Learn about TRIOS Share in this article (What is TRIOS Share?).

Learn more about TRIOS Share availability and requirements in this article (TRIOS Share availability and requirements).

TRIOS Share Network requirements guide can be found here.

Find below a detailed description of all the network parameters and their influence on TRIOS Share performance.

Wireless networking standard and frequency

802.11ac Wi-Fi is a wireless networking standard that Share uses. It is also known as Wi-Fi 5.

It's limited to work with 5GHz frequency band only. 

2.4 GHz frequency is not officially supported.

If the customer has a router that supports 2.4 and 5 GHz frequencies at once with the same network name, it's recommended to:

• Either disable 2.4 GHz frequency on a router;
• Or give 2.4 GHz frequency network another name.

If the network has multiple access points, then it's important to ensure that they use different frequencies/channels.

Channel bandwidth

Each frequency band is divided into channels. An access point can be configured to use a specific channel that will be used to communicate with connected devices. 

A wider channel means that more data can be sent at the same time.

The higher bandwidth is mostly needed when having multiple scanners on the network and the other way around.

Bi-directional traffic

Bi-directional traffic shall be permitted since data is sent from the scan PC to the scanner and from the scanner to the scan PC.

TRIOS Share will not work if it is not permitted.

Communication ports

The following TCP ports are used on the scanner: 20-21, 80, 23795 and 23796

The following UDP ports are used on the scanner: 58218 and 58220-58230

The following UDP ports are used on the PC or router: 67 (DHCP), 5353 (mDNS)

All the above ports should be open, otherwise, the scanner will not connect.

mDNS

mDNS is the protocol specifying how to discover the scanner on the network.

Should be enabled, otherwise, the scanner will not connect.

Redirection of traffic done for example by Captive Portals must be disabled

A captive portal is a web page accessed with a web browser that is displayed to newly connected users of a Wi-Fi or wired network before they are granted broader access to network resources.

Some portals redirect the traffic and in that case Share will not work.

WPA2-PSK authentication for TRIOS scanners

There are three security programs developed by Wi-Fi Alliance:

• WPA
• WPA2
• WPA3

There are also the following two types of security programs:

1. WPA-Personal: Password configured on AP (3Shape Guest)
2. WPA-Enterprise: has client authentication using authentication server:

Currently only WPA2-personal is supported by TRIOS scanners.

Windows firewall

Windows firewall rules are added to the PC's firewall as part of the installation process of Dental Desktop so usually, no further configuration is required.

Direct line of sight

Each scanner should have a direct line of sight to an access point to ensure good Wi-Fi coverage in the scanning location.

In case of any additional questions, contact 3Shape Support.

TRIOS 6 Scanner Requirements

This document outlines the essential software, network, and configuration requirements for the optimal performance of TRIOS 6 scanners. Meeting these requirements ensures high scanning reliability and speed.

1. Software Specifications

• Minimum Required Version: TRIOS SW 1.18.5.23
• Recommended Version: TRIOS SW 1.18.5.45 or higher

2. Network Specifications

Wi-Fi Standards and Frequency

• Must support 802.11ac Wi-Fi standard
• Only 5 GHz band is supported (2.4 GHz is not compatible)
• Channel Width: Set to at least VHT40 (40 MHz)

Access Point (AP) Configuration

• Multiple access points must use different frequencies/channels
• Each TRIOS 6 scanner should have a direct line of sight to an access point

Bandwidth Requirements

Standard Scanning:

• Minimum 112 Mbps capacity per scanner (56 Mbps actual data)

HD Scanning:

• Minimum 240 Mbps capacity per scanner (120 Mbps actual data)

Wi-Fi Signal Strength: Recommended above -60 dBm

3. Communication and Port Requirements

Required Traffic Permissions

• Bi-directional traffic must be allowed between TRIOS scanner and Dental Desktop client PC

TCP/UDP Ports

Scanners (TRIOS 5 & 6):

• TCP: 23796
• UDP: 58218, 58220–58230

PC or Router:

• UDP: 67 (DHCP), 5353 (mDNS)

⚠️ Traffic redirection mechanisms (e.g., Captive Portals) must be disabled.

Firewall Settings

• Windows firewall rules are automatically configured during Dental Desktop installation
• No manual firewall configuration is typically needed

4. Wireless Security and Authentication

WPA Authentication is required

Supported protocols:

• WPA2 Personal (WPA2-PSK)
• Pairwise and Group Encryption: CCMP and TKIP

SSID and Password Requirements

• SSID: 1–32 characters
• Password (PSK): 8–63 characters
• Only printable ASCII characters are supported
  See list
• Both SSID and PSK are case-sensitive
• Hidden SSIDs are not supported – they negatively affect scanning performance without benefit

5. Network Configuration Warnings

The following network settings should be disabled to ensure proper TRIOS scanner operation:

ℹ️ For enterprise setups (e.g., Ubiquiti), refer to the network software's documentation for exact steps to disable or adjust these settings.

6. Additional Recommendations

• mDNS must be enabled to allow scanner discovery
• Ensure WPA2-compatible configurations in routers and access points
• Use network monitoring tools to confirm bandwidth availability and signal strength

If all the above requirements are met, TRIOS 6 scanners will operate smoothly, delivering high-performance.