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Slow speeds since maintenance outage on 4/17

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I've been having extremely poor performance on any network outside of Comcast (Xfinity streaming is fine). General traffic is slow and sites like Amazon, Netflix and Hulu are absurdly slow. I can't even stream 360p video on Youtube without caching every 5 seconds. I've tried power cycling/resetting all equipment, restarting all PCs, etc. Nothing works.

 

Here's the required info:

 

Downstream 

SNR: 35.973 | dB 35.418 dB |  35.595 dB | 36.387 dB

Modulation: 256QAM | 256QAM | 256QAM | 256QAM

Power: 5.158 dBmV | 4.456 dBmV | 5.079 dBmV | 4.959 dBmV  

 

Upstream

Symbol Rate: 5120 KSym/sec | n/a | 5120 KSym/sec | 5120 KSym/sec

Power: 40.2500 dBmV | n/a | 41.7500 dBmV | 40.2500 dBmV 

Modulation: 64QAM | n/a | 64QAM | 64QAM 

 

 

Today's log:

MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=c4:--:--:--:--:--;CMTS-MAC=00:--:--:--:--:--;CM-QOS=1.1;CM-VER=3.0; 2014/04/21 12:13:51 warning

 

Modem is the Xfinity SMCD3GNV

 

I've contacted tech support online and on the phone, no help either way. ShaperProbe doesn't seem to work for me so I can't post that data (it always says there are no servers). I'm paying for the 50mbps BLAST! package but I've been averaging between 1-5mbps since last Thursdays service outage.

 

If I do the speed test on the Comcast hosted server, I'm getting my full 50-60mbps, but that really isn't the issue here, accessing content on Comcasts own servers. It's everything ELSE I want to access that runs like mud.

 


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