Highlighted
Spectator

Help reading signal levels

I've been dealing with some online gaming persistent connection issues for quite a while, so about a month ago I decided to invest in a Netgear CM-600 and an orbi home internet system. This has greatly improved connectivy to many of the devices in my home, but I continue to have issues with lag in one game. I've trouble shot with the game's manufacturer and they insist it is an issue with my ISP. I've run endless trace routes to the games servers and there really is nothing there that should be causing my problems.  My console is plugged in to the base Orbi, so there shouldn't be any wireless issues. I am using the splitter to run the Time Warner modem for my phone, but I tried it for about a week direct into the CM-600 with no discernable improvement.

 

I was hoping someone could take a look at my signal levels and let me know if there's anything I can persue with tech support.

 

Thanks

 

Frequency start Value
This field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Enter the new start frequency and restart the cable modem for it to take effect.
Starting Frequency
 
Startup Procedure
ProcedureStatusComment
Acquire Downstream Channel501000000 HzLocked
Connectivity StateOKOperational
Boot StateOKOperational
SecurityEnableBPI+
IP Provisioning ModeHonor MDDIPv6 only
 
<tabindex=-1>Downstream Bonded Channels
ChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectablesUncorrectables
1LockedQAM2567501000000 Hz-8.1 dBmV39.5 dB120
2LockedQAM2562471000000 Hz-7.9 dBmV39.6 dB4430
3LockedQAM2563477000000 Hz-7.7 dBmV39.8 dB230
4LockedQAM2564483000000 Hz-7.8 dBmV39.7 dB220
5LockedQAM2565489000000 Hz-8.0 dBmV39.6 dB190
6LockedQAM2566495000000 Hz-7.9 dBmV39.7 dB220
7LockedQAM2561465000000 Hz-7.8 dBmV39.6 dB156200
8LockedQAM2568507000000 Hz-7.9 dBmV39.2 dB140
9LockedQAM2569513000000 Hz-8.0 dBmV39.5 dB150
10LockedQAM25610519000000 Hz-8.3 dBmV39.2 dB100
11LockedQAM25611525000000 Hz-8.5 dBmV39.2 dB130
12LockedQAM25612531000000 Hz-8.9 dBmV38.9 dB100
13LockedQAM25613537000000 Hz-9.0 dBmV38.8 dB140
14LockedQAM25614543000000 Hz-9.4 dBmV38.6 dB200
15LockedQAM25615549000000 Hz-9.4 dBmV38.6 dB170
16LockedQAM25616555000000 Hz-9.8 dBmV38.1 dB20
17LockedQAM25617561000000 Hz-10.4 dBmV37.5 dB00
18LockedQAM25618567000000 Hz-10.5 dBmV37.5 dB00
19LockedQAM25619573000000 Hz-10.8 dBmV37.1 dB00
20LockedQAM25620579000000 Hz-10.9 dBmV36.8 dB00
21LockedQAM25621585000000 Hz-10.9 dBmV36.8 dB00
22LockedQAM25622591000000 Hz-11.1 dBmV36.5 dB00
23LockedQAM25623597000000 Hz-11.3 dBmV36.2 dB00
24LockedQAM25624603000000 Hz-11.5 dBmV36.2 dB00
 
<tabindex=-1>Upstream Bonded Channels
ChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower
1LockedATDMA25120 Ksym/sec23900000 Hz42.0 dBmV
2LockedTDMA12560 Ksym/sec19000000 Hz40.8 dBmV
3LockedATDMA35120 Ksym/sec30400000 Hz44.0 dBmV
4LockedATDMA45120 Ksym/sec36900000 Hz45.3 dBmV
 
Current System Time: Thu Jul 27 09:18:09 2017 
23 REPLIES 23
Expert

Re: Help reading signal levels

Modem must be on the first 2 way splitter, yours isn't.

 Should be no splitters if you're internet only.

