Your power levels and SNR look fine. QAM on the upstream is wrong but that would usually only affect upstream.
Are you doing the speed test on speedtest.net or thinkbroadband.com?
speedtest.net can often look good because it uses multiple thread downloads. Thinkbroadband does single thread download (equivalent of downloading a file over HTTP) and multi thread tests.
For me, single thread has massively reduced since before December 2016 and its to do with an issue with QOS on RiverDelta (Motorola) CMTS. My web browsing and streaming is generally fine, its any file downloads I do that are like ADSL speeds (and its not the server and bandwidth, this is from big players and a work server that has a HUGE pipe to the internet).
It used to work at like 20MB per second from big providers like nvidia.com, microsoft.com, apple.com, intel.com but hasn't since December 2016 when VM made a change in their network.
Thinkbroadband gives a real life picture of what is happening.....assuming you are not in a known over utlisation area or got power level or SNR issues to your modem, and that you are using wired Gigabit CAT5e or above.
In your modem logs in the Superhub/HUB 3.0, you will see CMTS MAC address in the description. Pop the first six characters in this web site and it will confirm if you have a RiverDelta CMTS so you know if you have the same issue or another one:
Hi Sam sorry for the delayed reply - I didn't get any notification that you had replied to my message.
Since I posted this, I have made several calls to the faults team. Once they did a reset and within a few minutes the speed was back up to 300mb, but a few days later back down to 1-3 again.
After another couple of calls, an engineer was booked in, and they came yesterday (18th may). They replaced the main cable from the wall to the Modem, and checked around the front of the property but reported no issues.
Yesterday evening the speed was OK - just over 200mb ( not to be sniffed at but i'm paying for 300mb and no traffic management)
Cooper1480 wrote: If you are AREA30 expect this to be on-going> I have had it for over a year (true story). 23:42 my speed is 8.46down up 9.86
Read the thread. He's not in area 30 (btw, there are multiple area 30's). He doesn't have a utilisation fault like you do, he has a noise fault. Noise faults generally get fixed in a few days to a week, once they can find what is causing the noise.
The solution, if that is the problem, is to put the Hub into modem mode and get yourself a 3rd party router. I can hearily recommend the Asus RT-AC3200.
Yeah, so now I've read the whole thread - noise faults cause random intermittent speeds on wired connections (even if you had the wifi turned off). So make sure to keep testing via a wired ethernet in modem mode to see if the problem has really gone.
Yeah all normal so far. All part of the fun with Docsis. So try turning off both the 2.4ghz and 5ghz radios when the hub is in router mode. Then test your speeds wired and see if that has any affect.
Also check the Link Rate your wired network card is connecting at when you're getting 2-3mb results. See if it's connected at 10Mb, want to rule out you don't have a dodgy ethernet cable or ethernet port on the hub. See the colour of the ethernet port light on the back of the hub should be green for gigabit, if you have a gigabit network card and ethernet cable. I know it's unlikely given you get full speeds in modem mode, but still. Humour me.