Unfortunately no it is a Rogers issue. I have tested this many ways. It also only impacts Mass Effects MULTIPLAYER. Steps I have done to confirm the issue is with Rogers.
1. NAT is Open on Xbox One with a static IP address assigned and all the ports suggested by Microsoft and EA for Andromeda correctly routed to Xbox One
2. Every other multiplayer game works perfectly including recent releases like For Honor, Battlefied 1, Madden 17, Destiny, Ghost Recon Wildlands, Rainbow Six Seige.
3. The issue is not present if I use my cell phone as a mobile hotspot and connect to Xbox Live. The phone is giving an IPv6 address as well but whatever routing issue is present with Rogers Cable Internet is not present on their mobile network.
4. I have used two separate modems the older CGN and now the new CODA modem and both had the same issue.
5. The issue is not present when I took my Xbox to a family members house whose Rogers modem was running an older firmware that was only providing IPv4 addresses. When only connected to IPv4 the issue again was fixed.
6. I have factory reset both modems I tried, tested with UPNP on and off, tested with DMZ on and off. Factory reset Xbox One, and hard booted Xbox One multiple times.
No matter what troubleshooting step I took Mass Effect Andromeda multiplayer and NHL 17 head to head both are completely unplayable as neither will connect to the opponent/host while using Rogers Cable Internet with an IPv6 address.
I'm not saying you dont have an issue, I'm saing I have the same game and dont have these issues with IPV6 enabled and multiplayer, which is why i stated something else is afoot.
Aside when xbox live was having issues for the past few days i have not had any issues connectivity wise on Mass Effect: Andromeda.
The problem with that stock reply from EA support is it isn't true. Multiplayer games work fine with IPv6. As I mentioned I can play every other multiplayer game with no issues on Xbox Live even some EA titles like Madden and Battlefield 1. It's these two games and whatever routing technique they use to connect peers. The only fix is for them to patch the game which they won't since this issue impacts probably less then 1% of the player base or for Rogers to fix whatever is clogging the routing or give us the option to disable IPv6
It should be under network settings on the console, then choose advanced settings.
You can also do this on the modems end by address reservation via mac address. But setting it on the console will ensure that its forced to IPV4.