout to 1 hour. After the panic is over you can either delete user.js or set the expiry time back down to 360 (= 6 mins) or something similar.