Computers can't see each other

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  1. thewabbit
    Posts : 6
    Windows 7 Ultimate x64
       New #1

    Computers can't see each other


    Hey

    I have three computers connect to a home network:
    PC1 - Win XP desktop with wired connection. IP = 192.168.1.67
    PC2 - Win 7 Ultimate x64 desktop with wirelss connection. IP = 192.168.1.64
    PC3 - Win 7 Ultimate x32 laptop on wireless. IP = 192.168.1.75
    Router is a Thomson one which came with my isp (Telecom New Zealand)

    I've a few issues with it all..

    1. PC1 CANNOT see, ping or connect to any of the other computers.
    2. PC2 and PC3 CAN ping and connect to PC1 but cannot see it (when you explore network in explorer.)
    3. PC2 and PC3 CANNOT see, ping or connect to each other.

    NB: they are all on the same workgroup.

    What I want to happen is for each computer to connect to and see the other computers, and currently, this isn't happening

    Any help would be greatly appreciated in fixing this wee issue.

    Thank you
      My Computer
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  3. Roderunner
    Posts : 2,362
    Win7 H.Prem. 32bit+SP1
       New #2

    Hi thewabbit, set all your pc's to the settings from this Windows Secrets Lounge news letter.
      My Computer
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  4. Mystere
    Posts : 117
    Windows 7 64 bit SP1
       New #3

    When you are pinging, are you pinging the IP Addresses? Or are you pinging the computer name?

    Are the IP Addresses set manually? Or are they being autoconfigured by DHCP?
      My Computer
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  6. thewabbit
    Posts : 6
    Windows 7 Ultimate x64
    Thread Starter
       New #4

    Hi thewabbit, set all your pc's to the settings from this Windows Secrets Lounge news letter.
    Tried that, no success

    When you are pinging, are you pinging the IP Addresses? Or are you pinging the computer name?
    I'm going run then computer name, and also pinging the ip in cmd prompt. I get this result when PC2 pings PC3...

    C:\Users\Brute>ping 192.168.1.75

    Pinging 192.168.1.75 with 32 bytes of data:
    Reply from 192.168.1.64: Destination host unreachable.
    Reply from 192.168.1.64: Destination host unreachable.
    Reply from 192.168.1.64: Destination host unreachable.
    Reply from 192.168.1.64: Destination host unreachable.

    Ping statistics for 192.168.1.75:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

    It also happens when PC3 pings PC2, except ips are swapped
    Are the IP Addresses set manually? Or are they being autoconfigured by DHCP?
    DHCP
      My Computer
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  7. Mystere
    Posts : 117
    Windows 7 64 bit SP1
       New #5

    Ok, so Destination Host Unreachable is kind of interesting. What it means is that Windows doesn't know how to find the host, not that it can't ping it. This means there is no route to the subnet for some reason.

    Please post the output of a ipconfig /all on all 3 PC's, as well as a "route print" for all 3.
      My Computer
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  8. thewabbit
    Posts : 6
    Windows 7 Ultimate x64
    Thread Starter
       New #6

    PC1

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

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

    Windows IP Configuration

    Host Name . . . . . . . . . . . . : Familyroom
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Unknown
    IP Routing Enabled. . . . . . . . : Yes
    WINS Proxy Enabled. . . . . . . . : Yes
    DNS Suffix Search List. . . . . . : lan

    Ethernet adapter Local Area Connection:

    Connection-specific DNS Suffix . : lan
    Description . . . . . . . . . . . : Marvell Yukon 88E8056 PCI-E Gigabit
    Ethernet Controller
    Physical Address. . . . . . . . . : 00-19-21-48-19-5D
    Dhcp Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    IP Address. . . . . . . . . . . . : 192.168.1.67
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    IP Address. . . . . . . . . . . . : fe80::219:21ff:fe48:195d%7
    Default Gateway . . . . . . . . . : 192.168.1.254
    DHCP Server . . . . . . . . . . . : 192.168.1.254
    DNS Servers . . . . . . . . . . . : 192.168.1.254
    fec0:0:0:ffff::1%1
    fec0:0:0:ffff::2%1
    fec0:0:0:ffff::3%1
    Lease Obtained. . . . . . . . . . : 15 May 2011 11:21:50
    Lease Expires . . . . . . . . . . : 16 May 2011 11:21:50

