I just purchased a RB750Gr3. So far I love it. The purchase was made because my old router wouldn’t do more than 40Mbps over VPN. When I saw advertisements for the RB750Gr3 doing 400Mb+ over VPN I quickly made the purchase. Problem is I’ve been unable to obtain speeds over 10Mb so far. I have tried with 3 different VPN providers (EarthVpn, Private Internet Access, and UnblockVPN). I have setup PPTP and L2TP connections with each provider in various parts of the USA but am unable to get over 10Mb speeds. When using a desktop client from a windows machine I am easily able to get over 100Mb. Without VPN my ISP delivers 200Mb speeds.
Troubleshooting steps have consisted of changing the MTU and MRU values between 1300 and 1450. I have deleted and recreated all of the PPP, Firewall, and Route rules. I have also reset the router to factory defaults several times but no luck.
I am using the latest firmware of 6.38.