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IP conflict issues

We have multiple PCs using our home network (Linksys WRT54g router) and occasionally get an IP address conflict. Where do I find those settings in the router?

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  • garyam Dec 22, 2008

    Thanks JSGRepair, but I know how to access the router to find the basic IP address. However, what I can't find is a list of all the devices (pcs) currently accessing the secured router so I can try and determine where the conflict is coming from. I understand the router assigns a new IP address to each device...where do I find that list?

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Open explorer, type in 192.168.1.1
Type in router UserName and password.

If you don't know the UserName and Password check the manual for the default settings.

Have a nice day!

Posted on Dec 22, 2008

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How to resolve Belkin N150 conflicting with Linksys WRT54G


Both the routers are having the same default IP addresses that's why they are conflicting.
Put only one router in the switch connected the a PC on the same LAN.
Open your browser and put the default IP address (like for most of the routers 192.168.1.1 or 192.168.0.1), hit enter and give the login ID and password (in most of the cases, admin/password orv admin/admin), go t configuration> IP settings> Static IP Mode> Change the IP from 192.168.x.1 to 192.168.x.2 (or any other other number except 1 and <254).
Save and reboot.
Now enjoy both routers plugged in simultaneously in the same LAN. :)

Sep 03, 2012 | Belkin Basic Wireless Router

Tip

IP Conflicts in a work place


An IP address conflict occurs when two computers on a LAN or the Internet have been assigned the same IP. IP conflicts between two computers normally render either one or both of them unusable for network operations.

How IP Address Conflicts Happen

Two computers can acquire conflicting IP addresses in any of several ways:

· A system administrator assigns two computers on the LAN the same Static IP Address.

· A system administrator assigns a computer a static IP address within the local network's DHCP range (dynamic IP range), and the same address is automatically assigned by the LAN DHCP server.

· A malfunction in the network's DHCP server allows the same dynamic address to automatically be assigned to multiple computers.

· An ISP accidentally assigns two customers the same IP address (either statically or dynamically).

· A mobile computer is put into standby / hibernate mode and then awakened later.

Note that other forms of IP conflicts can also occur on a network. For example, one computer may experience an IP address conflict with itself if that computer is configured with multiple Network Adapters. System administrators may also create IP conflicts by accidentally connecting two ports of a network switch or router to each other.

Recognizing IP Address Conflicts

On most Microsoft Windows computers, if you attempt to set a fixed (static) IP address that is already active on the local network, you will receive the following pop-up error message:

The static IP address that was just configured is already in use on the network. Please reconfigure a different IP address.

On newer Microsoft Windows computers having dynamic IP conflicts, you should receive a balloon error message in the Taskbar as soon as the operating system detects the issue:

There is an IP address conflict with another system on the network.

Sometimes, especially on older Windows computers, a message similar to the following may instead appear in a pop-up window:

The system has detected a conflict for IP address...

On Mac or Linux computers, a similar message will normally appear on screen.

Resolving IP Address Conflicts

Try the following remedies for IP conflicts:

1. For networks where IP addresses are fixed (statically assigned), ensure each local host is configured with a unique IP address.

2. If your computer has a dynamically assigned address, releasing and renewing its IP address can workaround IP address conflicts.
3. If your home router is believed to have a faulty DHCP server causing IP conflicts on the home network, upgrading the router firmware may resolve this problem.

on Nov 24, 2010 | Computers & Internet

1 Answer

I have a smartbook and i need to know who give out an ip address, is it linksys or the cable company?


The wireless router issues an IP address to your all your computers.
The ISP issues an IP address to your cable modem which is connected to your wireless router and the wireless router re-issues a local IP addresses to all the computers on your local network so all your computers on your network can access the Internet and to each other cpmputer.

May 25, 2012 | Linksys WRT54G/WUSB54G Router...

1 Answer

Linksys WRT54G can't connect 3rd wireless computer


log into the WRT54G wireless router and ensure that you do not have it set up for only handing out 4 IP addresses also check the laptop to see if it is set to have a DHCP or static IP address, if it has a static IP and your network is dynamic then this is why it wont connect.

if this resolves your issue and you are happy with the answer please grade me accordingly.

thanks

Aug 25, 2009 | Linksys Wireless-G WRT54GS Router...

