The most common factors behind VPN connection issues usually fall into two categories: software-level conflicts and network-level conflicts.
Software Conflicts
Software-level conflicts happen when another app or device system settings interfere with the VPN. For example:
- Security tools: Endpoint security tools, like antivirus software or firewalls, periodically inspect your device and network traffic to detect potential threats. PIA VPN encrypts traffic and modifies your network connection, which can conflict with your security settings. To fix this, add a VPN exception to your antivirus.
- Other VPNs or proxy settings: If you use another VPN on your router, or a proxy-based browser extension, your connection requests may pass through that tool before they reach the VPN. This can create competing network rules. Disable other VPN or proxy tools, then reconnect.
- DNS-based filters or ad blockers: A DNS-level filter or ad blocker controls how your device resolves website addresses. It can stop requests to blocklisted domains. PIA also blocks domains at the DNS level, so running both can cause DNS resolution issues. Change DNS settings in the PIA app, or disable one DNS filter and reconnect.
- Administrator permissions: VPN desktop apps need admin privileges to install and apply system-level network configuration. If your device can’t approve these requests, PIA won’t connect correctly. Grant the VPN admin privileges or log into an administrator account and reinstall the app.
- Outdated VPN configurations: Your PIA app may be using old server, protocol, or routing details. This will prevent the VPN from connecting or passing traffic correctly. Update the PIA app to get the latest supported settings.
Network Conflicts
Network-level issues can block or disrupt the VPN tunnel, commonly including:
- Network, ports, or protocols restrictions: Some networks restrict VPN connections by blocking specific ports or protocols used by VPN apps. Change your VPN ports by switching between UDP and TCP and selecting a different remote port. If these settings don’t work, try connecting to a different network.
- IPv4/IPv6 compatibility: IPv4 and IPv6 are Internet Protocol versions that label packets with source and destination IP addresses, so devices know where to send data. PIA uses IPv4 and blocks IPv6 traffic to help prevent leaks. On IPv6-only networks, PIA will fail to connect. Try another network, or enable IPv4 on your router or device if available.
- Packet fragmentation: The Maximum Transmission Unit (MTU) is the largest packet size a network connection can send. VPN encryption adds data to each packet, so some packets can become too large and split or drop in transit. Enable Small Packets in the PIA app, then reconnect.
Note: Some VPN connection issues may result from external factors. Local restrictions may block or limit VPN connections in some areas, and PIA can’t guarantee connectivity. Learn more about PIA service availability.