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Mr Snotty
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# 206143 11-Dec-2016 19:57
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Heya

Wonder if anyone knows - had 2 instances (both my parents laptop and also a laptop I have) of the update KB3201845 breaking networking (both WiFi and Ethernet). The WiFi / Ethernet connects however no internet activity passes through. This is potentially bad especially in my parents case since I can't remote support to fix it.

 

Anyone else seen this issue + know of a fix?

 

Edit: Just found a fix... Maybe I should try and Google more:

 

Go into cmd.exe and type the following:

 

netsh winsock reset catalog
netsh int ipv4 reset reset.log
ipconfig /renew





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  # 1686174 11-Dec-2016 20:06
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netsh winsock reset catalog

 

netsh int ipv4 reset reset.log





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  # 1686176 11-Dec-2016 20:11
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Yep, seen this a few times. Usually just an ipconfig /release & /renew will sort it.




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  # 1686190 11-Dec-2016 20:15
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Yes had this with the neighbors laptop. I did an uninstall/reinstall of the network adapters to fix it. Wifi and ethernet


BDFL - Memuneh
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Mr Snotty
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  # 1686203 11-Dec-2016 21:04
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Yeah got my parents to do it (not Tech savvy - I normally remote into their computer) and it fixed it. Was more confusing since they couldn't tell me the issue. No internet doesn't explain much :)

I just used that KB and found the information from a site regarding it breaking DHCP after installation. Looked at my surfaces update history to find it. Glad it was a simple fix.




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  # 1686235 11-Dec-2016 21:41
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I have also had this from time to time on my laptop (wi-fi only). It sounds very much like the same issue but I have usually been able to fix it by reconnecting to the wi-fi. Tonight that didn't work and only rebooting finally brought it back.

 

 





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  # 1686237 11-Dec-2016 21:42
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freitasm:

 

Not sure it's this specific KB as I read that the first reports of problems appeared a couple of days before the KB was released. 

 

 

I've only just applied KB3201845 today yet I had the problem on two computers last week. It was easy to resolve because this issue (or something very similar) has happened before now.


 
 
 
 


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  # 1686240 11-Dec-2016 21:44
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This appears to be a problem on a massive scale. I've heard of a few big ISP helpdesks in NZ receiving very large numbers of calls about this.

 

 


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  # 1686250 11-Dec-2016 22:09
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We've also had quite a few calls about this issue since Tuesday, prior to kb3201845.
Seems to be affecting Windows 10 machines, both wired and wireless connections.
A restart seems to be the easy fix - the shutdown button doesn't do a proper shutdown in Win10 so doesn't solve it.

 

Main thread on Microsoft forums:
Wi-Fi doesn't have a valid IP configuration

 

Acknowledgement that MS is aware of it:
Problems connecting to the internet


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  # 1686259 11-Dec-2016 22:46
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  # 1686362 12-Dec-2016 10:06
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a restart fixes this temporarily

 

a permanent fix is expected to be released Weds this week your time as an update


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  # 1686370 12-Dec-2016 10:26
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Had to help a couple of others with this issue who weren't tech savvy. Easiest fix seems to be to hold down shift key while shutting down computer (via windows button). . When computer restarts it then does a "full" start up and seems to connect to network correctly again. Hope that helps. .

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  # 1686440 12-Dec-2016 11:14
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Is this where it connects but won't get a lease from DHCP without manually typing ipconfig /renew? Had this issue with my dads laptop and it was strange




Mr Snotty
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  # 1686472 12-Dec-2016 11:35
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Yabanize:

 

Is this where it connects but won't get a lease from DHCP without manually typing ipconfig /renew? Had this issue with my dads laptop and it was strange

 

 

Yep that's the one expect in my parents case ipconfig /renew didn't fix it nor did a reboot (and yes - we did a full reboot, not the half-arsed Windows 10 one).





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  # 1686475 12-Dec-2016 11:45
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michaelmurfy:

Yep that's the one expect in my parents case ipconfig /renew didn't fix it nor did a reboot (and yes - we did a full reboot, not the half-arsed Windows 10 one).


What do you mean by this? From what I read this morning after lurking this thread win10 restart is a full shutdown & startup vs fast boot via regular shutdown.

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