SB8600 slow speeds
I recently"upgraded" my modem from the Arris 6190 to the Motorola SB8600. While I got great speeds with the Arris when it was running , It would often time out and needed to be rebooted several times a day. Prior to the replacement Speedtest showed DL speeds averaging 170 Mbps.. Since the replacement I am averaging 48-60 Mbps. I mentioned this to the telephone tech support and she stated it may take several days to regain my full speeds( BS answer, but I had things to do and it was Friday afternoon so I let it slid)
the Modem is running 5600.18.2.9 firmware, and all the channel readings look good. Event log is clear for the past two days. and I have checked and tightened all connections.
Are there issues with these modems?