    Ethernet adapter Hamachi:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Hamachi Network Interface
    Physical Address. . . . . . . . . : 7A-79-05-59-26-59
    Dhcp Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : No
    IP Address. . . . . . . . . . . . : 5.89.38.89
    Subnet Mask . . . . . . . . . . . : 255.0.0.0
    IP Address. . . . . . . . . . . . : fe80::7879:5ff:fe59:2659%8
    Default Gateway . . . . . . . . . :
    DHCP Server . . . . . . . . . . . : 5.0.0.1
    DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%2
    fec0:0:0:ffff::2%2
    fec0:0:0:ffff::3%2
    Lease Obtained. . . . . . . . . . : 15 May 2011 16:20:35
    Lease Expires . . . . . . . . . . : 15 May 2011 16:24:50

    Tunnel adapter Teredo Tunneling Pseudo-Interface:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-00
    Dhcp Enabled. . . . . . . . . . . : No
    IP Address. . . . . . . . . . . . : fe80::ffff:ffff:fffd%6
    Default Gateway . . . . . . . . . :
    NetBIOS over Tcpip. . . . . . . . : Disabled

    Tunnel adapter 6to4 Tunneling Pseudo-Interface:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : 6to4 Tunneling Pseudo-Interface
    Physical Address. . . . . . . . . : 05-59-26-59
    Dhcp Enabled. . . . . . . . . . . : No
    IP Address. . . . . . . . . . . . : 2002:559:2659::559:2659
    Default Gateway . . . . . . . . . : 2002:c058:6301::c058:6301
    DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%2
    fec0:0:0:ffff::2%2
    fec0:0:0:ffff::3%2
    NetBIOS over Tcpip. . . . . . . . : Disabled

    Tunnel adapter Automatic Tunneling Pseudo-Interface:

    Connection-specific DNS Suffix . : lan
    Description . . . . . . . . . . . : Automatic Tunneling Pseudo-Interface

    Physical Address. . . . . . . . . : C0-A8-01-43
    Dhcp Enabled. . . . . . . . . . . : No
    IP Address. . . . . . . . . . . . : fe80::5efe:192.168.1.67%2
    Default Gateway . . . . . . . . . :
    DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
    fec0:0:0:ffff::2%1
    fec0:0:0:ffff::3%1
    NetBIOS over Tcpip. . . . . . . . : Disabled

    Tunnel adapter Automatic Tunneling Pseudo-Interface:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Automatic Tunneling Pseudo-Interface

    Physical Address. . . . . . . . . : 05-59-26-59
    Dhcp Enabled. . . . . . . . . . . : No
    IP Address. . . . . . . . . . . . : fe80::5efe:5.89.38.89%2
    Default Gateway . . . . . . . . . :
    DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%2
    fec0:0:0:ffff::2%2
    fec0:0:0:ffff::3%2
    NetBIOS over Tcpip. . . . . . . . : Disabled


    C:\Documents and Settings\Peter>route print
    ===========================================================================
    Interface List
    0x1 ........................... MS TCP Loopback interface
    0x40003 ...00 19 21 48 19 5d ...... Generic Marvell Yukon Chipset based Ethernet
    Controller - Packet Scheduler Miniport
    0x40004 ...7a 79 05 59 26 59 ...... Hamachi Network Interface - Packet Scheduler
    Miniport
    ===========================================================================
    ===========================================================================
    Active Routes:
    Network Destination Netmask Gateway Interface Metric
    0.0.0.0 0.0.0.0 192.168.1.254 192.168.1.67 20
    5.0.0.0 255.0.0.0 5.89.38.89 5.89.38.89 20
    5.89.38.89 255.255.255.255 127.0.0.1 127.0.0.1 20
    5.255.255.255 255.255.255.255 5.89.38.89 5.89.38.89 20
    127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
    169.254.0.0 255.255.0.0 192.168.1.67 192.168.1.67 20
    192.168.1.0 255.255.255.0 192.168.1.67 192.168.1.67 20
    192.168.1.67 255.255.255.255 127.0.0.1 127.0.0.1 20
    192.168.1.255 255.255.255.255 192.168.1.67 192.168.1.67 20
    224.0.0.0 240.0.0.0 5.89.38.89 5.89.38.89 20
    224.0.0.0 240.0.0.0 192.168.1.67 192.168.1.67 20
    255.255.255.255 255.255.255.255 5.89.38.89 5.89.38.89 1
    255.255.255.255 255.255.255.255 192.168.1.67 192.168.1.67 1
    Default Gateway: 192.168.1.254
    ===========================================================================
    Persistent Routes:
    None
      My Computer
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  10. thewabbit
    Posts : 6
    Windows 7 Ultimate x64
    Thread Starter
       New #7

    PC2

    Microsoft Windows [Version 6.1.7601]
    Copyright (c) 2009 Microsoft Corporation. All rights reserved.

