Slow DNS response to Ping

B

Bill H

I have 5 Win XP client workstations in our home network along with two Win
2K3 servers and a Linux server. All activity goes to the internet through a
switch, then a Netscreen firewall/router, and finally out the Cable modem.

On my IBM Thinkpad (T42), and only my Thinkpad, when I open a DOS window a
ping to Yahoo, or Google, etc pauses for seven or eight seconds before
responding. If I log off my own administrator account and onto the real
"administrator" account (which I haven't done before today for over a year),
this problem doesn't occur. So, I enter:

C:\Documents and Settings\william>ping www.yahoo.com

....wait seven or eight seconds and get:

Pinging www.yahoo-ht2.akadns.net [209.131.36.158] with 32 bytes of data:

Reply from 209.131.36.158: bytes=32 time=33ms TTL=51
Reply from 209.131.36.158: bytes=32 time=34ms TTL=51
Reply from 209.131.36.158: bytes=32 time=36ms TTL=50
Reply from 209.131.36.158: bytes=32 time=33ms TTL=51

Ping statistics for 209.131.36.158:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 33ms, Maximum = 36ms, Average = 34ms

C:\Documents and Settings\william>

All pinging to IP address respond instantly. "Nslookup www.yahoo.com"
responds instantly. An "ipconfig /all" shows:

C:\Documents and Settings\william>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : asibill
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Wireless Network Connection 2:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) PRO/Wireless 2200BG
Network
Connection
Physical Address. . . . . . . . . : 00-12-F0-27-DB-BD
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.1.101
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.1
DNS Servers . . . . . . . . . . . : 4.2.2.1
4.2.2.6

C:\Documents and Settings\wphaskett>

My "hosts" file includes:

127.0.0.1 localhost
192.168.1.12 AsiDev # the development dbms server
192.168.1.13 AsiWeb # the development IIS web server
192.168.1.21 NetgearWG602 # wireless access point
192.168.1.41 NPI81E221 # HP 2420dn laser printer
192.168.1.42 HP926CC3 # HP 3300 photosmart printer
192.168.1.51 AsiBill
192.168.1.52 Gateway1
192.168.1.53 Asi4550a
192.168.1.56 AsiMichael

When I run a "ipconfig /displaydns" I see that:

AsiWeb
AsiMichael
NPI81E221
Gateway1
HP926CC3

....appear in the list, as do a couple of others in the reverse format like:


21.1.168.192.in-addr.arpa
----------------------------------------
Record Name . . . . . : 21.1.168.192.in-addr.arpa.
Record Type . . . . . : 12
Time To Live . . . . : 599248
Data Length . . . . . : 4
Section . . . . . . . : Answer
PTR Record . . . . . : NetgearWG602

If I try to ping any of these devices they respond instantly, except
"asidev", "localhost", and "asi4550a", which respond after the 7-8 seconds.
I've tried to flush the dns by issuing the "ipconfig /flushdns" command and
rebooting multiple times. Still no luck.

Does anyone have any idea why this occurs on my machine logged in as me?

Thanks,

Bill
 
G

Guest

I found a resolution. It seems Windows Update is wrecking some havoc amoung
some XP and 2003 machines. An MSCE friend says he's had seven machines, in
the last three weeks, where the user profile was corrupted and, therefore,
couldn't gain access to some Windows software.

He told me the solution was to log onto the "administrator" (best to reboot
the machine) account and delete the profile in question, then log back on
using that user. Since his was a, sort of, machine account he didn't have to
worry too much. I, on the other hand, had to reconfigure a ton of software,
but the lagging DNS problem went away, and my web browsing speeded up
dramatically.
--
Bill


Bill H said:
I have 5 Win XP client workstations in our home network along with two Win
2K3 servers and a Linux server. All activity goes to the internet through a
switch, then a Netscreen firewall/router, and finally out the Cable modem.

On my IBM Thinkpad (T42), and only my Thinkpad, when I open a DOS window a
ping to Yahoo, or Google, etc pauses for seven or eight seconds before
responding. If I log off my own administrator account and onto the real
"administrator" account (which I haven't done before today for over a year),
this problem doesn't occur. So, I enter:

C:\Documents and Settings\william>ping www.yahoo.com

....wait seven or eight seconds and get:

Pinging www.yahoo-ht2.akadns.net [209.131.36.158] with 32 bytes of data:

Reply from 209.131.36.158: bytes=32 time=33ms TTL=51
Reply from 209.131.36.158: bytes=32 time=34ms TTL=51
Reply from 209.131.36.158: bytes=32 time=36ms TTL=50
Reply from 209.131.36.158: bytes=32 time=33ms TTL=51

Ping statistics for 209.131.36.158:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 33ms, Maximum = 36ms, Average = 34ms

C:\Documents and Settings\william>

All pinging to IP address respond instantly. "Nslookup www.yahoo.com"
responds instantly. An "ipconfig /all" shows:

C:\Documents and Settings\william>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : asibill
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Wireless Network Connection 2:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) PRO/Wireless 2200BG
Network
Connection
Physical Address. . . . . . . . . : 00-12-F0-27-DB-BD
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.1.101
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.1
DNS Servers . . . . . . . . . . . : 4.2.2.1
4.2.2.6

C:\Documents and Settings\wphaskett>

My "hosts" file includes:

127.0.0.1 localhost
192.168.1.12 AsiDev # the development dbms server
192.168.1.13 AsiWeb # the development IIS web server
192.168.1.21 NetgearWG602 # wireless access point
192.168.1.41 NPI81E221 # HP 2420dn laser printer
192.168.1.42 HP926CC3 # HP 3300 photosmart printer
192.168.1.51 AsiBill
192.168.1.52 Gateway1
192.168.1.53 Asi4550a
192.168.1.56 AsiMichael

When I run a "ipconfig /displaydns" I see that:

AsiWeb
AsiMichael
NPI81E221
Gateway1
HP926CC3

....appear in the list, as do a couple of others in the reverse format like:


21.1.168.192.in-addr.arpa
----------------------------------------
Record Name . . . . . : 21.1.168.192.in-addr.arpa.
Record Type . . . . . : 12
Time To Live . . . . : 599248
Data Length . . . . . : 4
Section . . . . . . . : Answer
PTR Record . . . . . : NetgearWG602

If I try to ping any of these devices they respond instantly, except
"asidev", "localhost", and "asi4550a", which respond after the 7-8 seconds.
I've tried to flush the dns by issuing the "ipconfig /flushdns" command and
rebooting multiple times. Still no luck.

Does anyone have any idea why this occurs on my machine logged in as me?

Thanks,

Bill
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