Our solution is not designed or optimized to run alongside another VPN on the same operating system. Running two VPNs simultaneously can lead to a range of issues, including:

• Network Conflicts: Multiple VPNs may compete to control the network interface, resulting in unstable or broken connectivity.
• Routing Issues: Each VPN establishes its own encrypted tunnel and routing rules. When both are active, they can override or conflict with each other’s routes, causing traffic to be misrouted or blocked entirely.
• Performance Degradation: VPNs consume system resources and bandwidth. Running two at once can significantly impact device performance and network speed.
• Security Risks: Instead of enhancing protection, overlapping VPNs can create unintended vulnerabilities, as one VPN may bypass or interfere with the encryption or DNS settings of the other.
• MAC Address Conflicts: For example, FortiClient VPN may assign a virtual adapter with the same MAC address across different devices. When used in conjunction with Timus SASE, this causes identification conflicts in our platform, preventing proper policy enforcement and ultimately blocking access.
• Timus SASE and ControlOne Conflicts: ControlOne and Timus SASE both implement low-level network drivers to manage secure access and routing. When both agents are active, they interfere with each other’s tunnel interfaces and route tables. This leads to unpredictable behavior such as traffic loops, broken connections, or one service completely overriding the other. As a result, users may experience loss of access, inconsistent security enforcement, or total VPN failure.

To ensure optimal performance, stability, and security, we recommend using only one VPN or secure access solution at a time on any given device.

Updated July 10, 2025 18:46