2 pc's keep trying to use same IP address.

  bumpkin 16:24 29 May 15
Locked

Not an everyday occurence or a difficult thing to sort out but I am curious as to why it happens. I get the message "IP conflict, another PC on the network is using the same IP address" or something like that. Any suggestions, as I say it is no big problem but never had it in the past up until about 2mnths back.

  bumpkin 16:30 29 May 15

Win 7 32bit on 2 desktops one AMD one Pent.

  Fruit Bat /\0/\ 16:50 29 May 15

check your router settings

have you got one machine with a static address if so move the numbers up

My humax box is set as a static address and to stop conflicts I have set it as 168. 65

while the router assigns the other machines as 168.3 168.4 etc.

  Secret-Squirrel 17:48 29 May 15

Bumpkin, does anything lose Internet connectivity when you get that warning? If not then the easiest thing to do is to ignore it if you haven't knowingly assigned any fixed IP addresses.

That warning is quite common and most of the time everything works as normal.

Restarting your router will force all devices to receive new IP addresses so you can try that if they're all set to get IP addresses automatically.

If you have set a device with a fixed IP address then change it by making the last number really high like 200 - for example 192.168.0.200

  bumpkin 19:54 29 May 15

Thanks for the replies, I do not have static addresses. I do lose connectivity when it occurs but find that a reboot sorts it in a few seconds (10 to 20) and then it may not happen again for a few days or it may happen a few times in one day. Last time it occured was yesterday and I had to release/renew IP address in command.

  Secret-Squirrel 20:37 29 May 15

"I do lose connectivity when it occurs............"

Ah, in that case assigning a fixed IP address to the most affected PC should solve that problem. I can tell you how to do it in the morning. In the meantime, open a Command Prompt window, type ipconfig /all and let me know the IPv4 Address, Default Gateway address, and DNS server address.

  bumpkin 21:40 29 May 15

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

C:\Users\Ray>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Ray-PC Primary Dns Suffix . . . . . . . : Node Type . . . . . . . . . . . . : Hybrid IP Routing Enabled. . . . . . . . : No WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller Physical Address. . . . . . . . . : 54-A0-50-E7-90-2C DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . : Description . . . . . . . . . . . : 802.11 USB Wireless LAN Card Physical Address. . . . . . . . . : 7C-DD-90-1A-4B-05 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::9db8:dba7:8de8:a18c%11(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.1.2(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : 29 May 2015 19:29:52 Lease Expires . . . . . . . . . . : 30 May 2015 21:22:46 Default Gateway . . . . . . . . . : 192.168.1.1 DHCP Server . . . . . . . . . . . : 192.168.1.1 DHCPv6 IAID . . . . . . . . . . . : 243064208 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1C-72-5A-40-7C-DD-90-1A-4B-05

DNS Servers . . . . . . . . . . . : 192.168.1.1 192.168.1.1 NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{B022164D-329C-41F1-9E89-C9052DBE30EA}:

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:

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. . . . . . . . . . . : 2001:0:5cf2:8410:2ce0:6c2:3f57:fefd(Prefe rred) Link-local IPv6 Address . . . . . : fe80::2ce0:6c2:3f57:fefd%12(Preferred) Default Gateway . . . . . . . . . : :: NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter isatap.{7BBCD300-1E9E-4341-998E-A7304320260B}:

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

C:\Users\Ray>

  bumpkin 21:44 29 May 15

Sorry SS, I did not fully understand what you wanted so tried to copy and paste and got the above.

  Secret-Squirrel 08:57 30 May 15

Thanks for the info Bumpkin - here's what you need to do on one of the affected PCs:

Go to Control Panel -> Network & Sharing Center -> "Change adapter settings" (top-left) -> right-click on the "Wireless Network Connection" icon -> Properties.

In the Properties window, select "Internet Protocol Version 4 (TCP/IPv4)" -> "Properties" button.

Put a dot in the "Use the following address" options and enter the following:

IP address: 192.168.1.200

Subnet mask: 255.255.255.0

Default gateway: 192.168.1.1

Preferred DNS server: 192.168.1.1

Click OK a few times to exit all those windows.

NOTE: Those details are specific to your router, so if you change it, remember to go back in and set everything back to the "obtain automatically" options. If you don't then you may not get an Internet connection.

  bumpkin 10:42 30 May 15

Thanks SS, I shall do that if or when it happens again.

  Secret-Squirrel 11:38 30 May 15

"............and then it may not happen again for a few days or it may happen a few times in one day.................Thanks SS, I shall do that if or when it happens again.."

It's clearly been a nuisance so I recommend you do it now. It'll only take a couple of minutes of your time and it will solve the problem.

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