Microsoft Intune stops syncing because of closed Firewall ports. This also occurs if the device is registered to multiple organizations or has disabled Enterprise Mobility + Security.

How to Fix Microsoft Intune not Syncing? - 1

Microsoft Intune

What Causes Microsoft Intune Not Syncing?

  • Closed Firewall Port 444 of the System : Microsoft Intune uses Firewall port 444 to communicate with its servers. If port 444 is closed then it can cause syncing issues.
  • Device Registered to Multiple Organizations : If your device is registered to more than one organization, then it can force Microsoft Intune not to sync to a single account.
  • Disabled Enterprise Mobility + Security : If Enterprise Mobility + Security is disabled then it can cause Microsoft Intune into the current issue.

Before trying the solution make sure that you have admin access to the system. Also, you will need admin access to the office 365 portal .

1. Open Firewall Port 444

Microsoft Intune uses specific Firewall port 444 to communicate with its servers and the internet, this port should be opened for the application. In some cases, the port is opened automatically by the application and it has instant access to the internet. However, in some cases, the port needs to be opened manually otherwise the application is blocked from using the internet until the port is opened. We will use Windows Defender Firewall to demonstrate the process of opening port 444, you may user instruction specific to your system’s firewall.

  1. Press Windows key and type ‘ Windows Defender Firewall’ and in the resulting list, click on Windows Defender Firewall with Advanced Security . Windows Defender Firewall with Advanced Security.
  2. In the left pane of the window, Right-click Inbound Rules and then select New Rule . Create New Rule in Firewall
  3. Select Port and click Next . Select Port in New Rule in Firewall
  4. Select the TCP or UDP protocol option for your port.
  5. Then enter the port number 444 in the Specific local ports. Enter port number 444 in the Specific local ports box
  6. Select the Allow the connection.
  7. Click the Next button to open Profile options.
  8. Click Next again, and then enter a title for the firewall rule.
  9. Press the Finish

2. Unregister the Device from Other Organizations

If a user device is registered with multiple organizations then Intune shows the error of sync could not be initiated. In that case, unregistering the device from all organizations except one may solve the problem.

  1. Press the Windows button and type “ settings ” and in the resulting list click on “ settings ”. Open Settings in Windows Search
  2. Select Accounts in Settings. Open Accounts in Windows Settings
  3. Click Access work or school on the left of the Settings window. Access Work or School Account
  4. If the device is connected with another organization, select the listed account for it.
  5. Then click the Disconnect button for the selected account. Then the user will have one organization account for Intune listed there.
  6. Restart the system and check if Microsoft sync has started to work.

3. Enable Enterprise Mobility + Security in Office 365 Portal

If Enterprise Mobility + Security in Office 365 admin portals is disabled then Microsoft Intune stops syncing. Even though this isn’t a requirement of the feature, it seems that there is a bug that prevents the syncing process from starting. Enabling Enterprise Mobility + Security may solve the problem.

  1. Open office 365 admin portal. Office 365 Admin Center
  2. Select the user account that is facing the syncing error.
  3. Click the Edit button for Product licenses.
  4. Then turn on Enterprise Mobility + Security E if it’s not enabled.
  5. Restart the affected device to resync it. Open the Settings app in Windows 10.
  6. Then click Access work or school and resync the device from there.

How to Fix “Printer is in an error state” Issue?

The error “ WinRAR Error: Next Volume Is Required ” usually appears when you’re extracting a multi-part RAR archive and WinRAR can’t find (or can’t correctly identify) the next file in the sequence . This often happens when a volume is missing , stored in a different folder , or renamed in a way that breaks the archive’s expected order .

How to Fix Microsoft Intune not Syncing? - 2

In this guide, we’ll go over the most reliable fixes confirmed by affected users, along with what each method is doing behind the scenes so you can choose the right one for your situation.

Important: To extract multi-volume archives, you should always start extraction from the first file in the set. This is usually file.part1.rar , or (in older sets) the main .rar file that comes before .r01 , .r02 , and so on.

1. Download and Place the Missing RAR File

WinRAR needs all parts of a multi-volume archive to complete extraction. This error usually appears when one of the volumes in a set like .part2.rar , .r01 , .r02 , .001 , and similar naming formats is missing . Downloading the missing volume and placing it in the same folder as the other parts allows WinRAR to continue extracting normally .

  1. Look at the error message or review the list of archive parts in the folder.
  2. Identify which volume is missing (for example, part2.rar , .r02 , .001 , etc.).
  3. Go back to the website or source where you downloaded the archive.
  4. Locate and download the exact missing file using the same naming format as the others.
  5. Make sure the new file name matches the pattern of the rest. Example: If you have file.part1.rar and file.part3.rar , the missing one must be file.part2.rar .
  6. Move the downloaded missing volume into the same folder as the other archive parts.
  7. Confirm that all parts are in a single folder before extracting.
  8. Right-click the first file in the series (usually part1 or the main .rar file) and select Extract Here or Extract to Folder .
  9. WinRAR should now detect all volumes and continue extraction normally .

2. Manually Browse & Select the Next Volume

Use this method only if the next volume already exists , but WinRAR is failing to detect it automatically. This can happen due to incorrect naming , the file being in a different location , or a temporary file access issue. Manually browsing helps WinRAR locate the correct volume and resume extraction without interruption .

  1. Right-click the first file in the series (usually .rar or part1.rar ) and select Extract Here or Extract to Folder .
  2. When WinRAR cannot find the next volume, it will show the “ Next Volume Is Required ” message.
  3. A small window will appear, allowing you to manually select the next volume .
  4. Use the file explorer window to locate the folder where the other archive parts are saved.
  5. Select the next part based on the naming order (example: select file.part2.rar after file.part1.rar ).
  6. Make sure the selected file matches the naming format of the archive (no extra characters like (1) and no mismatched numbering).
  7. WinRAR will resume extraction using the selected volume .
  8. If additional volumes are missing or stored separately, WinRAR may prompt you again. Repeat the same process until extraction completes.

3. Rename the RAR files in Order

WinRAR relies on a proper naming sequence (such as file.part1.rar , file.part2.rar , file.part3.rar ) to extract multi-volume archives. If a file is named incorrectly, contains extra characters, or is out of order, WinRAR may fail to locate the next volume and show this error. Renaming the files correctly helps WinRAR follow the sequence and extract the archive without interruptions .

Note: Renaming only changes the file name , not the file contents. The goal is to restore the correct sequence so WinRAR can detect the next volume.

  1. Go to the folder where all the RAR files are saved.
  2. Make sure all parts of the archive are present and stored in the same folder .
  3. Check how the parts are currently named . Common patterns include:
file.part1.rar, file.part2.rar, file.part3.rar
file.rar, file.r01, file.r02, file.r03
  1. Look for files that don’t match the expected numbering pattern (for example, file.part01.rar , file.part1(1).rar , or unrelated names).
  2. Rename each file so it follows the same order without extra characters or mismatched numbering. Example:
Incorrect: file.part1.rar, file.part3.rar, file.part2(1).rar
Correct: file.part1.rar, file.part2.rar, file.part3.rar
  1. Make sure the text before the number is exactly the same for all files.
  2. Only the last part number should change.
  3. Right-click the first file in the series (usually part1.rar or the main .rar file) and select Extract Here .
  4. WinRAR should now recognize the sequence and continue extraction normally .

If you still get the same prompt: the archive set is likely incomplete (a part was never downloaded or was removed), or one of the volumes is corrupt and must be re-downloaded from the original source.