New 1Gbps connection; router only lets 100Mbps
So I recently upgraded my Comcast connection to 1Gbps down/35Mbps upload.
From the modem directly, speedtest showcases those speeds
Once I add the router to the mix, both wireless and hard wire connections all drop to 100Mbps down/5Mbps upload
I have swapped out the cable from modem to router with a new Cat6 cable - no luck.
I called Comcast back twice and had them ensure everything was good with signal, modem profiles, house wiring, etc. - no luck
I have software rev 2.6.1, fully updated as of today (Feb 8, 2017).
Any ideas on why this would be happening?