My PC has disappeared from the local network

[ralen]

Hi,

Can anyone pls help me get my main PC back onto my local network.

On my network I have 3 PC's and 2 laptops.

2 PC's- wired
1 PC- Wireless
2 Laptops- Wireless

One of my main PC's has now disappeared from the network so i'm unable to access my files from other computers.

Can anyone help me troubleshoot this problem? I tried going through the network setup wizard again, but it's not helped.

All other computers and laptops are still able to search each others files, it's just this one main PC that can't

Any help greatly appreciated.

Thanks

[johnwill]

On the machine in question, can you ping the other computers by name or IP address? Does this computer still connect to the Internet?

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

Type the following two commands:

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.

[ralen]

Originally Posted by johnwill

On the machine in question, can you ping the other computers by name or IP address? Does this computer still connect to the Internet?

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

Type the following two commands:

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.

Hi,

Thanks for the reply.

I done as you said and heres what I copied from command prompt:

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

C:\Documents and Settings\FUK1>NBTSTAT -n

Local Area Connection:
Node IpAddress: [192.168.1.3] Scope Id: []

                NetBIOS Local Name Table

       Name               Type         Status
    ---------------------------------------------
    ***            <00>  UNIQUE      Registered
    OFFICE         <00>  GROUP       Registered
    ***            <20>  UNIQUE      Registered
    OFFICE        <1E>  GROUP       Registered

C:\Documents and Settings\FUK1>IPCONFIG / ALL

Error: unrecongnized or incomplete command line.

USAGE:
    ipconfig [/? | /all | /renew [adapter] | /release [adapter] |
              /flushdns | /displaydns | /registerdns |
              /showclassid adapter |
              /setclassid adapter [classid] ]

where
    adapter         Connection name
                   (wildcard characters * and ? allowed, see examples)

    Options:
       /?           Display this help message
       /all         Display full configuration information.
       /release     Release the IP address for the specified adapter.
       /renew       Renew the IP address for the specified adapter.
       /flushdns    Purges the DNS Resolver cache.
       /registerdns Refreshes all DHCP leases and re-registers DNS names
       /displaydns  Display the contents of the DNS Resolver Cache.
       /showclassid Displays all the dhcp class IDs allowed for adapter.
       /setclassid  Modifies the dhcp class id.

The default is to display only the IP address, subnet mask and
default gateway for each adapter bound to TCP/IP.

For Release and Renew, if no adapter name is specified, then the IP address
leases for all adapters bound to TCP/IP will be released or renewed.

For Setclassid, if no ClassId is specified, then the ClassId is removed.

Examples:
    > ipconfig                   ... Show information.
    > ipconfig /all              ... Show detailed information
    > ipconfig /renew            ... renew all adapters
    > ipconfig /renew EL*        ... renew any connection that has its
                                     name starting with EL
    > ipconfig /release *Con*    ... release all matching connections,
                                     eg. "Local Area Connection 1" or
                                         "Local Area Connection 2"

C:\Documents and Settings\FUK1>

To answer your other questions-

I dont know how to ping the other computers so unable to answer that question.

The PC in question is the one I'm on right now, so its connecting to the internet fine.

I've thought of something that maybe something to do with why it's disappeared from the network-

About a week ago, I had to setup port forwarding on this PC in my router control panel. I'm pretty sure that it's since then this has been happening. I can't quite remember what I done exactly, but I'm sure I had to setup a new ip address or something along those lines.

The thing is, I still have the network setup disk that I created when I originally setup this LAN, and I've tried running this again on my PC, but its still not findable.

Thanks :)

[johnwill]

Please type the IPCONFIG /ALL correctly, I don't need to see the usage information. Note that the ONLY space is before the /.

To Ping.


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

PING <computer_name>

or

PING <IP Address>

[ralen]

Originally Posted by johnwill

Please type the IPCONFIG /ALL correctly, I don't need to see the usage information. Note that the ONLY space is before the /.

To Ping.


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

PING <computer_name>

or

PING <IP Address>

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

C:\Documents and Settings\FUK1>NBTSTAT -n

Local Area Connection:
Node IpAddress: [192.168.1.3] Scope Id: []

                NetBIOS Local Name Table

       Name               Type         Status
    ---------------------------------------------
    ***            <00>  UNIQUE      Registered
    OFFICE        <00>  GROUP       Registered
    ***            <20>  UNIQUE      Registered
    OFFICE         <1E>  GROUP       Registered

C:\Documents and Settings\FUK1>IPCONFIG /ALL

Windows IP Configuration

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

Ethernet adapter Local Area Connection:

        Connection-specific DNS Suffix  . :
        Description . . . . . . . . . . . : VIA Rhine II Fast Ethernet Adapter
        Physical Address. . . . . . . . . : 00-16-17-CE-F8-BB
        Dhcp Enabled. . . . . . . . . . . : Yes
        Autoconfiguration Enabled . . . . : Yes
        IP Address. . . . . . . . . . . . : 192.168.1.3
        Subnet Mask . . . . . . . . . . . : 255.255.255.0
        Default Gateway . . . . . . . . . : 192.168.1.1
        DHCP Server . . . . . . . . . . . : 192.168.1.1
        DNS Servers . . . . . . . . . . . : 192.168.1.1
        Lease Obtained. . . . . . . . . . : 07 February 2008 04:23:15
        Lease Expires . . . . . . . . . . : 08 February 2008 04:23:15

C:\Documents and Settings\FUK1>

I am trying to do the "ping" thing just now. Will post when I work it out

[ralen]

OK- Worked that out now...


Pinging "Officepc" (Wired connection)-

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

C:\Documents and Settings\FUK1>PING Officepc

Pinging Officepc [192.168.1.2] with 32 bytes of data:

Reply from 192.168.1.2: bytes=32 time<1ms TTL=128
Reply from 192.168.1.2: bytes=32 time<1ms TTL=128
Reply from 192.168.1.2: bytes=32 time<1ms TTL=128
Reply from 192.168.1.2: bytes=32 time<1ms TTL=128

Ping statistics for 192.168.1.2:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:\Documents and Settings\FUK1>

Pinging Vaio (Wireless connection):

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

C:\Documents and Settings\FUK1>PING Vaio

Pinging Vaio [192.168.1.4] with 32 bytes of data:

Reply from 192.168.1.4: bytes=32 time=1ms TTL=128
Reply from 192.168.1.4: bytes=32 time=1ms TTL=128
Reply from 192.168.1.4: bytes=32 time=1ms TTL=128
Reply from 192.168.1.4: bytes=32 time=1ms TTL=128

Ping statistics for 192.168.1.4:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 1ms, Maximum = 1ms, Average = 1ms

C:\Documents and Settings\FUK1>

Cheers

[johnwill]

OK, we need to get serious.

First off, shutdown all the computers, we're going to get a fresh start.

Boot them up, one at a time. Wait 15 minutes after the last computer boots (time for Microsoft browsing service to settle down).

I'd like to see this for each machine.

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

Type the following two commands:

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.