[SOLVED] Sporatic Network Connectivity Issues

swifty67nova · 02-21-2008, 12:14 PM

I will start with listing the devices involved. I have a server, 4 work stations, router, switch and cable modem. One workstation has intermitant connectivity issues. Usually a rebot takes care of the problem for awhile. I have done the ipconfig/all and found that the computer in question has a different DNS Server IP than the rest. I then started pinging the LAN. I got down to ping winxp and it gave me this (ping request could not find host winxp. Please check name and try again.) At this point I think I have a corrupted TCP/IP. I asume this is the incorrcet DNS Server IP I found earlier. If my diagnosis is correct how do I change the TCP/IP or DNS Server IP to match the other workstations? I am not a computer wiz but I did stay in a Holiday Inn Express last night. Any help will be much apprecated. Thanks in advance!

Oh yeah my operating system is Server 2003 and Windows XP Pro

johnwill · 02-22-2008, 05:57 AM

Well, without actually information, it's pretty hard to know what you're seeing.

Please supply the following info, exact make and models of the equipment please.

What country are you located in.
Name of your ISP (Internet Service Provider).
Make and exact model of the broadband modem.
Make and exact model of the router (if a separate unit).
Model numbers can usually be obtained from the label on the device.
Connection type, wired or wireless.
If wireless, encryption used, (none, WEP, WPA, or WPA2)
Make and model of your computer.
Version and patch level of Windows on all affected machines, i.e. XP-Home (or XP-Pro), SP1-SP2, Vista, etc.
The Internet Browser in use, IE, Firefox, Opera, etc.

Also, please give an exact description of your problem symptoms, including the exact text of any error messages.

On a working and non-working computer, I'd also like to see this:

Hold the Windows key and press R, then type CMD to open a command prompt:

Type the following commands:

PING 216.109.112.135

PING yahoo.com

NBTSTAT -n

IPCONFIG /ALL

Right click in the command window and choose Select All, then hit Enter.
Paste the results in a message here.

If you are on a machine with no network connection, use a floppy, USB disk, or a CD-RW disk to transfer a text file with the information to allow pasting it here.

swifty67nova · 02-22-2008, 11:51 AM

Country - USA
ISP - Road Runner Cable

Router - RVS4000 - Linksys

Cable Modem - DPC2100R2 - Scientific Atlanta
Connection - Wired

Server - Motherbd : Intel MATX 945G: S775; Intel MATRIX RAID; 8 USB 2.0; Dual Chan DDR2 667/533/400 RAM GIGABIT LAN
Server - CPU : Intel Pentium D Dual Core 2.8GHZ 2 x 1MB L2 Cache
Server - Ram : 1GB DDR2 533 RAM
Server - Operating Sys : Windows 2003 Server SR1

Workstations 3 Custom 1 Dell
Custom Station 1-3 - Motherbd: MATX LGA 775 DDR 400/333
Custom Station 1-3 - CPU: Pentium D 805 Processor Dual Core 2.66 GHZ, LGA 775 Socket, 533 MHZ Bus Speed, 2 x 1MB L2 Cache, 90NM
Custom Station 1-3 - Operating Sys : Windows XP Pro OEM SP2

Dell - Dimension E520 : Intel Pentium D Processor w/ Dual Core Tech. 3GHZ, 800FSB, 2GB DDR2 SDRAM at 667MHZ
Dell - Operating Sys : Windows XP Pro SP2
Internet Browser - Windows Internet Explorer

Good Working Unit
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\aswift>ping 216.109.112.135

Pinging 216.109.112.135 with 32 bytes of data:

Reply from 216.109.112.135: bytes=32 time=91ms TTL=51
Reply from 216.109.112.135: bytes=32 time=73ms TTL=51
Reply from 216.109.112.135: bytes=32 time=79ms TTL=52
Reply from 216.109.112.135: bytes=32 time=71ms TTL=51

Ping statistics for 216.109.112.135:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 71ms, Maximum = 91ms, Average = 78ms

