TCP

Last updated on 6 October 2025

Remote uses VPN connections via TCP (Transmission Control Protocol). The connection via TCP ensures that data packets are always delivered in the correct order and checked for completeness. This keeps your VPN connection stable and reliable, even in poor network conditions.

Why Choose TCP

TCP is a connection-oriented protocol that governs retransmission and error checking. Use TCP when reliability is more important than speed — for example, for remote management, configurations, or file exchange where no data may be lost. For applications that require error-free data transfer, TCP is the best choice.

When Does it Apply to your VPN Connection

In situations with packet loss, high latency, or unreliable mobile networks, a connection via TCP often causes fewer problems than UDP-based options. Note: TCP may appear slower because it has additional control mechanisms.

Setting up a Client for Connection via TCP

If you want a client to connect via TCP, go to Manage Clients in the Portal and follow these steps:

  1. Open Manage Clients and choose the relevant client.
  2. Click Edit.
  3. Select the option Connect via TCP.
  4. Save the change to activate the setting immediately.

Practical Tips

After switching, check whether the VPN connection functions as expected: monitor connection times and any retransmissions. Keep in mind that some network environments have firewalls or proxies that treat TCP connections differently.