Cable Internet Issues

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Hi there!
I have always been able to upload very high at 5 MB/s. I stream live and ha
ve never had any issues. All of a sudden one day about 2 weeks ago my uploa
d started going wacky. It drops from the low side to very low within a few  
seconds, and then goes from being on the very low end to having 0.
Speedtests have ALWAYS come up fine, but sometimes stagger a bit while it's
 running. I have tried it on a few different computers, with different prog
rams, etc. I even reformatted my PC.  

I use TekSavvy which runs off of Rogers' lines. I replaced our modem and al
l of the ethernet cables. We even tried using a different wall socket for t
he power.  

When doing traceroutes, 7-30 have Request Timed out, as well as 2 and 5.

I have had 2 rogers technicians in already. They have replaced everything t
hey say they could possibly replace and appear stumped when they can't figu
re it out.  

In the event log of the modem we have:
 Critical (3)      Started Unicast Maintenance Ranging - No Response received  
- ..
Critical (3)      Received Response to Broadcast Maintenance Request, But no U
n...  
 Warning (5)      DHCP WARNING - Non-critical field invalid in response ;CM-MA
C...  
 Critical (3)      SYNC Timing Synchronization failure - Failed to acquire QAM
/Q...  
 Critical (3)      SYNC Timing Synchronization failure - Failed to acquire FEC
 f...  

Repeated a bunch of times.

Cable Signal Details
Forward Path:  
Channel    Frequency    Power    SNR    BER    Modulation
1    651.0 MHz    9.3 dBmV    41.9 dB    0.000 %    256 QAM
2    615.0 MHz    8.9 dBmV    41.3 dB    0.000 %    256 QAM
3    621.0 MHz    9.2 dBmV    41.4 dB    0.000 %    256 QAM
4    633.0 MHz    9.5 dBmV    41.6 dB    0.000 %    256 QAM
5    639.0 MHz    9.5 dBmV    41.4 dB    0.000 %    256 QAM
6    645.0 MHz    9.4 dBmV    41.3 dB    0.000 %    256 QAM
7    657.0 MHz    9.4 dBmV    41.7 dB    0.000 %    256 QAM
8    663.0 MHz    9.4 dBmV    41.4 dB    0.000 %    256 QAM
Return Path:  
Channel ID    Frequency    Power    Modulation
6    30.6 MHz    47.0 dBmV    64 QAM
5    38.6 MHz    47.0 dBmV    64 QAM
7    23.7 MHz    47.0 dBmV    64 QAM
0    0.0 MHz    0.0 dBmV    QPSK

It is a Thompson DMC476 modem.

I am not too sure what else to do... it worked fine one day and not the nex
t. Is it possible that there was an update in firmware on the modem? Would  
it not have been replaced as I purchased a new one? Is there something that
 I have maybe missed setting up?  

Thank you so so much for any input! Feeling desperate here.

Re: Cable Internet Issues
On Tue, 9 Jun 2015 13:21:06 -0700 (PDT), mopgarden@gmail.com wrote:

Quoted text here. Click to load it

Upload a different type of traffic to a different destination to see if your
ISP is throttling or rate shaping your streaming traffic. You might try FTP,
for example, or even NNTP. Downloads are fine?

Quoted text here. Click to load it

The signal levels look fine in both directions. Personally, I prefer
downstream levels closer to 0dBmV, but yours are within acceptable limits.

--  
Bill

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