C:\Documents and Settings\aswift>ping yahoo.com

Pinging yahoo.com [216.109.112.135] with 32 bytes of data:

Reply from 216.109.112.135: bytes=32 time=179ms TTL=52
Reply from 216.109.112.135: bytes=32 time=149ms TTL=52
Reply from 216.109.112.135: bytes=32 time=178ms TTL=52
Reply from 216.109.112.135: bytes=32 time=158ms TTL=51

Ping statistics for 216.109.112.135:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 149ms, Maximum = 179ms, Average = 166ms

C:\Documents and Settings\aswift>NBTSTAT -n

Local Area Connection:
Node IpAddress: [192.168.168.105] Scope Id: []

NetBIOS Local Name Table

Name Type Status
---------------------------------------------
WORKSTATION4 <00> UNIQUE Registered
SERENITY <00> GROUP Registered
WORKSTATION4 <20> UNIQUE Registered
SERENITY <1E> GROUP Registered

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

Windows IP Configuration

Host Name . . . . . . . . . . . . : Workstation4
Primary Dns Suffix . . . . . . . : serenity.local
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : serenity.local
serenity.local

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : serenity.local
Description . . . . . . . . . . . : Intel(R) 82562V 10/100 Network Conne
ction
Physical Address. . . . . . . . . : 00-19-D1-64-51-C9
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.168.105
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.168.1
DHCP Server . . . . . . . . . . . : 192.168.168.50
DNS Servers . . . . . . . . . . . : 192.168.168.50
Lease Obtained. . . . . . . . . . : Friday, February 22, 2008 8:50:38 AM

Lease Expires . . . . . . . . . . : Saturday, March 01, 2008 8:50:38 AM

C:\Documents and Settings\aswift>

Unit in Question
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\jswift>ping 216.109.112.135

Pinging 216.109.112.135 with 32 bytes of data:

Reply from 216.109.112.135: bytes=32 time=72ms TTL=52
Reply from 216.109.112.135: bytes=32 time=71ms TTL=52
Reply from 216.109.112.135: bytes=32 time=71ms TTL=51
Reply from 216.109.112.135: bytes=32 time=77ms TTL=51

Ping statistics for 216.109.112.135:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 71ms, Maximum = 77ms, Average = 72ms

C:\Documents and Settings\jswift>ping yahoo.com

Pinging yahoo.com [216.109.112.135] with 32 bytes of data:

Reply from 216.109.112.135: bytes=32 time=85ms TTL=52
Reply from 216.109.112.135: bytes=32 time=88ms TTL=51
Reply from 216.109.112.135: bytes=32 time=70ms TTL=52
Reply from 216.109.112.135: bytes=32 time=80ms TTL=51

Ping statistics for 216.109.112.135:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 70ms, Maximum = 88ms, Average = 80ms

C:\Documents and Settings\jswift>NBTSTAT -n

Local Area Connection 2:
Node IpAddress: [192.168.168.100] Scope Id: []

NetBIOS Local Name Table

Name Type Status
---------------------------------------------
WORKSTATION1 <00> UNIQUE Registered
SERENITY <00> GROUP Registered
WORKSTATION1 <20> UNIQUE Registered
SERENITY <1E> GROUP Registered

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

Windows IP Configuration

Host Name . . . . . . . . . . . . : Workstation1
Primary Dns Suffix . . . . . . . : serenity.local
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : serenity.local
serenity.local

Ethernet adapter Local Area Connection 2:

Connection-specific DNS Suffix . : serenity.local
Description . . . . . . . . . . . : Linksys EG1032 v2 Instant Gigabit Ne
twork Adapter
Physical Address. . . . . . . . . : 00-12-17-53-B3-C4
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.168.100
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.168.1
DHCP Server . . . . . . . . . . . : 192.168.168.50
DNS Servers . . . . . . . . . . . : 4.2.2.1
4.2.2.2
Lease Obtained. . . . . . . . . . : Friday, February 22, 2008 10:05:28 A
M
Lease Expires . . . . . . . . . . : Saturday, March 01, 2008 10:05:28 AM

C:\Documents and Settings\jswift>

I hope this Information will help. Thank You for even taking the time to help!

johnwill · 02-22-2008, 01:04 PM

That appears bogus, let's try this.

