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Upgrade from Arris TM822R to Arris SBV3202 – Good download improvement but still stuck with 6 Mpbs Upload speed
I have been using Arris TMR822R for years, got an upgrade to 1 Gbps more than a year ago and only decided recently to upgrade to Arris SBV3202 to improve my overall performance.
Performance on Arris TM822R was/is:
Max Download speed 300 Mbps, Upload Speed: 6 Mbps. Please note that I used to get 12 Mbps in upload and only in the last few months I observed that the upload speed had degraded to 6 Mpbs. The upstream parameters of TMR822R showed an upstream power below the acceptable signal level: +51 dBmV to 45 dBmV (see https://arris.secure.force.com/consumers/articles/General_FAQs/TM822G-CT-TM822R-Cable-Signal-Levels/?l=en_US&fs=RelatedArticle)
Upstream
|
UCID |
Freq |
Power |
Channel Type |
Symbol Rate |
Modulation |
|
|
Upstream 1 |
78 |
30.10 MHz |
36.50 dBmV |
DOCSIS2.0 (ATDMA) |
5120 kSym/s |
64QAM |
|
Upstream 2 |
80 |
17.30 MHz |
35.75 dBmV |
DOCSIS2.0 (ATDMA) |
5120 kSym/s |
64QAM |
|
Upstream 3 |
79 |
23.70 MHz |
35.75 dBmV |
DOCSIS2.0 (ATDMA) |
5120 kSym/s |
64QAM |
|
Upstream 4 |
77 |
36.50 MHz |
35.50 dBmV |
DOCSIS2.0 (ATDMA) |
5120 kSym/s |
64QAM |
Performance on Arris SBV3202:
Max Download speed 720 Mbps – good improvement but Upload Speed still at 6 Mbps. The upstream parameters of SBV3202 showed an upstream power below the acceptable signal level of +51 dBmV to 45 dBmV as with TM822R (see https://arris.secure.force.com/consumers/articles/General_FAQs/SBV3202-Cable-Signal-Levels)
Upstream
|
UCID |
Freq |
Power |
Channel Type |
Symbol Rate |
Modulation |
|
|
Upstream 1 |
78 |
30.10 MHz |
36.50 dBmV |
DOCSIS2.0 (ATDMA) |
5120 kSym/s |
64QAM |
|
Upstream 2 |
80 |
17.30 MHz |
36.75 dBmV |
DOCSIS2.0 (ATDMA) |
5120 kSym/s |
64QAM |
|
Upstream 3 |
79 |
23.70 MHz |
35.50 dBmV |
DOCSIS2.0 (ATDMA) |
5120 kSym/s |
64QAM |
|
Upstream 4 |
77 |
36.50 MHz |
36.00 dBmV |
DOCSIS2.0 (ATDMA) |
5120 kSym/s |
64QAM |
I contacted Arris and they confirmed that the Upstream Power level was not within the expected range.
I did contact Comcast through the chat and asked to check the Upstream power level on their side. The representative was not able to confirm it. Instead I was only given what seems the standard answer: “the modem is unable to handle the speed, I'd suggest you to check with the Original Manufacturer”. Very helpful. There was no change in my house internal connections in the past 2 years so if my upstream signal level went down in the past months, it is more likely due to some work Comcast did in my neighborhood, like for example connecting my new neighbor few months back.
How do we reach technical support Tier 2 at Comcast so I can get real support on this issue?
No Responses!