How To Repair: Unexpected network error 0X8007003B



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Error 0X8007003B is a network problem that some Windows 10 and 8 users have encountered when transferring large files from a network drive to the desktop or laptop. The error message window 0x8007003b indicates that “0X8007003B: an unexpected network error has occurred”. As a result, Windows 8 or 10 users cannot transfer all files to their VPN.

How to fix error 0x8007003b

Network error 0X8007003B occurs when you transfer a large file larger than 100 MB via a VPN connection.

Although the Windows 0X8007003B error is network related, it can be caused by several factors, including factors directly related to your computer. Some of the most important and notable reasons are, but are not limited to;

  • Unstable network connection that can also lead to bandwidth restrictions.
  • A program/software that you have recently installed that may have corrupted system files or misconfigured system settings.
  • Interference caused by the integrated firewall and installed antivirus program.
  • Virus/malware infection.
  • Installation/transfer of files Formatting the target which may have limitations.
  • Wrong sectors in the destination folder, which in most cases is the hard disk.

How to fix Unexpected network error 0X8007003B in Windows:


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There is no defined method to correct the 0x8007003b error because there may be a different combination of causes that cause this error. So try all the methods listed below and there is no guarantee that if something works for others, it can work for you because it depends on PC to PC. Therefore, you may need to try several methods before you can finally “Fix An unexpected network error occurred 0x8007003B.

Check the formatting of your hard disk

Check the formatting of your hard disk

Windows and its memory have several different formatting methods, such as FAT32 or NTFS. The two methods have different limitations, and some of them can cause this problem. What you need to check is the formatting of the target drive to which you are copying the file. If it is FAT32, be aware that it only supports files smaller than 4GB, and crashes automatically near the end of the copy. This only happens with a single file larger than 4 GB. So if there are many smaller ones, it should be fine.

Although this may seem like a much more complicated problem than it really is, just follow the methods above, and you should be absolutely fine.

Disable antivirus programs

disable-antivirus-windows-10

Antivirus programs can also be the cause of network error 0x8007003B. All you have to do is disable or disable antivirus programs for a limited time and check whether the error still occurs or not.

Step 1: In the taskbar, right-click the antivirus program and click Disable automatic protection.
Step 2: Select the length of time you want to disable your antivirus program.
Step 3: Now repeat the file copy process and check if the network error 0X8007003B is fixed or not.

Disable the firewall

Turn-Windows-Firewall-on-or-off

The main cause of the above error can sometimes be the Windows firewall, which can interfere with file transfer. Let’s see how to disable the firewall:

1. Press the Windows + I button and select Control Panel.
2. then click on System and Security.
3. then click on Windows Firewall.
4. Now click on Enable or disable the Windows firewall on the left side of the window.
5. Select Disable Windows Firewall and restart your PC.

https://community.wd.com/t/0x8007003b-windows-10-wdmycloud/214508


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