TCP/IP stack repair options for use with Windows XP with SP2.

Start, Run, CMD to open a command prompt:

Reset TCP/IP stack to installation defaults. netsh int ip reset reset.log

Reset WINSOCK entries to installation defaults: netsh winsock reset catalog

Reboot the machine.

swifty67nova · 02-22-2008, 02:47 PM

Give him a chance johnwill fix it!!!

Thank You!

You are the best. DNS IP's match! Thank you again. This is a great forum and everyone is so nice. Again John you are the best.

johnwill · 02-23-2008, 10:07 AM

Glad we were able to help.

02-21-2008, 12:14 PM	#1 (permalink)
swifty67nova Registered User Join Date: Feb 2008 Location: Tampa, FL. Posts: 11 OS: xp	[SOLVED] Sporatic Network Connectivity Issues I will start with listing the devices involved. I have a server, 4 work stations, router, switch and cable modem. One workstation has intermitant connectivity issues. Usually a rebot takes care of the problem for awhile. I have done the ipconfig/all and found that the computer in question has a different DNS Server IP than the rest. I then started pinging the LAN. I got down to ping winxp and it gave me this (ping request could not find host winxp. Please check name and try again.) At this point I think I have a corrupted TCP/IP. I asume this is the incorrcet DNS Server IP I found earlier. If my diagnosis is correct how do I change the TCP/IP or DNS Server IP to match the other workstations? I am not a computer wiz but I did stay in a Holiday Inn Express last night. Any help will be much apprecated. Thanks in advance! Oh yeah my operating system is Server 2003 and Windows XP Pro

02-22-2008, 05:57 AM	#2 (permalink)
johnwill Manager, Networking Forums Join Date: Sep 2002 Location: S.E. Pennsylvania, US Posts: 31,468 OS: XP-Pro, Vista, Linux Blog Entries: 1	Re: Sporatic Network Connectivity Issues Well, without actually information, it's pretty hard to know what you're seeing. Please supply the following info, exact make and models of the equipment please. What country are you located in. Name of your ISP (Internet Service Provider). Make and exact model of the broadband modem. Make and exact model of the router (if a separate unit). Model numbers can usually be obtained from the label on the device. Connection type, wired or wireless. If wireless, encryption used, (none, WEP, WPA, or WPA2) Make and model of your computer. Version and patch level of Windows on all affected machines, i.e. XP-Home (or XP-Pro), SP1-SP2, Vista, etc. The Internet Browser in use, IE, Firefox, Opera, etc. Also, please give an exact description of your problem symptoms, including the exact text of any error messages. On a working and non-working computer, I'd also like to see this: Hold the Windows key and press R, then type CMD to open a command prompt: Type the following commands: PING 216.109.112.135 PING yahoo.com NBTSTAT -n IPCONFIG /ALL Right click in the command window and choose Select All, then hit Enter. Paste the results in a message here. If you are on a machine with no network connection, use a floppy, USB disk, or a CD-RW disk to transfer a text file with the information to allow pasting it here. __________________ If TSF has helped you, Tell us about it! or Donate to help keep the site up! Microsoft MVP - Windows Desktop Experience

