How to set up ethernet connection ?

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fakutya

Commendable
Jan 4, 2017
2
0
1,510
I used wifi untill recently but i moved into a different room that is too far from the modem we use , so i bought an UTP cable , plugged into my computer and the modem, but in windows it says under connectoins: " unidentifed network no connection" and in fact there is no internet connection. If i click on diagnose for the problams found it says :"ethernet doesn"t have a valid IP configuration. The wifi router is also plugged into the modem, maybe this is the problem?
What do i do? Is there sometheng with the connection that needs setup?,
OS is windows 10
Thank you so much !
 
Solution
jsmithepa

OK so you are double-NATing. This causes lots of problems, most likely including the one you are having currently. You are running 2 subnets. Configure WIFI router to an Access Point, then everything would be on one flat subnet as it's standard and most likely solve your problem.
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greens

greens

Splendid
Jan 27, 2012
3,773
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26,965
Sounds like your Modem has a router. Your Modem has more than one ethernet port?
You then mention a Wifi router being plugged into the modem also, this doesn't sound correct.

If your Modem has a router, which it sounds like it does, it won't play nicely with the second router you're using for Wifi.

A few options... You should disable the routing on one of them - probably the wifi. You'll want to set that device up as an access point only.

To solve the problem right now (but it will most likely come up again for you and anyone else on yoru network)

Hit Start
type CMD
hit enter
in command prompt type
ipconfig /release
wait for it to finish, when it is done type
ipconfig /renew
When it is done, wait a few seconds and your connection should refresh.

The routers are going to be fighting eachother for assignments. One router per network is a golden rule.
 
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ezskills

ezskills

Distinguished
Jul 13, 2013
673
3
19,615
Try this


1.Click on the START MENU and select CONTROL PANEL.

2.Select NETWORK AND INTERNET.

3.Select the NETWORK AND SHARING CENTER.

4.From the Tasks section on the left, select CHANGE ADAPTER SETTINGS.

5.Right-click the LOCAL AREA CONNECTION icon and select PROPERTIES.

6.From the User Access Control window, click CONTINUE.

7.Select INTERNET PROTOCOL VERSION 4 (TCP/IPv4), and then click the PROPERTIES button.

8.Make sure OBTAIN AN IP ADDRESS AUTOMATICALLY and OBTAIN DNS SERVER ADDRESS AUTOMATICALLY are selected.

9.Click the OK button to close the other open windows.

10.Restart the computer.
 
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F

fakutya

Commendable
Jan 4, 2017
2
0
1,510
Thanks you all for the answers.
@ezskills: OBTAIN AN IP ADDRESS AUTOMATICALLY and OBTAIN DNS SERVER ADDRESS AUTOMATICALLY were already selected by default, and i did not change that.

@jsmithepa: Yes there are 4 Lan Ports on the back of the modem. The first port is connected to the wifi router, and the second is connected to my laptop.

@greens: there is only one router, that is used for the wifi in the house (for other family members) this is connected to the modem. I have already tried the command prompt thing you mentioned , but nothing changed :(. The command prompt gives an error message though. This: http://imgur.com/a/GwkxS
 
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jsmithepa

jsmithepa

Polypheme
Jun 14, 2014
13,096
263
60,840

OK so you are double-NATing. This causes lots of problems, most likely including the one you are having currently. You are running 2 subnets. Configure WIFI router to an Access Point, then everything would be on one flat subnet as it's standard and most likely solve your problem.
 
Upvote 0 Downvote
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