Before diving into the thick of connectivity troubleshooting, you should understand that your Internet Service Provider (ISP) and the way you share the connection speed plays a huge role in how you experience the game. If you are connected via wifi, please also bear in mind that you can maximise your gaming experience on the battlefield by connecting via an Ethernet cable instead.
Additionally, if you have NAT related issues or questions, this dedicated article might shed some light on the situation.
Here is the list of steps you can try:
1. Reset network hardware
This will allow your network hardware to re-establish a fresh connection to your ISP.
2. Software conflicts
Make sure that no software running on your PC is affecting your ability to connect.
3. Enable UPnP
Some players reported that this step helped them to fix their connectivity issue. UPnP stands for Universal Plug and Play and is a feature that allows applications to automatically forward ports. It can be toggled on or off in your router settings. Due to the number of different router models on the market we are not able to tell you exactly how to do this on your home router. We suggest that you consult the router's manual or contact your ISP if you are in doubt.
4. Port forwarding
This will allow the communication from the game server to be channelled directly to the PC and vice versa.
These are the ports you need for Rainbow Six: Siege:
5. Hosts file
Rule out that an outdated configuration blocks our connection.
6. Flush DNS
Obtain an up to date IP address of the webservice you want to connect to.
7. External restrictions
Check for other factors that may limit your ability to connect.
For more information about the in-game connectivity icons, check out this article.
If you continue to have trouble after trying these steps, please feel free to contact us!