NAS private network disconnected and can't be reconnected after update to WIN 10 20H2 or 20H1

Question

The following is getting real urgent now since the update to 20H2 is forcing itself on to my notebook!

I have 3 NAS running in my private network:

1) D-Link ShareCenter DNS325, latest Firmware 1.05, no more update available

2) Iomega (now Lenovo) StorCenter ix2-200, latest Firmware 2.1.50.30227, no more update available,

3) QNAP TS-251+, Firmware 4.5.1

I have updated 3 different PC’s to Windows 10 version 2004 and just a few days ago to Windows 10 version 2009. After the update the -under Win 10 version 1909- mapped network drives of the DNS325 and StorCenter ix2-200 (which are much older than the QNAP TS-251+) won’t reconnect with either error “network path not found” or “the local device name is already in use”.

Essentially windows 10 version 2004 and 2009 do not recognize the 2 devices as NAS and they do not appear under “network” anymore. Under Win 10 version 1909 as well as all previous versions of windows everything ran fine.

I can however, access both NAS by using a browser and type in their internal network address (192.168.1.xxx).

I have applied the registry modification found under answers.microsoft.com Here is the instruction:

<<Computer\HKEY_CURRENT_USER\Network\Z or your drive letter, I deleted Z.

Computer\HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Map Network Drive MRU and delete the entry, (a, b, etc), for your drive.
Then add the following after remapping your drive or else it will fail to connect after a reboot or shutdown.

[HKEY_CURRENT_USER\Network\Z]

"ProviderFlags"=dword:00000001>>

Smbv1 is also enabled under “turn on / off windows features”.

It can't be right that Microsoft tries to force me to retire older NAS in my private network just because they are old.

I need a solution or an instruction for a workaround please!

Answer 1

Hi Candy,
many thanks for all your efforts!

I have meanwhile resolved the matter by doing a clean install of WIN 10 Version 20H2. After all, the notebook was bought with WIN 7 and went through all the updates to WIN 10.

After the fresh install, mapping the drives as well as "add network location" was no problem at all. However I went through steps 2 to 7 described here (https://techcult.com/wiki/fix-error-code-0x80070035-the-network-path-was-not-found/) BEFORE adding any network location or mapping a drive. In addition I added the following for the old NAS mapped drives:

[HKEY_CURRENT_USER\Network\"drive letter"]

"ProviderFlags"=dword:00000001>>

Ever since, everything runs smooth.
Best,
Uwe

Answer 2

Hi ,

If you re-mapped network drive, will the problem still occurs? What's the exact error message?

Did you mean that you can map network drive but it will disconnect when you restart the machine? Could you please clarify more details?

If you add a network location, will it work fine?

Best Regards,

Candy

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Answer 3

Hi Candy,
thanks for your reply and questions.

Here my answers:

1. If you re-mapped network drive, will the problem still occurs?
Yes, the problem doesnt go away. Remapping works and even after a reboot, sometimes the drives are re-connected. However, after a "shutdown" the connection fails again.

2. What's the exact error message?
The error message is "Error code 0x80070035 The network path was not found" or "the local device name is already in use - the connection has not been restored".

3. Did you mean that you can map network drive but it will disconnect when you restart the machine? Could you please clarify more details?
Yes this is correct. All the above applies to a wired network connection. With wireless network connection (which works under 1909 fine), Windows won't even find any of the 192.168.x.x addresses or by device name under WIN 20H1 or 20H2.

4. If you add a network location, will it work fine?
I haven't tried that yet. What is the difference to re-mapping or using "map network drive"?

Many thanks!

Answer 4

Thank you again for your suggestion.

After almost 6 hours of work there is no fix or solution. I have updated to WIN 10 20H2 and all network drives were disconncted. I deleted them all from the registry. Then I carried out ALL of the steps described here:

https://techcult.com/wiki/fix-error-code-0x80070035-the-network-path-was-not-found/

All attempts after each potential solution ended up as follows:

-add network place: "The folder you entered does not appear to be valid - please choose another one"

-map network drive:
a) sign in with different credentials UNTICKED: Windows cannot access xxxxx ..... Error code 0x80070035 The network path was not found
b) sign in with different credentials TICKED: Sign-in window pops up, I key in my account / login, tick remember my credentials, and then the window pops up again and no drive was mapped.

After these long hours I reverted back to the previous built (1909) and everything was fine again.

Conclusion:
With the running system on this notebook (bought years ago with WIN 7 but with an updated SSD as well as an I7 CPU plus 8GB ram) I believe there is no hope to get a solution.

Remaining question: Would a clean WIN 10 (reset system) offer hope or should I look for a suitable linux distribution?

Suggestions are welcome, many thanks!

Answer 5

Hi @Uwe_HKG ,

Thank you for the efforts you've done so far and your continuing patience. I truly understand how inconvenient you feel about the issue.

I noticed that you are using older NAS. I am not sure if there is a compatibility issue between the old NAS and 20H2 system. And due to the limited resource, we don't have such device to test in our lab.

If this issue is urgent, our suggestion is you submit a service request to MS Professional tech support service so that you would get a more satisfying explanation and solution to this issue.

You may find phone number for your region accordingly from the link below:

https://support.microsoft.com/en-us/gp/customer-service-phone-numbers

Best Regards,

Candy

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