AdBlock VPN uses different connection protocols depending on your platform. If you're on a network with a firewall (such as a workplace or school network), make sure the ports below are open for the protocols your device uses.
Protocols by platform
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Windows: IKEv2, WireGuard, OpenVPN (TCP), OpenVPN (UDP)
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Android: WireGuard, OpenVPN (TCP), OpenVPN (UDP)
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Mac and iOS: IKEv2, WireGuard
Required ports
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OpenVPN (TCP/UDP): ports 443, 1194, 8443, 8080 and 3047
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IKEv2: port 500
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WireGuard: port 56820
Note: The WireGuard port may change in the future as we work to improve connection reliability.