TP Link X60 with Xfinity Gateway

I hooked up three nodes, one directly to the gateway as an AP and it worked well but was later told to hook it up directly in bridge mode as that's the preferred method from TP link. In doing so I lost all connection. after struggling to reset it several times, I went back to bridge disabled and using it as an AP, again resetting it. Now the speeds even worse, averaging .33MBPs which doesn't make sense. It was 800 MB on the plan, averaging 150-250 on desktop or phone speed tests before the change. Note, before installing the Mesh, i was getting 3-7 at the desktop so the 150-250 is great for what I can do. Xfinity support was useless.