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Started By
Message
re: Motorola/Surfboard Modem SB6121 bad?
Posted on 2/24/17 at 4:27 pm to NASA_ISS_Tiger
Posted on 2/24/17 at 4:27 pm to NASA_ISS_Tiger
I doubt your SB6121 has suddenly gone bad. I would call your provider and complain before doing anything, like buying a new modem.
As for your new SB6190, that modem has a well-known problem with latency spikes due to a bug in the Intel Puma chipset it uses. The good news is, Arris says Intel has provided them with a fix. The bad news is, they haven't rolled it out yet, and your provider may not roll it out right away when it does become available. Much more here, in the thread where I learned about it:
LINK
As for your new SB6190, that modem has a well-known problem with latency spikes due to a bug in the Intel Puma chipset it uses. The good news is, Arris says Intel has provided them with a fix. The bad news is, they haven't rolled it out yet, and your provider may not roll it out right away when it does become available. Much more here, in the thread where I learned about it:
LINK
Posted on 2/25/17 at 11:38 pm to Spock's Eyebrow
Just to close the loop on this. Seemed like it magically fixed itself...I left the 6121 unplugged all day came home and wanted to make sure the line hadn't been cut so I turned on the only cable tv in the house (we are on Direct TV for our TV's we watch)....the Comcast box was just part of a deal...that TV worked fine...cable showed video and all channels worked so I knew there was no line cut. Went to modem with laptop directly plugged in again..and the signal strength on the D/S leg had dramatically improved. As a result, the bandwidth returned to nominal values. Other people reported later last night they were having issues as well, so I still have the 6190, but I won't open it until I need to. Currently trying to force a heat condition where the modem is located (in a coat closet with the door closed and light is on (incandescent)...so in case the modem is overheating I'm trying to recreate the problem. So far 24 hours no issue. Temp in closet around 80 degrees only as measured with thermocouple.
Posted on 2/27/17 at 12:17 pm to Spock's Eyebrow
quote:
I doubt your SB6121 has suddenly gone bad.
I've had a modem go bad what seemed like overnight. The SB6141 utilizes 8 channels while the SB6121 only has 4. My modem lost half the channels and whether it happened all at once or over time, I don't know. However, losing just one channel out of 8 only has a 12.5% impact while losing one out of four has a 25% impact.
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