Ever since I upgraded to Gigabit service and got the Arris SB8200 modem, I've been getting the following types of errors along with bad connection speeds:
"SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=xxx;CMTS-MAC=xxx;CM-QOS=1.1;CM-VER=3.1;"
"Dynamic Range Window violation"
"RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=xxx;CMTS-MAC=xxx;CM-QOS=1.1;CM-VER=3.1;"
Based on what I've been reading, my line is relatively clean and power levels on both Upstream and Downstream channels are within the acceptible range.
What is interesting is that I had a tech out to the house several months ago and he was NOT able to locate my line out at the box at the street. I didn't think too much about that at the time (the box was a bit of a "rat's nest" so it didn't surprise me).
But, now, after reading the incident below, its got me wondering if this might be my problem, too!
https://forums.xfinity.com/t5/Your-Home-Network/High-upstream-power-high-uncorrectables-count-Dynami...
"So, "somebody" didn't have enough ports on the tap for the whole section of the planned community in which we live, and decided that a splitter off the tap to feed my line and my neighbors' line was a good idea. The tech today removed that splitter, and my upstream power is magically better by -3dBmV. No uncorrectables, so far, either."
Is there a Comcast tech that monitors these forum that might be able to come out and hunt for my line at the street?
@ComcastChe
