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user_9c5f08
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Wednesday, December 13th, 2023

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how many Upstream Channels should be in MT7711?

 I see some post that have 5 upstream channels... 
 Also getting disconnections, T3 time out in the event log.
Can you also change downstream setting Value? Are the signals good? what are the Ideal level?
Connection
   eRouter    
   eRouter Provisioning Mode
  •  Bridge eRoute_IPv4only eRoute_IPv6only eRoute_DualMode 
  





  


   Startup Sequence    
   Startup Step Status Comment

  
   Acquire Downstream Channel 543000000 Hz Locked
  
   Upstream Connection OK Operational
  
   Boot State OK Operational

  
   Configuration File OK
  
   Security Enabled BPI+
  


   Connection Status    
   System Up Time 3 days 22h:24m:12s  
  
   Network Access Allowed  
  


   Downstream Bonded Channels  
  
   Channel Lock Status Modulation Channel ID Freq. (MHz) Pwr (dBmV) SNR (dB) Corrected Uncorrected
1 Locked QAM256 21 543.0 0.7 41.7 78 0
2 Locked QAM256 1 417.0 -0.1 41.7 13 0
3 Locked QAM256 2 423.0 -0.2 41.7 23 0
4 Locked QAM256 3 429.0 -0.1 42.0 25 0
5 Locked QAM256 4 435.0 -0.2 41.9 41 0
6 Locked QAM256 5 441.0 -0.5 41.7 27 0
7 Locked QAM256 6 453.0 -0.5 41.8 50 0
8 Locked QAM256 7 459.0 -0.3 41.8 30 0
9 Locked QAM256 8 465.0 -0.4 41.4 43 0
10 Locked QAM256 9 471.0 -0.3 41.3 44 0
11 Locked QAM256 10 477.0 0.0 41.6 72 0
12 Locked QAM256 11 483.0 0.4 41.9 44 0
13 Locked QAM256 12 489.0 0.5 41.8 49 0
14 Locked QAM256 13 495.0 0.6 41.7 47 0
15 Locked QAM256 14 501.0 0.8 41.8 33 0
16 Locked QAM256 15 507.0 0.8 36.8 37 0
17 Locked QAM256 16 513.0 0.9 42.6 73 0
18 Locked QAM256 17 519.0 1.0 43.2 53 0
19 Locked QAM256 18 525.0 0.9 43.1 80 0
20 Locked QAM256 19 531.0 1.1 43.2 63 0
21 Locked QAM256 20 537.0 1.2 43.2 92 0
22 Locked QAM256 22 555.0 1.2 43.1 87 3
23 Locked QAM256 23 561.0 1.3 43.1 100 0
24 Locked QAM256 24 567.0 1.2 43.5 88 0
Total             1292 3


   Upstream Bonded Channels  
  
   Channel Lock Status Channel Type Channel ID Symb. Rate (Ksym/sec) Freq. (MHz) Pwr (dBmV)
1 Locked ATDMA 53 5120 16.3 47.3
2 Locked ATDMA 54 5120 22.8 47.5
3 Locked ATDMA 55 5120 29.2 48.0
4 Locked ATDMA 56 5120 35.6 47.8
5 Not Locked Unknown 0 0 0 0.0
6 Not Locked Unknown 0 0 0 0.0
7 Not Locked Unknown 0 0 0 0.0
8 Not Locked Unknown 0 0 0 0.0


   Downstream Frequency Setting    
   Downstream Frequency Select   
 

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2 years ago

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XfinityJustinC

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1.5K Messages

2 years ago

Hello, @user_9c5f08 Thank you for reaching out over Xfinity Forums for support, you have contacted the right place for assistance. I definitely want to help answer your questions for your in regard to the modem. 

 

For modem signal levels, I found this post which has some great information from our community expert @EG: https://forums.xfinity.com/conversations/your-home-network/what-are-normal-signal-levels/602dafd4c5375f08cd18a639. There are also some tips mentioned to check your connections. 

 

In regard to the number of channels, I could find that there should be at least 4 open. I did find this article that goes over channel selection or mode: https://www.xfinity.com/support/articles/change-wifi-mode-admin-tool-xfinity-xfi. You would want to look at the section of using the Admin Tool since you don't have an xFi gateway. 

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EG

Expert

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112.2K Messages

2 years ago

@user_9c5f08 

FWIW. That second linked article discusses WiFi channels, not the upstream channels that a cable modem connects to.

(edited)

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