Choosing WireGuard or OpenVPN for an SMB environment.
WireGuard wins on speed, battery and config simplicity. OpenVPN wins on legacy firewall compatibility, certificate revocation and if you already have an SSL-VPN culture. For greenfield with laptops and mobile, pick WireGuard unless something in your stack truly does not support it.
Try this first
- 1Inventory which clients you must support, older mobile MDMs cannot push WireGuard yet.
- 2Check if your firewall lets WireGuard UDP ports out on guest networks, otherwise OpenVPN TCP 443 is the safer fallback.
- 3WireGuard has no built-in user auth, you need something like wg-portal, Tailscale or Netbird in front.
- 4OpenVPN community is free but old, OpenVPN Access Server is paid per concurrent connection.
When to bring us in
You have strict certificate revocation requirements from an audit (DigiD provider, NEN 7510): do not self-build, pick a commercial ZTNA or OpenVPN AS with a real PKI role.
See also
- VPN will not connect or keeps droppingTwo main causes: your home internet or the VPN server. One quick test separates them.
- VPN connects but corporate folders are unreachableConnection says "green" but your network drives will not open. Almost always a DNS or routing issue.
- Home PC slow on VPN, fast at the officeThree suspects: home internet, VPN server limits, or routing that takes a long detour.
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