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Forum Discussion
CBR750 problem with connection and setup
Few things happened STEP1: I had problems with internet over last 2 weeks. People during calls will complaint that i drop out. Xfinity came to check and replaced the cable but problem continues. ST...
i am trying to reply but seems my replies get deleted 😞
i have 2 satellites but i didn't set them up till now. I cannot even setup main modem, not talking about satellites
i have 3500sq ft + basement, each floor has 1 orbi, aroun 20-30ft from each other
Wired seems to be working fine, wireless seems to be a problem
i am using auto channel for 2.4ghz and 48 channel for 5ghz
it is single family house, not sure if neighbours have netgear
i am thinking to maybe do factory reset through web menu, not sure if it makes any difference
connection is good now, below are the logs
Cable Diagnostic
Status: Good
Action: Your setup looks fine. If you are still experience an internet issue, the Netgear Cable Knowledge Base can provide additional troubleshooting info.
Internet Access: Good
Downstream Status: Good
Downstream Power Level: Good
Downstream SNR: Good
Upstream Status: Good
Upstream Power Level: Good
Current time: Mon Dec 11 18:48:58 2023
Startup Procedure
Acquire Downstream Channel: 549000000 Hz Locked
Connectivity State: Ok Operational
Boot State: Ok Operational
Security: Enabled BPI+
IP Provisioning Mode: Honor MDD honorMdd(4)
Downstream Bonded Channels
Channel LockedStatus Modulation ChannelID Frequency Power SNR Correctables Uncorrectables
1 Locked QAM 256 42 447000000 Hz 7.5 38.6 0 0
2 Locked QAM 256 43 453000000 Hz 7.9 38.9 0 0
3 Locked QAM 256 44 459000000 Hz 7.5 38.9 0 0
4 Locked QAM 256 45 465000000 Hz 7.5 38.9 0 0
5 Locked QAM 256 38 471000000 Hz 7.8 38.9 0 0
6 Locked QAM 256 39 477000000 Hz 8.0 38.9 0 0
7 Locked QAM 256 40 483000000 Hz 8.0 38.6 0 0
8 Locked QAM 256 41 489000000 Hz 8.0 38.9 0 0
9 Locked QAM 256 32 495000000 Hz 8.3 38.9 5 0
10 Locked QAM 256 34 507000000 Hz 8.3 38.9 0 0
11 Locked QAM 256 35 513000000 Hz 8.3 38.9 0 0
12 Locked QAM 256 36 519000000 Hz 8.4 38.9 2 0
13 Locked QAM 256 1 525000000 Hz 8.4 38.6 0 0
14 Locked QAM 256 2 531000000 Hz 8.5 38.9 0 0
15 Locked QAM 256 3 537000000 Hz 8.5 38.6 0 0
16 Locked QAM 256 4 543000000 Hz 8.5 38.9 0 0
17 Locked QAM 256 5 549000000 Hz 8.6 38.9 0 0
18 Locked QAM 256 6 555000000 Hz 8.8 38.9 0 0
19 Locked QAM 256 7 561000000 Hz 8.8 38.6 0 0
20 Locked QAM 256 8 567000000 Hz 8.5 38.6 0 0
21 Locked QAM 256 9 573000000 Hz 8.9 38.6 0 0
22 Locked QAM 256 10 579000000 Hz 8.9 38.9 0 0
23 Locked QAM 256 11 585000000 Hz 8.9 38.6 0 0
24 Locked QAM 256 12 591000000 Hz 9.0 38.9 0 0
25 Locked QAM 256 13 597000000 Hz 9.0 38.9 0 0
26 Locked QAM 256 14 603000000 Hz 9.0 38.6 0 0
27 Locked QAM 256 15 609000000 Hz 9.1 38.6 0 0
28 Locked QAM 256 16 615000000 Hz 9.1 38.6 0 0
29 Locked QAM 256 17 621000000 Hz 9.3 38.9 0 0
30 Locked QAM 256 18 627000000 Hz 9.4 38.6 0 0
31 Locked QAM 256 19 633000000 Hz 9.4 38.6 0 0
32 Not Locked N/A 0 0 Hz 0.0 0.0 0 0
Upstream Bonded Channels
Channel LockedStatus ChannelType ChannelID SymbolRate Frequency Power
1 Locked ATDMA 4 5120 16400000 Hz 43.3
2 Locked ATDMA 3 5120 22800000 Hz 43.0
3 Locked ATDMA 2 5120 29200000 Hz 42.8
4 Locked ATDMA 1 5120 35600000 Hz 43.3
5 Locked ATDMA 10 2560 40400000 Hz 40.3
6 Not Locked N/A 0 0 0 Hz 0.0
7 Not Locked N/A 0 0 0 Hz 0.0
8 Not Locked N/A 0 0 0 Hz 0.0
Downstream OFDM Channels
Channel LockedStatus ProfileID ChannelID Frequency Power SNR/MER ActiveSubcarrier Unerror Correctable Uncorrectable
