FAQs & Troubleshooting

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DS-940DW

FAQs & Troubleshooting

FAQs & Troubleshooting

Date: 07/02/2020 ID: faq00100466_502

Your Brother Machine Cannot Scan over the Network

Cause Action
You did not select Accept in the security alert dialog box during the Brother Device installation applications’ start-up process, or when using the scanning features.

If you did not select Accept in the security alert dialog box, the firewall function of your security software may be denying access. Some security software may block access without showing a security alert dialog box.

To allow access, see your security software instructions or ask the manufacturer.

Your security software blocks your machine's access to the network. (The Network scanning feature does not work.)
  • Windows

    Configure the third-party Security/Firewall Software to allow Network scanning. To add port 54925 for Network scanning, type the information below:

    • in Name:

      Type any description, for example Brother NetScan.

    • in Port number:

      Type 54925.

    • in Protocol:

      UDP is selected.

    See the instruction manual that came with your third-party Security/Firewall Software or contact the software manufacturer.

  • Mac

    Reinstall the driver.

Your security software blocks your machine's access to the network.

The following port numbers are used for Brother network features:

  • Network scanning, Remote Setup

    Port number 5566/Protocol TCP

  • Network scanning (Brother iPrint&Scan)

    Port number 54921/Protocol TCP

  • BRAdmin Light

    Port number 161/Protocol UDP

For information about how to open the port, see the security software instructions or ask the manufacturer.

Your Brother machine was not assigned an available IP address.

Confirm the IP address and the Subnet Mask.

Verify that both the IP addresses and Subnet Masks of your computer and the Brother machine are correct and located on the same network.

For more information about how to verify the IP address and the Subnet Mask, ask your network administrator.

See Related Information: Check the IP Address of Network Devices.

You cannot connect the Brother machine to the network using wireless capabilities.

If the Error LED on the Control Panel blinks in orange, it indicates an error status. Make a note of the error status and then correct the error.

If you have checked and tried all of the actions, but your Brother machine still cannot scan, uninstall the Brother software and drivers and reinstall them.

Related FAQs

Related Models

DS-940DW

If you need further assistance, please contact Brother customer service:

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