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Connectivity issues, constant internet drop out issues
I've been seeing these in my syslogs when I lose conectivity
kernel: rndbr1: received packet on l2sd0.2 with own address as source address
kernel: mroute: pending queue full, dropping entries
and these:
2020-09-14 10:03:25 [CRITICAL] Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out
2020-09-14 10:09:41 [WARNING] MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
2020-09-14 10:10:42 [CRITICAL] SYNC Timing Synchronization failure - Loss of Sync
2020-09-14 11:15:59 [WARNING] MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
2020-09-15 00:40:54 [CRITICAL] No Ranging Response received - T3 time-out
2020-09-22 19:06:13 [WARNING] Lost MDD Timeout
2020-09-23 06:38:26 [CRITICAL] No Ranging Response received - T3 time-out
2020-09-23 07:23:34 [WARNING] Lost MDD Timeout
Hardware: ASUS Ac2600 CM and WIFI router
here is CM stats:
Upstream Major Frequency
Upstream |
23700 KHz |
Downstream Major Frequency
Downstream |
615000 KHz |
Transmitter # Channel ID Lock Status Frequency Modulation Symbol Rate Channel Type Power
Upstream Channel Status |
1 | 2 | Locked | 23700000 | 64 QAM | 5120000 | ATDMA | 51.00 dBmV |
2 | 4 | Locked | 36500000 | 64 QAM | 5120000 | ATDMA | 51.00 dBmV |
3 | 3 | Locked | 30100000 | 64 QAM | 5120000 | ATDMA | 51.00 dBmV |
4 | 1 | Locked | 17300000 | 64 QAM | 5120000 | ATDMA | 51.00 dBmV |
0 | --- | Unlocked | 0 | --- | --- | --- | --- |
0 | --- | Unlocked | 0 | --- | --- | --- | --- |
0 | --- | Unlocked | 0 | --- | --- | --- | --- |
0 | --- | Unlocked | 0 | --- | --- | --- | --- |
Receiver # Channel ID Lock Status Frequency Modulation Symbol Rate SNR Power
Downstream Channel Status |
1 | 1(Prm) | Locked | 615000000 | 256 QAM | 5360000 | 37.636 dB | -1.40 dBmV |
2 | 2 | Locked | 459000000 | 256 QAM | 5360000 | 38.983 dB | -0.70 dBmV |
3 | 3 | Locked | 465000000 | 256 QAM | 5360000 | 38.605 dB | -0.90 dBmV |
4 | 4 | Locked | 471000000 | 256 QAM | 5360000 | 38.605 dB | -0.70 dBmV |
5 | 5 | Locked | 477000000 | 256 QAM | 5360000 | 38.605 dB | -0.60 dBmV |
6 | 6 | Locked | 483000000 | 256 QAM | 5360000 | 38.605 dB | -0.60 dBmV |
7 | 7 | Locked | 489000000 | 256 QAM | 5360000 | 38.605 dB | -0.70 dBmV |
8 | 8 | Locked | 495000000 | 256 QAM | 5360000 | 38.605 dB | -0.90 dBmV |
9 | 9 | Locked | 507000000 | 256 QAM | 5360000 | 38.605 dB | -1.10 dBmV |
10 | 10 | Locked | 513000000 | 256 QAM | 5360000 | 38.605 dB | -1.10 dBmV |
11 | 11 | Locked | 519000000 | 256 QAM | 5360000 | 37.636 dB | -1.00 dBmV |
12 | 12 | Locked | 525000000 | 256 QAM | 5360000 | 38.605 dB | -0.90 dBmV |
13 | 13 | Locked | 531000000 | 256 QAM | 5360000 | 38.605 dB | -1.00 dBmV |
14 | 14 | Locked | 543000000 | 256 QAM | 5360000 | 37.636 dB | -1.40 dBmV |
15 | 15 | Locked | 549000000 | 256 QAM | 5360000 | 37.356 dB | -1.60 dBmV |
16 | 16 | Locked | 555000000 | 256 QAM | 5360000 | 37.356 dB | -1.90 dBmV |
17 | 17 | Locked | 561000000 | 256 QAM | 5360000 | 37.636 dB | -1.70 dBmV |
18 | 18 | Locked | 567000000 | 256 QAM | 5360000 | 37.636 dB | -1.80 dBmV |
19 | 19 | Locked | 573000000 | 256 QAM | 5360000 | 37.636 dB | -1.70 dBmV |
20 | 20 | Locked | 579000000 | 256 QAM | 5360000 | 37.356 dB | -1.90 dBmV |
21 | 21 | Locked | 585000000 | 256 QAM | 5360000 | 32.963 dB | -1.90 dBmV |
22 | 22 | Locked | 591000000 | 256 QAM | 5360000 | 32.237 dB | -2.10 dBmV |
23 | 23 | Locked | 597000000 | 256 QAM | 5360000 | 36.610 dB | -2.20 dBmV |
24 | 24 | Locked | 603000000 | 256 QAM | 5360000 | 37.356 dB | -2.10 dBmV |
25 | 25 | Locked | 609000000 | 256 QAM | 5360000 | 37.300 dB | -1.70 dBmV |
26 | 26 | Locked | 621000000 | 256 QAM | 5360000 | 37.300 dB | -1.40 dBmV |
27 | 27 | Locked | 627000000 | 256 QAM | 5360000 | 36.900 dB | -1.40 dBmV |
28 | 28 | Locked | 633000000 | 256 QAM | 5360000 | 36.900 dB | -1.70 dBmV |
29 | 29 | Locked | 639000000 | 256 QAM | 5360000 | 36.900 dB | -1.40 dBmV |
30 | 30 | Locked | 645000000 | 256 QAM | 5360000 | 36.900 dB | -1.80 dBmV |
31 | 31 | Locked | 651000000 | 256 QAM | 5360000 | 36.900 dB | -1.80 dBmV |
