Network Requirements

This page lists the network access Remotle needs. It is for IT teams setting firewall, proxy and web-filter rules. For how a connection is made, see How Remotle Connects.

No inbound ports

Remotle never needs an inbound port, on your devices or on your workstations. Every connection is made outbound. Workstations do not listen on any port.

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Ports

Protocol	Port	Direction	From	Purpose
TCP	443	Outbound	Devices and workstations	Sign-in, workstation list, portal, connection set-up, updates, certificates, licence, logs
TCP	9443	Outbound	Devices and workstations	Connection set-up, on the connection service’s second port
UDP	4443	Outbound	Devices and workstations	Session traffic through a Computle relay
UDP	3478	Outbound	Devices and workstations	Network address discovery (STUN)
UDP	Any high port	Outbound	Devices and workstations	Direct session traffic between the device and the workstation, when the network allows it

UDP is required

The session is carried over UDP, through a relay or directly. A network that allows only TCP, or only traffic through a web proxy, can sign in and list workstations but cannot start a session.

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Check a network

Once the rules are in place, open Computle (Remotle) on a device on that network, open Settings, Diagnostics and click Run Test. Every line should answer with a time in milliseconds. See Testing your network.

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In this section

Domains for user devicesSign-in, workstation list, portal, updates, logs and Microsoft sign-in.

Connection servicesConnection set-up, relay and STUN host names and addresses, needed by devices and workstations.

Proxies and TLS inspectionWhich traffic uses the system proxy, which can be inspected, and which must be excluded.

BandwidthPeak bitrate per screen at each resolution.

Testing your networkDiagnostics in the Remotle app.

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Questions

Do I need to open any ports?

No. Nothing inbound is needed on your firewall, your router, your devices or your workstations.