Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Local Area Connection doesn't have a valid IP configuration

14 Mar 2015   #11

Windows 7 Pro x64 Windows 10 Pro x64

A modem is a modem and a router is a router.

The switch is not the problem.

The pc is not the problem.

My System SpecsSystem Spec
14 Mar 2015   #12

Windows 7 Pro

Quote   Quote: Originally Posted by AddRAM View Post
A modem is a modem and a router is a router.
Far from it, my modem is also a router, for example. A router doesn't have to necessarily be a separate box, many modems these days come with both integrated routing and switching capabilities. Whether the router will be integrated into the modem box or a separate device - it's irrelevant.

What is also irrelevant is the brand of his modem. Networking devices operate on standards. It's clear that he has a DHCP issue, so a look at the dhcp settings is the best way to determine the problem.

P.S. I just saw that you edited your earlier post...with tons of erroneous information, to boost. You have no idea what a router does, apparently. So I will explain it to you really quick:

routers simply connect networks and they do so based on IP addresses (Layer 3 in the OSI model)

As far as connecting your modem directly to your computer - you can't do this unless:

1. You have entered a proper static IP.
2. Your modem offers DHCP services.

If your modem has DHCP - that means it has a router, as only routers (and layer 3 switches) can switch traffic based on IP addresses. Which also brings us to NAT, another router feature that a modem would not have. What the modem does, let's say a cable modem, is to translate your Ethernet frames to DOCSIS, for instance.
My System SpecsSystem Spec
16 Mar 2015   #13

Windows 10 Pro X64

Here is a nice, simple (sort of) explanation of what a switch is and does.

No, a switch cannot perform NAT and translate public(s) IP addresses into private addresses.
A switch is a network device that filters and forwards packets between LAN segments. Switches operate at the data link layer (layer 2). So, they are not aware of IP addresses which are network layer (layer 3). A switch keeps a record of the MAC addresses of all the devices connected to it. With this information, a switch can identify which system is sitting on which port. So when a frame is received, it knows exactly which port to send it to, without significantly increasing network response times.
My System SpecsSystem Spec


 Local Area Connection doesn't have a valid IP configuration

Thread Tools

Similar help and support threads
Thread Forum
Local area connection doesn't have a valid IP configuration
Hey everyone, I'm knew to the forum :) First time posting. So my problem is that we just got a knew ISP like 4-5weeks ago and they gave us the modem and it only has 1 port so we bought a TP-LINK TL-WR841N. It was all good until I got the error massage one morning that no valid IP configuration...
Network & Sharing
Local Area Connection Doesn't have a valid IP configuration.
Hi, I have a windows 7 64bit PC. Recently my internet cut out and it sait "Unidentified network No Internet access". I tried the troubleshooter and it told me that my Local Area Connection Doesn't have a valid IP configuration. I have searched up many solutions and none of them worked. So can you...
Network & Sharing
local area connection doesn't have a valid ip configuration
I have re-install the network adapters,it is work but when I reboot the computer , it can not access the network what should i do?
Network & Sharing
Local Area Connection doesn't have a valid IP configuration
Hi. At home i only have a wifi internet connection and i dont have a reciever for my desktop so i was using my laptop to share the internet connection through a Lan cable But today all of a sudden my desktop cant connect to the internet anymore because "Local Area Connection doesn't have a valid...
Network & Sharing
Local Area Connection doesn't have valid ip configuration
I've been at this all day its a brand new computer(that might be the problem right there but i doubt it) I tried renew and release method and have unidentified network Public network as well even though i do not have wireless on the comp. The local area connection says no network access as well....
Network & Sharing
Local Area Connection doesn't have a valid IP configuration
Recently, I can't connect to the internet. when I tried to troubleshoot the problem, it gave me the following line : "Local Area Connection doesn't have a valid IP configuration" I have two PCs and when I connect the mothem/router to the second PC, everything is okay and internet is on (So I am...
Network & Sharing

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 22:22.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App