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Ethernet doesn't have have a valid IP configuration
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Old 01-03-2018, 20:11   #1
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Ethernet doesn't have have a valid IP configuration

Yesterday I turned on my laptop and I got a message saying I had limited network access.

Its conected via a ethernet.

Running the network diagonstic I got the erro message in the title.


The laptop had a dynamic IP and DNS.

I tried pluging in my 5GHz and got the same result.

I'm at a loss, the only thing I can think is that I tried a tool from the web that would find the best DNS for you.

I cannot access my router via the laptop, but can access MS Onedrive though.

I plugged my netbook into the same ethernet cable and can connect without issue, (Using this to tyoe this)

I googled and tried the options without luck.

Help.
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Old 01-03-2018, 21:08   #2
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Re: Ethernet doesn't have have a valid IP configuration

Have u tried rolling windows back to an earlier date? I know its risky but maybe in this case its worth it.
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Old 01-03-2018, 21:37   #3
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Re: Ethernet doesn't have have a valid IP configuration

Believe it or not I'm doing just that as I type.

Failing that ask the IT guy at work when I go back to work on Monday.

---------- Post added at 20:37 ---------- Previous post was at 20:13 ----------

Thank god for that.

A system restore point fixed it.

I still would like to know what went wrong.
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Old 01-03-2018, 21:53   #4
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Re: Ethernet doesn't have have a valid IP configuration

Quote:
Originally Posted by Hom3r View Post
Believe it or not I'm doing just that as I type.

Failing that ask the IT guy at work when I go back to work on Monday.

---------- Post added at 20:37 ---------- Previous post was at 20:13 ----------

Thank god for that.

A system restore point fixed it.

I still would like to know what went wrong.
I went through a stage where a windows update would always kill my network on a pc - for some reason the combination of the driver and the update would just stop networking from working, so I always had to roll it back
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Old 04-03-2018, 12:10   #5
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Re: Ethernet doesn't have have a valid IP configuration

Well it just did it again.

My laptop cannot find a network.
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Old 04-03-2018, 13:08   #6
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Re: Ethernet doesn't have have a valid IP configuration

Reboot modem and router and laptop, see what happens.
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Old 05-03-2018, 13:17   #7
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Re: Ethernet doesn't have have a valid IP configuration

Done all that.

I even gave the laptop a static IP.

I think it's a windows update that's buggered
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Old 05-03-2018, 13:20   #8
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Re: Ethernet doesn't have have a valid IP configuration

open command prompt as admin
type; netsh winsock reset
reboot machine
test network again

if this fails, open command prompt as admin again and type: ipconfig /all
what IP details is it showing for your network interface you are trying to use?..
- IPv4 address
- Subnet mask
- Default gateway
- DHCP server
- DNS server
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Old 09-03-2018, 15:02   #9
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Re: Ethernet doesn't have have a valid IP configuration

I have a similar problem with my desktop since the recent creators update.

Although I don't have fix I do have a workaround which works for me.

4 out of 5 time I switch my pc on to find no Ethernet adaptor installed.

I check my device manager and the main network adaptor has a yellow warning triangle.

Right click and scan for hardware changes fixed the problem until the next power on.

This may help for you?
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Old 09-03-2018, 16:01   #10
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Re: Ethernet doesn't have have a valid IP configuration

Quote:
Originally Posted by Morgrin View Post
I have a similar problem with my desktop since the recent creators update.

Although I don't have fix I do have a workaround which works for me.

4 out of 5 time I switch my pc on to find no Ethernet adaptor installed.

I check my device manager and the main network adaptor has a yellow warning triangle.

Right click and scan for hardware changes fixed the problem until the next power on.

This may help for you?
If that works for you then fair enough, I wouldn't put up with it and I suspect many others wouldn't either.
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Old 09-03-2018, 17:04   #11
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Re: Ethernet doesn't have have a valid IP configuration

I do agree its not the best, but rolling back may be more hassle.

I live in hope that a patch may fix it. To be honest I think its the Ethernet Lan driver is not 100% compatible with Win10.
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Old 09-03-2018, 17:39   #12
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Re: Ethernet doesn't have have a valid IP configuration

Rolling back is not a satisfactory option either.

Always check drivers with the manufacturers site rather than rely on microsoft update.

It may just be a case of microsoft not testing it and allowing it to be "digitally signed".
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Old 18-03-2018, 15:19   #13
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Re: Ethernet doesn't have have a valid IP configuration

I have partley solved it.

I remember the IT guy telling me to uninstall Avast AV (via removal tool).

I did and I'm up and running.

Now what do I do with regards to AV, try and reinstalling Avast or use another, I'm running 8.1
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Last edited by Hom3r; 18-03-2018 at 15:50.
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Old 18-03-2018, 16:11   #14
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Re: Ethernet doesn't have have a valid IP configuration

Quote:
Originally Posted by Hom3r View Post
I have partley solved it.

I remember the IT guy telling me to uninstall Avast AV (via removal tool).

I did and I'm up and running.

Now what do I do with regards to AV, try and reinstalling Avast or use another, I'm running 8.1
I would try Avast again and get rid of 8.1 and move to 10 it is far better.
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Old 18-03-2018, 16:22   #15
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Re: Ethernet doesn't have have a valid IP configuration

Quote:
Originally Posted by SnoopZ View Post
I would try Avast again and get rid of 8.1 and move to 10 it is far better.
Can I get it for free?
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