32 | 32 | Locked | 657000000 | 256 QAM | 5360000 | 36.400 dB | -1.70 dBmV |
EG
Expert
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111.6K Messages
5 years ago
The upstream power is too high and it may be intermittently fluctuating even higher out of spec. That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, latency problems, and the un-bonding of channels.
In a self troubleshooting 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 5-1002 MHz, bi-directional, and no gold colored garbage types like GE, RadioShack, RCA, Philips, Leviton, Magnavox, and Rocketfish from big box stores like Home Depot, Lowes, Target, Wal-Mart etc. Splitters should be swapped with known to be good / new ones to test
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.
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EG
Expert
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111.6K Messages
5 years ago
49 is still on the high side. Looks like more work needs to be done. BTW, that splitter is a garbage brand. It is also engineered more for satellite systems than for cable systems. This can actually introduce problems. I posted info on the proper splitters for cable.
It may not be the root cause of your issue, but I would swap it to anyway. YMMV. Good luck !
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thorkhild
Frequent Visitor
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9 Messages
5 years ago
my one splitter is a 3 way splitter from IDEAL with a power pass. the power pass was conencted to my cable box, and i switched it to my modem/router.
my power lvl is now 49, and my SNR levels are about 38.9.
I'm going to go investigate using a different splitter, and the wiring outside next.
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EG
Expert
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111.6K Messages
4 years ago
Can't see your pic. Since you are a new poster, it needs to be approved by a Forum Admin. That could take some time. In the interim, you could try hosting it at one of those free third-party pic hosting sites like Imgur or Photobucket and post the link to it here.
Or copy all of the text of the status page and paste it into the body of your next post here like you did originally.
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thorkhild
Frequent Visitor
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9 Messages
4 years ago
I replaced my coax and removed an inline splitter to my CM. I am wondering if my power levels are better or worse. (no splitter levels in yellow ) If its better Ineed to still find a good splitter because my STB is not wired right now.
Receiver # Channel ID Lock Status Frequency Modulation Symbol Rate SNR Power
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thorkhild
Frequent Visitor
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9 Messages
4 years ago
new levels w/o splitter
Receiver # Channel ID Lock Status Frequency Modulation Symbol Rate SNR Power
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EG
Expert
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111.6K Messages
4 years ago
Yes. Sweet spot if it remains stable.
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thorkhild
Frequent Visitor
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9 Messages
4 years ago
splitter is rated 5-1000mhz amphenol brand (not what i ordered, but what i recieved)
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thorkhild
Frequent Visitor
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9 Messages
4 years ago
"new" 2 way splitter from amazon...
Receiver # Channel ID Lock Status Frequency Modulation Symbol Rate SNR Power
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EG
Expert
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111.6K Messages
4 years ago
The upstream power is higher than the last time you posted and the downstream power is lower. Looks like this splitter has more overall attenuation than what it is rated for.
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