Is there now some issue with TeamViewer servers?

Question

Remote connect with version 15.74.6 has been very slow about 2 days. Both remote computers are running fast but connection from teamviewer server to remote computer is using HTTP and it's almost stopped? I included information picture of connection

Chisa_R · Answer

Hi @CeeTheC,

Welcome to the TeamViewer Community. 😊

First and foremost, please update your TeamViewer to the latest version. This article explains how to do that.

According to our status page, no connection issues have been reported. For the latest updates, we recommend subscribing to this page:

TeamViewer Status

When a TeamViewer session shows HTTP on the “TeamViewer server → your device” leg, it might indicate that the preferred ports are blocked or restricted on your local network. In that case, TeamViewer falls back to HTTP (port 80), which is slower and can cause the kind of lag you’re seeing.

A few things you can check:

* Make sure your network allows outbound traffic on TCP/UDP 5938 (and optionally TCP 443) , which is TeamViewer’s primary and fastest port.
* Check whether a firewall, antivirus, VPN, or proxy was recently updated or changed on either side. These can force the connection into HTTP mode.
* Restarting the router or switching temporarily to a different network can help confirm whether the issue is network‑related.

For more details, please refer to this article:

Ports and URLs used by TeamViewer

If the issue persists, please let us know. I’m happy to look into it further!

Best, Chisa