1 Answer

Lost the install CD


hi,
it should be an ip conflict.I believe you are using both routers at same time which can give same ip address (as both routers ip range is same).hence by disconnecting one router(from network/power) will make your ip conflict resolved.
secondly there is no need of linksys installation cd as it will do more harm than good.routers dont need any software to run where as network adapters need drivers.if you have any further doubts ,you can directly post it.
thank you

Dec 11, 2008 | Linksys Wireless-G Broadband Router

1 Answer

Loosing connection frequently


Your computer has an IP addy and your router has its own IP addy. Try uninstalling the router and its software, reboot, and reinstall everything, this may clear up the conflict. If not you will have to go into the router(via the internet) and reconfigure the router.

anaanymous

Oct 11, 2008 | Linksys Wireless-G WRT54G Router

1 Answer

Internet access problem with a Linksys 54g router


Try setting the default gateway on the laptop to the ip address of your ICS gateway machine. Some routers separate the wireless and LAN connections on different subnets.

Try comparing your laptops ip information with that of one of the working wired computers. You can do this by going to Start up to run and type cmd then click "ok"

At the black prompt screen type "ipconfig" without the "".

You want to compare the IP Address, Submet Mask, and Default Gateway.

If one has an ip of 192.168.1.* and the other has 192.168.0.* then the wireless and wired are on seperate networks.

If the subnet masks are something like 255.255.255.0 and 255.255.255.1 they are on seperate subnets. Both should be fixable by putting in the same default gateway.

For example if your ICS gateway is 192.168.1.1 then set that as the default gatway on the wireless laptop. This can be done by going to start >> Control Panel >> Network Connections then right click your wireless connection and goto properties then double click on the "Internet Protocol (tcp/ip)" option. This will list all of your ip information (if its static) if its dynamic (ip gotten from router) you can still click "Use the following DNS server address" and set preffered dns to the gateway ICS ip. Or click "Advanced" and click Add under Default Gateways and add the gateway ICS ip there.


Jun 20, 2008 | Computers & Internet

1 Answer

Cannot connect with ATT modem


Connect your pc to the ATT box. If online, check the ip address of the computer. If the ip address is 192.168.1.x, then you just have to change the router ip address. The wrt54g ip is 192.168.1.1, it may be having conflict with the ATT modem. Change the wrt54g ip to 192.168.2.1

Good Luck

Mar 05, 2008 | Linksys Wireless-G WRT54G Router

1 Answer

Router issues


Hi Pzarek,

The first thing that comes to mind is that your Linksys modem is using the same IP address as the router and it's causing a conflict. The quickest way to find out if there is a conflict is to get into the administration setup on the router and manually change the IP address of the router itself (currently it's most likely 192.168.1.1 - change it to 192.168.1.250). Linksys has most of its devices that provide dynamic IPs set to 192.168.1.1 by default so I would suggest that.

To log into the router (assuming you have your computer plugged into the router):

Bring up Internet Explorer and type in 192.168.1.1 into the address bar.

When it asks for a username/password, type in 'admin' for the username and 'admin' for the password (without the quotes).

You can change the IP address from 192.168.1.1 to 192.168.1.250 on the first page that comes up.

If you're unable to access the setup, make sure the router is powered up and hold in the Reset button on the back for 30 full seconds. At that point the information provided will allow you to access it.

Ben

Feb 18, 2008 | Linksys Wireless-G WRT54G Router

1 Answer

Pls. help


When dealing with a router there are multiple IP address scenarios, on the internet service provider's (ISP) side you can have either a static or dynamic IP address. I believe most routers by default are set to accept a dynamic IP address from the ISP. Where the ISP permits the router can also assign IP addresses to each device that attaches to it allowing a single ISP connection to be shared by multiple computers. This is also generally the default for routers purchased for home use and the wireless adapters also accept the dynamic IP assignment from the Router. With the logical discussion out of the way I believe you wish to discuss the physical connections to be established. Again this is a generic discussion not knowing your specific environment. port types - I will refer to phone ports (technically RJ-11 either two or 4 wires (these cables plug snugly into phone jacks and modem connectors) and ethernet ports (technically RJ-45 which are 8 wires and to big to fit in phone and modem ports) First you have a connection provided by the ISP for DSL this is your phone line where filters are attached to your voice phones and an unfiltered phone connection goes into the DSL modem's phone port often with an ethernet port. If you have cable generally the cable company provides a connection to a cable modem which has an ethernet or other port to connect to your system. The ethernet port generally connects to the wan port (generally separate) of your wrt54g router with an ethernet cable. Computers can be attached to the wrt54g router using the 4 ethernet ports in a group provided they have an ethernet port too. Wireless cards connect to the wrt54g router through radio waves and with antennas on the router and often internal to the wireless adapter (often embedded in a notebook computer today). These details are enclosed with your ISP's instructions and the Linksys router instructions often with pictures to help the explanation.

see
http://www.linksys.com/servlet/Satellite?c=L_Product_C2&childpagename=US%2FLayout&pagename=Linksys%2FCommon%2FVisitorWrapper&cid=1149562300349
if you do not have the user manual.

Nov 30, 2007 | ASUS AAM6010EV Router

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