02-22-2008, 11:51 AM	#3 (permalink)
swifty67nova Registered User Join Date: Feb 2008 Location: Tampa, FL. Posts: 11 OS: xp	Re: Sporatic Network Connectivity Issues Country - USA ISP - Road Runner Cable Router - RVS4000 - Linksys Cable Modem - DPC2100R2 - Scientific Atlanta Connection - Wired Server - Motherbd : Intel MATX 945G: S775; Intel MATRIX RAID; 8 USB 2.0; Dual Chan DDR2 667/533/400 RAM GIGABIT LAN Server - CPU : Intel Pentium D Dual Core 2.8GHZ 2 x 1MB L2 Cache Server - Ram : 1GB DDR2 533 RAM Server - Operating Sys : Windows 2003 Server SR1 Workstations 3 Custom 1 Dell Custom Station 1-3 - Motherbd: MATX LGA 775 DDR 400/333 Custom Station 1-3 - CPU: Pentium D 805 Processor Dual Core 2.66 GHZ, LGA 775 Socket, 533 MHZ Bus Speed, 2 x 1MB L2 Cache, 90NM Custom Station 1-3 - Operating Sys : Windows XP Pro OEM SP2 Dell - Dimension E520 : Intel Pentium D Processor w/ Dual Core Tech. 3GHZ, 800FSB, 2GB DDR2 SDRAM at 667MHZ Dell - Operating Sys : Windows XP Pro SP2 Internet Browser - Windows Internet Explorer Good Working Unit Microsoft Windows XP [Version 5.1.2600] (C) Copyright 1985-2001 Microsoft Corp. C:\Documents and Settings\aswift>ping 216.109.112.135 Pinging 216.109.112.135 with 32 bytes of data: Reply from 216.109.112.135: bytes=32 time=91ms TTL=51 Reply from 216.109.112.135: bytes=32 time=73ms TTL=51 Reply from 216.109.112.135: bytes=32 time=79ms TTL=52 Reply from 216.109.112.135: bytes=32 time=71ms TTL=51 Ping statistics for 216.109.112.135: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 71ms, Maximum = 91ms, Average = 78ms C:\Documents and Settings\aswift>ping yahoo.com Pinging yahoo.com [216.109.112.135] with 32 bytes of data: Reply from 216.109.112.135: bytes=32 time=179ms TTL=52 Reply from 216.109.112.135: bytes=32 time=149ms TTL=52 Reply from 216.109.112.135: bytes=32 time=178ms TTL=52 Reply from 216.109.112.135: bytes=32 time=158ms TTL=51 Ping statistics for 216.109.112.135: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 149ms, Maximum = 179ms, Average = 166ms C:\Documents and Settings\aswift>NBTSTAT -n Local Area Connection: Node IpAddress: [192.168.168.105] Scope Id: [] NetBIOS Local Name Table Name Type Status --------------------------------------------- WORKSTATION4 <00> UNIQUE Registered SERENITY <00> GROUP Registered WORKSTATION4 <20> UNIQUE Registered SERENITY <1E> GROUP Registered C:\Documents and Settings\aswift>ipconfig/all Windows IP Configuration Host Name . . . . . . . . . . . . : Workstation4 Primary Dns Suffix . . . . . . . : serenity.local Node Type . . . . . . . . . . . . : Unknown IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : serenity.local serenity.local Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : serenity.local Description . . . . . . . . . . . : Intel(R) 82562V 10/100 Network Conne ction Physical Address. . . . . . . . . : 00-19-D1-64-51-C9 Dhcp Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IP Address. . . . . . . . . . . . : 192.168.168.105 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.168.1 DHCP Server . . . . . . . . . . . : 192.168.168.50 DNS Servers . . . . . . . . . . . : 192.168.168.50 Lease Obtained. . . . . . . . . . : Friday, February 22, 2008 8:50:38 AM Lease Expires . . . . . . . . . . : Saturday, March 01, 2008 8:50:38 AM C:\Documents and Settings\aswift> Unit in Question Microsoft Windows XP [Version 5.1.2600] (C) Copyright 1985-2001 Microsoft Corp. C:\Documents and Settings\jswift>ping 216.109.112.135 Pinging 216.109.112.135 with 32 bytes of data: Reply from 216.109.112.135: bytes=32 time=72ms TTL=52 Reply from 216.109.112.135: bytes=32 time=71ms TTL=52 Reply from 216.109.112.135: bytes=32 time=71ms TTL=51 Reply from 216.109.112.135: bytes=32 time=77ms TTL=51 Ping statistics for 216.109.112.135: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 71ms, Maximum = 77ms, Average = 72ms C:\Documents and Settings\jswift>ping yahoo.com Pinging yahoo.com [216.109.112.135] with 32 bytes of data: Reply from 216.109.112.135: bytes=32 time=85ms TTL=52 Reply from 216.109.112.135: bytes=32 time=88ms TTL=51 Reply from 216.109.112.135: bytes=32 time=70ms TTL=52 Reply from 216.109.112.135: bytes=32 time=80ms TTL=51 Ping statistics for 216.109.112.135: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 70ms, Maximum = 88ms, Average = 80ms C:\Documents and Settings\jswift>NBTSTAT -n Local Area Connection 2: Node IpAddress: [192.168.168.100] Scope Id: [] NetBIOS Local Name Table Name Type Status --------------------------------------------- WORKSTATION1 <00> UNIQUE Registered SERENITY <00> GROUP Registered WORKSTATION1 <20> UNIQUE Registered SERENITY <1E> GROUP Registered C:\Documents and Settings\jswift>ipconfig/all Windows IP Configuration Host Name . . . . . . . . . . . . : Workstation1 Primary Dns Suffix . . . . . . . : serenity.local Node Type . . . . . . . . . . . . : Unknown IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No DNS Suffix Search List. . . . . . : serenity.local serenity.local Ethernet adapter Local Area Connection 2: Connection-specific DNS Suffix . : serenity.local Description . . . . . . . . . . . : Linksys EG1032 v2 Instant Gigabit Ne twork Adapter Physical Address. . . . . . . . . : 00-12-17-53-B3-C4 Dhcp Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IP Address. . . . . . . . . . . . : 192.168.168.100 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.168.1 DHCP Server . . . . . . . . . . . : 192.168.168.50 DNS Servers . . . . . . . . . . . : 4.2.2.1 4.2.2.2 Lease Obtained. . . . . . . . . . : Friday, February 22, 2008 10:05:28 A M Lease Expires . . . . . . . . . . : Saturday, March 01, 2008 10:05:28 AM C:\Documents and Settings\jswift> I hope this Information will help. Thank You for even taking the time to help!

