I replaced my router, which was a Linksys EA4500 with a Netgear R6300 because I was having issues. My cable modem is an Arris CM820 Docsis 3 modem. The modem WAN port is registering a link speed of 100M instead of 1000M. What could be causing this? Could their be an issue with the modem or the new router? I have tried different CAT5E cables with no success.
I have plugged my PC ethernet cable into the WAN port on the router and it registers at 1000M. On the cable modem, when I connect my PC to it directly it still links at 100M instead of 1000M and my PC has a gige port.
Do you have any ideas or advice on resolving this because I have a feeling that the low link speed is going to impact the speed of my Internet from my ISP.