1 Locked 3 37 762000000 Hz 11.5 dBmV 39.4 dB 1108~2987 0 0 0
2 Not Locked 0 0 0 Hz 0.0 dBmV 0.0 dB 0~4095 0 0 0
Upstream OFDMA Channels
Channel LockedStatus ProfileID ChannelID Frequency Power
1 Not Locked 0 0 0 Hz 0.0 dBmV
2 Not Locked 0 0 0 Hz 0.0 dBmV
Event Log
Time Priority Description
Dec 31 1969 18:01:02 Error Missing Mandatory MDD TLV on primary DS Channel
Dec 31 1969 18:01:25 Critical No Ranging Response received - T3 time-out
Dec 11 2023 17:01:30 Warning MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Dec 11 2023 17:01:30 Notice TLV-11 - unrecognized OID
Dec 31 1969 18:01:02 Critical No Ranging Response received - T3 time-out
Dec 31 1969 18:01:05 Warning RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW
Dec 11 2023 17:43:48 Warning MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Dec 11 2023 17:43:48 Notice TLV-11 - unrecognized OID
Dec 11 2023 17:44:22 Critical Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out
Dec 11 2023 17:44:22 Warning TCS Partial Service
Dec 31 1969 18:01:04 Critical No Ranging Response received - T3 time-out
Dec 31 1969 18:01:08 Warning RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW
Dec 11 2023 17:57:44 Warning MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Dec 11 2023 17:57:44 Notice TLV-11 - unrecognized OID
Dec 31 1969 18:01:01 Critical No Ranging Response received - T3 time-out
Dec 31 1969 18:01:09 Warning RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW
Dec 11 2023 18:26:52 Warning MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Dec 11 2023 18:26:52 Notice TLV-11 - unrecognized OID
What FW version is loaded on the CBR unit and RBS's? You need to make sure the RBS are using same level FW version as what's on the CBR unit:
For that size of home, you really only need the CBR unit and just one RBS.
I would turn OFF one of the RBS and test. Too Much Wifi: https://youtu.be/UR0viMLISz4
Try setting manual channel 1, 6 or 11 for 2.4Ghz.
Cable modem is ok however the power on the down is too high:
https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router
Need to ask the ISP to turn the power down a bit to fit better into specs. Or install a coax able line splitter or a -3db coax line attenuator.
Any Criticals, Errors or Warnings seen in the event logs needs to be reviewed and resolved by the ISP. Indicates a signal issue on the ISP line up to the modem.
hello
satellites are running with V4.6.14.3 (also latest available)
I tried without satellites - problem exist even if satellites are disconnected...
i will try changing channel settings but problem starts immediately after factory reset, seems i am never going to be able to set system up without cable connection?
I presume you have contacted the ISP to have them associate the CBR with there services right?
That has to be done first.
Is the the main issue your having?
Still need to take to the ISP about the power levels.
Should be able to use a wired PC and web browser to set up the CBR unit at 192.168.1.1.
yes
i have activated the modem with Xfnity.
Xfinity technician visited, they replaced entire cable and said everything is good at their side.
Ultimately problem seems to be with ORBI. When i connect with my mobile it is shwoing no internet conenection while with cable connection internet is working. It also seems that it is not full factory reset as it is still somehow not working when i try to reuse previous wifi name. if i setup new wifi network it seems to work better (after cable setup)