    C:\Users\Brute>ipconfig /all

    Windows IP Configuration

    Host Name . . . . . . . . . . . . : Brute-PC
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Hybrid
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No
    DNS Suffix Search List. . . . . . : lan

    Ethernet adapter Local Area Connection:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
    Physical Address. . . . . . . . . : 40-61-86-C6-00-A6
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Wireless LAN adapter Wireless Network Connection:

    Connection-specific DNS Suffix . : lan
    Description . . . . . . . . . . . : TP-LINK Wireless N Adapter
    Physical Address. . . . . . . . . : F4-EC-38-A3-86-19
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::d547:a1c:f183:a375%10(Preferred)
    IPv4 Address. . . . . . . . . . . : 192.168.1.78(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : Sunday, May 15, 2011 4:27:59 PM
    Lease Expires . . . . . . . . . . : Monday, May 16, 2011 4:27:59 PM
    Default Gateway . . . . . . . . . : 192.168.1.254
    DHCP Server . . . . . . . . . . . : 192.168.1.254
    DHCPv6 IAID . . . . . . . . . . . : 200600632
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-15-5F-8D-2F-40-61-86-C6-00-A6

    DNS Servers . . . . . . . . . . . : 192.168.1.254
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Tunnel adapter isatap.lan:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . : lan
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Teredo Tunneling Pseudo-Interface:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes
    IPv6 Address. . . . . . . . . . . : 2001:0:4137:9e76:427:11f0:8c43:4bf0(Prefe
    rred)
    Link-local IPv6 Address . . . . . : fe80::427:11f0:8c43:4bf0%12(Preferred)
    Default Gateway . . . . . . . . . : ::
    NetBIOS over Tcpip. . . . . . . . : Disabled

    Tunnel adapter isatap.{7257BB8B-47CA-49E7-B08F-C031AB7D5D30}:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes


    Microsoft Windows [Version 6.1.7601]
    Copyright (c) 2009 Microsoft Corporation. All rights reserved.

    C:\Users\Brute>route print
    ===========================================================================
    Interface List
    11...40 61 86 c6 00 a6 ......Realtek PCIe GBE Family Controller
    10...f4 ec 38 a3 86 19 ......TP-LINK Wireless N Adapter
    1...........................Software Loopback Interface 1
    14...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter
    12...00 00 00 00 00 00 00 e0 Teredo Tunneling Pseudo-Interface
    13...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #2
    ===========================================================================

    IPv4 Route Table
    ===========================================================================
    Active Routes:
    Network Destination Netmask Gateway Interface Metric
    0.0.0.0 0.0.0.0 192.168.1.254 192.168.1.78 25
    127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
    127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
    127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
    192.168.1.0 255.255.255.0 On-link 192.168.1.78 281
    192.168.1.78 255.255.255.255 On-link 192.168.1.78 281
    192.168.1.255 255.255.255.255 On-link 192.168.1.78 281
    224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
    224.0.0.0 240.0.0.0 On-link 192.168.1.78 281
    255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
    255.255.255.255 255.255.255.255 On-link 192.168.1.78 281
    ===========================================================================
    Persistent Routes:
    None

    IPv6 Route Table
    ===========================================================================
    Active Routes:
    If Metric Network Destination Gateway
    12 58 ::/0 On-link
    1 306 ::1/128 On-link
    12 58 2001::/32 On-link
    12 306 2001:0:4137:9e76:427:11f0:8c43:4bf0/128
    On-link
    10 281 fe80::/64 On-link
    12 306 fe80::/64 On-link
    12 306 fe80::427:11f0:8c43:4bf0/128
    On-link
    10 281 fe80::d547:a1c:f183:a375/128
    On-link
    1 306 ff00::/8 On-link
    12 306 ff00::/8 On-link
    10 281 ff00::/8 On-link
    ===========================================================================
    Persistent Routes:
    None

    C:\Users\Brute>
      My Computer
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  11. thewabbit
    Posts : 6
    Windows 7 Ultimate x64
    Thread Starter
       New #8

    PC3

    Microsoft Windows [Version 6.1.7601]
    Copyright (c) 2009 Microsoft Corporation. All rights reserved.

