Visitor
•
4 Messages
Motorola Mb8611 Not All Upstream Locking
I just upgraded to a Motorola Mb8611 and am only getting 2 upstream channels to lock. A handful of years ago I removed a splitter to the modem and added a female to female extender. It was just the top rated on Amazon (I think vce with white on the inside). The not locked channels are over 50db. I'm thinking maybe the extender is why and wouldn't mind trying before getting a tech out.
My question for you is what is the absolute best female to female coaxial extender or female to male coaxial cable to just bypass the extender. Doing research it seems like blue or orange on the inside is best and I see a vce with blue on the inside but am waiting to pull the trigger. Attached is the modem configuration and I will do my best to supply any more information.
Connection
Startup Sequence
Startup Step Status Comment
Acquire Downstream Channel 507000000 Hz Locked
Upstream Connection OK Operational
Boot State OK Operational
Configuration File OK
Security Enabled BPI+
Connection Status
System Up Time 1 days 04h:53m:09s
Network Access Allowed
Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Freq. (MHz) Pwr (dBmV) SNR (dB) Corrected Uncorrected
1 Locked QAM256 5 507.0 5.2 42.1 2 0
2 Locked QAM256 2 489.0 5.0 42.2 4 0
3 Locked QAM256 3 495.0 5.1 42.1 3 0
4 Locked QAM256 4 501.0 5.1 42.3 3 0
5 Locked QAM256 6 513.0 5.6 42.3 3 0
6 Locked QAM256 7 519.0 5.3 42.3 2 0
7 Locked QAM256 8 525.0 5.4 42.3 3 0
8 Locked QAM256 9 531.0 5.5 42.3 2 0
9 Locked QAM256 10 537.0 5.5 42.4 1 0
10 Locked QAM256 11 543.0 5.5 42.1 1 0
11 Locked QAM256 12 549.0 5.6 42.1 2 0
12 Locked QAM256 13 555.0 5.8 42.1 1 0
13 Locked QAM256 14 561.0 6.0 42.3 1 0
14 Locked QAM256 15 567.0 6.0 42.0 2 0
15 Locked QAM256 16 573.0 6.1 42.2 1 0
16 Locked QAM256 17 579.0 6.1 42.0 1 0
17 Locked QAM256 18 585.0 6.2 42.2 2 0
18 Locked QAM256 19 591.0 6.1 42.1 0 0
19 Locked QAM256 20 597.0 6.1 42.1 1 0
20 Locked QAM256 21 603.0 6.0 41.8 7 0
21 Locked QAM256 22 609.0 5.9 41.9 2 0
22 Locked QAM256 23 615.0 6.0 41.8 0 0
23 Locked QAM256 24 621.0 6.0 41.8 11 37
24 Locked QAM256 25 627.0 6.0 41.5 8 41
25 Locked QAM256 26 633.0 6.0 41.5 20 30
26 Locked QAM256 27 639.0 5.9 41.3 14 35
27 Locked QAM256 28 645.0 6.0 41.4 7 42
28 Locked QAM256 29 651.0 5.9 41.3 7 43
29 Locked QAM256 30 657.0 5.8 41.4 12 36
30 Locked QAM256 31 663.0 5.8 41.4 10 39
31 Locked QAM256 32 669.0 5.7 41.6 7 42
32 Locked OFDM PLC 37 690.0 5.9 41.6 432127746 0
Upstream Bonded Channels
Channel Lock Status Channel Type Channel ID Symb. Rate (Ksym/sec) Freq. (MHz) Pwr (dBmV)
1 Locked SC-QAM 1 5120 35.6 47.8
2 Not Locked SC-QAM 2 5120 29.2 53.5
3 Not Locked SC-QAM 3 5120 22.8 52.0
4 Not Locked SC-QAM 4 5120 16.4 49.0
5 Locked SC-QAM 5 1280 39.6 47.0
Downstream Frequency Setting
Downstream Frequency Select
EG
Expert
•
107.2K Messages
4 years ago
The upstream power is too high. That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, latency problems, and the un-bonding of channels.
In an effort to try to obtain better connectivity / more wiggle room, check to see if there are there any excess/unneeded coax cable splitters in the line leading to the modem that can be eliminated/re-configured. Any splitters that remain should be high quality and cable rated for 5-1000 MHz, bi-directional, and no gold colored garbage from Radio Shack, Home Depot, Target, etc. Splitters should be swapped with known to be good / new ones to test.
Also check the coax cable for any damage such as cuts, nicks, kinks, sharp bends, etc.
If there aren't any unneeded splitters that can be eliminated and if your coax wiring setup can't be reconfigured so that there is a single two-way splitter connected directly off of the drop from the street / pole with one port feeding the modem and the other port feeding the rest of the house/equipment with additional splits as needed and you've checked all the wiring and fittings for integrity and tightness and refresh them by taking them apart then check for and clean off any corrosion / oxidation on the center wire and put them back together again, then perhaps it's best to book a tech visit to investigate and correct.
Good luck with it !
0
0
jagdrummer
Visitor
•
4 Messages
4 years ago
There was a splitter and I removed it and added a female to female extender. Do you have examples of a high quality extender or female to male coax cable?
2
0
jagdrummer
Visitor
•
4 Messages
3 years ago
I tried moving the modem and completely removing the female to female splitter and extra coax cable and I plugged the modem directly into the one coming out of the wall. I think I need to get a tech to come out and look at the infrastructure.
1
0