Solved windows network access failure

May 23, 2019 at 04:56:29
Specs: Windows 7, 8GB
I have several machines that use the same WiFi to connect to the internet, and suddenly 1 of these machines does not want to connect to the network.

This is a 64 bit Windows 7 laptop. All other devices still have internet access (and are also Windows 7 64-bit machines).

I check if that laptop had a switch for WiFi enabled, but this machine doesn't have that. It also does not have a WiFi button on the keyboard.

So, I connect this laptop to the router with a cable, and still there is no internet access. The machine doesn't get an IP, and it cannot connect to my network either ... which is the basic problem.

So, I'm thinking the network hardware on this machine failed. I didn't see ANY message in Windows.

Recently, Windows had some updates, but I'm not sure the timing relates to the moment I had the issue in this post.

I would like to just get to know if this is a hardware or a software problem. And, if possible more in detail ..


See More: windows network access failure

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✔ Best Answer
May 28, 2019 at 14:16:08
I fiddled with the drivers and the software, I removed all drivers ... got it working again.

All network drivers were invalid, but also some entries for "other devices" were listed as invalid. It seemed me that these prevented the re-installation of network drivers. Once these entries in "other devices" were removed, all seemed to work correctly.

After that, I did need to troubleshoot the actual Network Connection from the Control Panel entries, because they showed up as bad in there as well. After that, all wireless networks were visible from the network icon in the tray bar.



#1
May 23, 2019 at 05:40:14
Control panel > Network & Sharing Center > Troubleshoot.
https://s17.directupload.net/images...

message edited by Johnw


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#2
May 23, 2019 at 11:37:50
> Control panel > Network & Sharing Center > Troubleshoot.
> https://s17.directupload.net/images...
>

If I choose "Network Adapter", it states: Troubleshooting couldn't identify the problem

When I choose "Internet Connections", it states: Troubleshooting couldn't identify the problem


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#3
May 23, 2019 at 16:57:01
Can you connect in Safe mode with Networking?

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Related Solutions

#4
May 23, 2019 at 18:02:37
Any proxy set intentionally or unintentionally?
malware scanned?
Change in gateway or DNS server?
Can you ping 8.8.8.8?

message edited by sluc


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#5
May 27, 2019 at 01:35:47

> Any proxy set intentionally or unintentionally?

I don't think so, I think this machine has never been used for such setup

> malware scanned?

Malwarebytes AdwCleaner 7.2.6

OK apart from:
PUP.Optional.Legacy
PUP.Optional.SimCleanerPlus

But, after removal, same issue ...

AVG AV free : detailed scan

> Change in gateway or DNS server?

I'm not too familiar with any of these, but I
know I haven't changed anything on my router, or
on the network settings of this machine.
There's no DNS involved, wouldn't know how to do that

Note that OTHER machines on the same router
still work as usual.
The trouble laptop doesn't display any network,
neither mine, neither the ones that are within
reach but to which I have no logical access to.

> Can you ping 8.8.8.8?

C:\>
$ ping 8.8.8.8

Pinging 8.8.8.8 with 32 bytes of data:
PING: transmit failed. General failure.
PING: transmit failed. General failure.
PING: transmit failed. General failure.
PING: transmit failed. General failure.

Ping statistics for 8.8.8.8:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

C:\>
$


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#6
May 27, 2019 at 01:42:48
I found the following issues reported by Windows:

In : Control Panel \ Devices and Printers, my laptop has a yellow warning symbol next to it.
If you follow the troubleshoot wizard, it is saying it needs to reinstall:
the driver for Teredo Tunnelling Pseudo-Interface

Now, it seems there are quite some other drivers incorrect, and the one listed above is just the first of a series. If I go into Control Panel \vDevice Manager \ Network adapters,
it seems that ALL drivers have a yellow warning symbol next to it ...

I also have drivers for virtual machines software, but just the general WiFi drivers are also reported as being incorrect. For example, these were incorrect:

Realtek Ethernet Controller Driver 7.72
Realtek Wireless LAN driver 1.0.0.34

I followed the option to re-install, but some are left in the same state, and the issue remains being the same. I also tried to re-install the drivers using the normal installation software (or, what I think I used 5 years ago), but that only worked after I removed/re-installed most of the drivers for these devices.

So, the current state is:
- drivers still being reported as bad
- no network access at all

Re-installing Windows 7 is not an option as this machine is going to be upgraded to Windows 10, but not yet.


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#7
May 27, 2019 at 02:17:22
Disabling the VM drivers and Toredo on wired and wireless network adapters does not help?
Can you post the "ipconfig" command output?

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#8
May 28, 2019 at 14:16:08
✔ Best Answer
I fiddled with the drivers and the software, I removed all drivers ... got it working again.

All network drivers were invalid, but also some entries for "other devices" were listed as invalid. It seemed me that these prevented the re-installation of network drivers. Once these entries in "other devices" were removed, all seemed to work correctly.

After that, I did need to troubleshoot the actual Network Connection from the Control Panel entries, because they showed up as bad in there as well. After that, all wireless networks were visible from the network icon in the tray bar.


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