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Solved
HMAC Authentication Errors (via VPN)
Greetings--- I have a Nighthawk X4 (R7500), and have enabled the VPN Service per this article: https://kb.netgear.com/25389/Enabling-VPN-service-on-a-Nighthawk-router-using-a-MAC-OS-computer Ev...
I resolved this by switching to TCP Mode and redownloading the openvpn config.
The biggest differences were:
client
dev tap
proto tcp
sndbuf 0
rcvbuf 0
[...]
More info:
It looks like I get a connection and I am able to see UDP RW packets correctly.
I am able to connect to the router itself via http (e.g. 10.0.0.1), but it generates the HMAC authentication messages and moves VERY slowly.
I am able to connect to my local workstations via RDP, but it is very very slow.
For a test, I forwarded RDP ports and it moves very quickly/normally.
So it appears that there is something lost in the decryption? overhead?
I resolved this by switching to TCP Mode and redownloading the openvpn config.
The biggest differences were:
client
dev tap
proto tcp
sndbuf 0
rcvbuf 0
[...]