High latency (lag) or connection errors (such as error 135) are usually caused by network conditions outside the game, including internet quality, Wi‑Fi stability, mobile data strength, or distance from our game servers.

We continuously monitor performance and player connectivity and make adjustments when needed to ensure a fair and smooth experience.

To get the best possible experience, we recommend:

• Using a stable Wi‑Fi connection or a strong 4G/5G signal
• Avoiding public or crowded networks while playing
• Playing without a VPN connection
• Closing other apps or downloads that may use bandwidth
• Playing closer to your router when on Wi‑Fi
• Restarting the game and your network if issues persist

If you’re still experiencing recurring connectivity issues, we kindly ask you to contribute to this issue through our official Bug Reporter page using the link below:

https://www.ubisoft.com/en-us/game/rainbow-six/mobile/bug-reporter/issues/R6M-2874 

This will allow the appropriate team to gather the necessary information to investigate your case further.