Private VPN speed issue

[Robert Zellers]

I've set up a private VPN so that I can access certain business data from other locations. For the most part it works like a charm. But from one of my offices, my speedtest when the vpn is active is roughly 2Mbps, and when the vpn is off it runs at the 60Mbps as provided by my isp. From home, all my machines run at full 60Mbps with vpn on or off. I use the extact same persistent route in the route table at both locations. At the slow office, I did a 'route -f' to clear the table and reapplied the persistent route... no help.
So the only thing I'm left with in my head is the router. Is it possible that an older route wouldn't have full VPN speed? The router at the slow location is a Linksys EA6900, and the one at home that runs fine is an Asus AC5300. I'm open to suggestions, but am now beginning to wonder if it isn't just a hardware limitation. Linksys is flashed currect BTW.

Thanks

Office 1 (VPN lives here)
Home all speeds good
Office 2 (VPN 2 Mbps max, non-VPN flies)

 

[CaptainSTX]

The ea6900 has an 800 Mhz processor. The ASUS 5300 has a quad core 1800 Mhz processor.

With VPNs the encryption needs a fast processor though the 2 Mbps on the ea6900 seems slow as with my N66 with a 600 Mhz processor I can do 10 - 15 Mbps.

 

[Robert Zellers]

I expected to lose significant overhead to the encryption, especially since the PC doesn't have a newer gen cpu that handles that on the core now, but this just seemed like too much to me. I'd have been ok with even a 75% loss, but 2 meg from a 60 meg feed... guess I was being optimistic.

Thanks

 

[CaptainSTX]

I expected to lose significant overhead to the encryption, especially since the PC doesn't have a newer gen cpu that handles that on the core now, but this just seemed like too much to me. I'd have been ok with even a 75% loss, but 2 meg from a 60 meg feed... guess I was being optimistic.

Thanks

I agree you should be able to do better than 2 Mbps. Perhaps the VPN server/client being run on the ea6900 isn't as well optimized as on the ASUS 5300.

 

[RMerlin]

The work place might also be either throttling or fragmenting your traffic.