Buy a “mini PC” with a faster CPU or cryptographic accelerator chip
OpenVPN throughput statistics are COMPLETELY USELESS if you do not specify the cipher and key size used in the test. For example, AES-256 uses 40% more CPU resources than AES-128. Would someone please test the GL-B1300 with a modern cipher suite and high security configuration typically used in business communications, such as:
ECDHE-RSA-AES256-GCM-SHA384, 2048-bit RSA
I have tested the GL-AR300M at 9 Mbps download with this configuration using speedtest.net. Meaningful OpenVPN throughput statistics using a standard benchmark like this should be posted on the specifications page of all products here.
But not secure enough. And what about these:
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This forum is for adults.
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Cryptographic experts have found serious security flaws in all major components of IPsec. This is why many commercial VPN internet browsing services do not support it. IPsec may be fine if you are just downloading copyrighted material, but please do not bark and salivate like a dog at the mention of a compromised encryption standard like this. IPsec is not recommended for important communications.