Windows 7: 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

Hi thewabbit, set all your pc's to the settings from this Windows Secrets Lounge news letter.

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?

Tried that, no success

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
DHCP

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.

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

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>

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>

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?

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