    C:\Users\Hamish>ipconfig /all

    Windows IP Configuration

    Host Name . . . . . . . . . . . . : Hamish-PC
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Hybrid
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No
    DNS Suffix Search List. . . . . . : lan

    Wireless LAN adapter Wireless Network Connection 2:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter
    Physical Address. . . . . . . . . : 00-26-C7-BF-70-4F
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Wireless LAN adapter Wireless Network Connection:

    Connection-specific DNS Suffix . : lan
    Description . . . . . . . . . . . : Intel(R) WiFi Link 1000 BGN
    Physical Address. . . . . . . . . : 00-26-C7-BF-70-4E
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::dc5b:e96e:96eb:36d1%11(Preferred)
    IPv4 Address. . . . . . . . . . . : 192.168.1.79(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : Sunday, 15 May 2011 4:29:17 p.m.
    Lease Expires . . . . . . . . . . : Monday, 16 May 2011 4:29:17 p.m.
    Default Gateway . . . . . . . . . : 192.168.1.254
    DHCP Server . . . . . . . . . . . : 192.168.1.254
    DHCPv6 IAID . . . . . . . . . . . : 385885895
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-15-31-C2-E2-1C-75-08-24-80-F6

    DNS Servers . . . . . . . . . . . : 192.168.1.254
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Ethernet adapter Local Area Connection:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Atheros AR8152 PCI-E Fast Ethernet Contro
    ller (NDIS 6.20)
    Physical Address. . . . . . . . . : 1C-75-08-24-80-F6
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter isatap.lan:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Teredo Tunneling Pseudo-Interface:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    C:\Users\Hamish>route print
    ===========================================================================
    Interface List
    15...00 26 c7 bf 70 4f ......Microsoft Virtual WiFi Miniport Adapter
    11...00 26 c7 bf 70 4e ......Intel(R) WiFi Link 1000 BGN
    10...1c 75 08 24 80 f6 ......Atheros AR8152 PCI-E Fast Ethernet Controller (NDI
    S 6.20)
    1...........................Software Loopback Interface 1
    14...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter
    13...00 00 00 00 00 00 00 e0 Teredo Tunneling Pseudo-Interface
    ===========================================================================

    IPv4 Route Table
    ===========================================================================
    Active Routes:
    Network Destination Netmask Gateway Interface Metric
    0.0.0.0 0.0.0.0 192.168.1.254 192.168.1.79 25
    127.0.0.0 255.0.0.0 On-link 127.0.0.1 306
    127.0.0.1 255.255.255.255 On-link 127.0.0.1 306
    127.255.255.255 255.255.255.255 On-link 127.0.0.1 306
    192.168.1.0 255.255.255.0 On-link 192.168.1.79 281
    192.168.1.79 255.255.255.255 On-link 192.168.1.79 281
    192.168.1.255 255.255.255.255 On-link 192.168.1.79 281
    224.0.0.0 240.0.0.0 On-link 127.0.0.1 306
    224.0.0.0 240.0.0.0 On-link 192.168.1.79 281
    255.255.255.255 255.255.255.255 On-link 127.0.0.1 306
    255.255.255.255 255.255.255.255 On-link 192.168.1.79 281
    ===========================================================================
    Persistent Routes:
    None

    IPv6 Route Table
    ===========================================================================
    Active Routes:
    If Metric Network Destination Gateway
    1 306 ::1/128 On-link
    11 281 fe80::/64 On-link
    11 281 fe80::dc5b:e96e:96eb:36d1/128
    On-link
    1 306 ff00::/8 On-link
    11 281 ff00::/8 On-link
    ===========================================================================
    Persistent Routes:
    None

    C:\Users\Hamish>
      My Computer
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  12. Mystere
    Posts : 117
    Windows 7 64 bit SP1
       New #9

    First thing I notice is that you have Hamachi installed on PC1, and it's configured. This may be interfering with things.

    Next thing I notice is that you have IPv6 enabled. I've seen this interfere, especially with wireless routers. Try going into your network adapter settings and unchecking the IPv6 checkboxes. Make sure you reboot.

    Finally, the IP Addresses listed in the ipconfig /all are not the same IP addresses that you posted. Were you pinging the wrong addresses?
      My Computer
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  13. thewabbit
    Posts : 6
    Windows 7 Ultimate x64
    Thread Starter
       New #10

    Finally, the IP Addresses listed in the ipconfig /all are not the same IP addresses that you posted. Were you pinging the wrong addresses?
    Before i did all that i had reset the router and restarted all the pcs, that could be why. And ill change himachi and ipv6 when i get home
      My Computer
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