Any tips to avoid "Cannot find server or DNS Error" messages

GenMarshall

High Elven ISB Capt & Ghost Agent
Joined
Jun 17, 2002
Messages
44,443
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Night Haven, Vekta, United Systems of Arathor
Just a while ago, I could not access the forums due to this error message "Cannot find server or DNS Error". I was wondering if there is any tips for me that would help me avoid this problem.

BTW, it also took me about an Hour and a Half just to get into the #civfanatics Chatroom.

I know the solution is to get a cable modem. But are there any tips for us that do not have deap pockets.

Thanks.
 
There are a couple of different ways to tweak Windows 2k/XP not to cache failed DNS lookups:

1. You can flush the DNS cache manually, by going to Command Prompt and typing: ipconfig /flushdns
2. You can wait for the cached lookup to expire or reboot the system...

Or you can permanently solve this issue by tweaking a few Registry entries.

DO NOT DO THIS IF YOU DON'T KNOW WHAT YOU ARE DOING, OR IF YOU ARE UNSURE. ALSO MAKE A BACKUP OF YOUR REGISTRY BEFORE EDITING IT IN ANYWAY.

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Dnscache\Parameters]

NegativeCacheTime=0 (DWORD, default value: 0x12C (300 seconds), range: 0x0–0xFFFFFFFF seconds)
Description: Determines how long an entry recording a negative answer to a query remains in the DNS cache. When the time specified in the value of this entry expires, the DNS client deletes the answer record from cache.

NetFailureCacheTime=0 (DWORD, default value: 0x1E (30 seconds), range: 0x0–0xFFFFFFFF seconds)
Description: Determines for how long the DNS client stops sending queries when it suspects that the network is down. When the DNS client does not receive responses to repeated queries sent to any network adapter, the DNS client stops sending queries for the time specified in the value of this entry. During that time, the DNS client returns a timeout response to all queries. If the value of this entry is 0x0, this optimizing feature is disabled. DNS continues to send queries to an unresponsive network.

NegativeSOACacheTime=0 (DWORD. default value: 0x78 (120 secnds), range: 0x0–0xFFFFFFFF seconds)
Description: Determines how long an entry recording a negative answer to a query for an SOA (Start of Authority) record remains in the Domain Name System (DNS) cache. When the time specified in the value expires, the DNS client deletes the answer record from the cache.
 
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