TRIOS Wireless not connecting with TP-Link

09 November 2023 | Updated 15.6.2026

Wireless TRIOS Scanner Connection Issues: Troubleshooting Guide

TRIOS Wireless scanner may not be connecting to a system (PC/Cart/MOVE) for several reasons. Therefore, it is important to understand the root cause of the issue during troubleshooting of such cases.

Step 1: Make sure that the TP-Link is connected directly to a port in your PC/Cart/MOVE, not to a USB hub.

Step 2: Check if the scanner serial number is correct by checking the in settings under More > Settings > TRIOS > Scanner Management.
Confirm that the scanner is selected and the serial number is correct. If not, select the option “Add new scanner” and type the correct serial number.

Note: It is recommended to forget the scanner if its serial number is not correct to prevent connection issues in the future. For this select the 3 dots option (Top-right corner on the wrong scanner) and select the option “Forget Scanner”.

 

Step 3: Verify the color of LED indicator on the scanner

  • If it is TRIOS 5, refer to this article.
  • If it is another wireless model, check whether the LED indicator on the back of the scanner is blue, green, or off.
  • If the indicator is off, this is a hardware issue. Try changing the battery and if it is still off, contact 3Shape Support.
  • Blue indicator means that the scanner is attempting to connect.
  • Green indicator means that the scanner is properly connected.

Step 4: Check if 3Shape Wireless Service is running

  • Open Windows services (Win + R -> services.msc -> Enter).
  • Find 3Shape Wireless Service and start it. Make sure that Startup Type is set to Automatic. 
  • If the service is failing to start, reboot the system and try again.

Step 5: Use the recommended Wi-Fi channel

The recommended wireless channel for Windows PC is 40. Active channel can be checked in the software settings on the Scanner Management page. If a non-recommended channel is selected, try to set the recommended one and restart TRIOS software.

However, in some environments with a large amount of Wi-Fi networks other channels should be tried if the scanner is not connecting.

Step 6: Try a cross-check 

  • Try changing the USB port for the TP-Link.
  • Try to connect the scanner to another PC if you have one.

Contact 3Shape Support if you have any further questions.

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