Hi Guys,

I have an EdgeRouter that I am using to connect to Spark. It has VLAN 10 tag and PPPoE working. Internet is working and is configured with the default settings.

The next step is to configure the router with Site to Site VPN so then we can link our work network (10.8.0.0/24) to PROD VPC (10.0.0.0/15).

We currently establish our VPN connection using a PFSense box however that keeps shitting itself every month.

I have followed the guide published by Ubiquiti:

https://help.ui.com/hc/en-us/articles/115015979787-EdgeRouter-Route-Based-Site-to-Site-VPN-to-AWS-VPC-VTI-over-IKEv1-IPsec-

The guide is good and we can establish connection however, once VPN is establish, LAN computers have really shitty internet. I mean packet loss (for example, ping google.co.nz with 50% loss), websites requiring refreshes before they load.

I have a feeling its to do with MTU/VTI interfaces however, my knowledge of this router and networking generally is quite shit.

Is there anything that you can suggest I try looking at? The boss is open to hiring someone to come and fix this mess. We are based in Wellington :)

Cheers for any suggestions.

Und.