Packet loss and internet drop outs, high uncorrectables, issue present on multiple modems, SB6183, SB6121, Dynamic Range Window violation
Issue present is intermittent packet loss as well as disconnection of internet entirely. High latency as well. Issue is present whether directly connect to modem or via router through a hardwire or wireless. Two modems (SB6183, SB6121) present same issue of packet loss and disconnection. Internet paid for is 30down/3up. Speeds have no issue when connection is working, speedtest.net shows 30/3. Modem shows very high numbers of uncorrectables, in the millions, on several channels. Modem logs show Dynamic Range Window violation over and over. A tech has been out and put new ends on the cabling except for the pole. Connection is a straight shot from Cox pole to the house. It connects to a grounding block and then a cable goes from there directly to the modem. No wallplates, splitters, etc.
Since tech support is useless I am reaching out via the forum. Resetting my modem will not do anything and the signal levels look great whenever I call.
The tech saw the dropouts (hardwired computer running ping tests to the internet, packet loss and disconnection occured) occur after he redid connections and was not able to help further.
Any advice or solution would be appreciated. Any logs required will be given.