02-22-2008, 01:04 PM	#4 (permalink)
johnwill Manager, Networking Forums Join Date: Sep 2002 Location: S.E. Pennsylvania, US Posts: 31,468 OS: XP-Pro, Vista, Linux Blog Entries: 1	Re: Sporatic Network Connectivity Issues That appears bogus, let's try this. TCP/IP stack repair options for use with Windows XP with SP2. Start, Run, CMD to open a command prompt: Reset TCP/IP stack to installation defaults. netsh int ip reset reset.log Reset WINSOCK entries to installation defaults: netsh winsock reset catalog Reboot the machine. __________________ If TSF has helped you, Tell us about it! or Donate to help keep the site up! Microsoft MVP - Windows Desktop Experience

02-22-2008, 02:47 PM	#5 (permalink)
swifty67nova Registered User Join Date: Feb 2008 Location: Tampa, FL. Posts: 11 OS: xp	Re: Sporatic Network Connectivity Issues Give him a chance johnwill fix it!!! Thank You! You are the best. DNS IP's match! Thank you again. This is a great forum and everyone is so nice. Again John you are the best.

02-23-2008, 10:07 AM	#6 (permalink)
johnwill Manager, Networking Forums Join Date: Sep 2002 Location: S.E. Pennsylvania, US Posts: 31,468 OS: XP-Pro, Vista, Linux Blog Entries: 1	Re: Sporatic Network Connectivity Issues Glad we were able to help. __________________ If TSF has helped you, Tell us about it! or Donate to help keep the site up! Microsoft MVP - Windows Desktop Experience