It's also possible that the outside line is chewed up and full of water.

optimum level ds is in the -5 to +5 range but should work from -8 to +10

 Any one channel below -10 is an issue and causing errors

 

 

Spectator

Re: Help reading signal levels


@MsRaye wrote:

Modem must be on the first 2 way splitter, yours isn't.

 Should be no splitters if you're internet only.

It's also possible that the outside line is chewed up and full of water.

optimum level ds is in the -5 to +5 range but should work from -8 to +10

 Any one channel below -10 is an issue and causing errors

 

 


Hmm, sorry I should clarify in the room with the modem there is no cable box, so I am on the first and only splitter.  I have triple play and therefore need the original modem for the phone. 

 

There is a cable box in another room so I am not sure how the wiring is done regarding that, but there are no other splitters in the house that I am aware of.

Expert

Re: Help reading signal levels

That's already a problem, You have 7 dB of loss from known splitters.... must be another one!

You need to find where the first splitter is and verify that it's a 2 way and not a 4 way with open ports and that all coax is rg6, not rg 59... Look at / in the outside box and where line enters!

Sounds like you need a tech out. There's also a lot of ingress at 465 mHz indicating something is corroded or loose, might be a chewed up and waterlogged outside cable

There is too large of a dB swing between the lowest and highest channel indicating a coax side issue.

Unknown if that will fix all conectivity issues but it must be repaired first.

 

 

Spectator

Re: Help reading signal levels


@MsRaye wrote:

That's already a problem, You have 7 dB of loss from known splitters.... must be another one!

You need to find where the first splitter is and verify that it's a 2 way and not a 4 way with open ports and that all coax is rg6, not rg 59... Look at / in the outside box and where line enters!

Sounds like you need a tech out. There's also a lot of ingress at 465 mHz indicating something is corroded or loose, might be a chewed up and waterlogged outside cable

There is too large of a dB swing between the lowest and highest channel indicating a coax side issue.

Unknown if that will fix all conectivity issues but it must be repaired first.

 

 

 

I contacted technical support and the person I spoke with said he saw the problematic signal levels and wanted to reboot the modem and boost the signal. After the reboot, he said everything looked fine on his end, despite the fact that when I checked the signals, they looked the same or worse as before. He claimed this had to be a problem with my router. I assume this is because he can check the line up to the house, but since I am using my own modem he is not seeing what happens from there? As a side not, I could no longer access the modems IP address using chrome after the restart, though I was able to with edge -- that's why the report below has no formatting.

 

Anyway I also mentioned the ingress on 465 mHz and he seemed to brush it off, and said if I wanted  a tech to come out he would schedule it, which we did. So I guess that's it until Sunday. I appreciate your help and will follow up after the tech has finished.

 

 

Startup Procedure 
Procedure Status Comment 
Acquire Downstream Channel 501000000 Hz Locked 
Connectivity State OK Operational 
Boot State OK Operational 
Security Enable BPI+ 
IP Provisioning Mode Honor MDD IPv6 only

<tabindex=-1Downstream Bonded Channels</tabindex=-1 
Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables
1 Locked QAM256 7 501000000 Hz -8.6 dBmV 39.5 dB 0 0
2 Locked QAM256 2 471000000 Hz -8.3 dBmV 39.6 dB 0 0
3 Locked QAM256 3 477000000 Hz -8.2 dBmV 39.8 dB 0 0
4 Locked QAM256 4 483000000 Hz -8.3 dBmV 39.8 dB 0 0
5 Locked QAM256 5 489000000 Hz -8.5 dBmV 39.7 dB 0 0
6 Locked QAM256 6 495000000 Hz -8.5 dBmV 39.7 dB 0 0
7 Locked QAM256 1 465000000 Hz -8.3 dBmV 39.6 dB 0 0
8 Locked QAM256 8 507000000 Hz -8.5 dBmV 39.2 dB 0 0
9 Locked QAM256 9 513000000 Hz -8.6 dBmV 39.5 dB 0 0
10 Locked QAM256 10 519000000 Hz -8.9 dBmV 39.2 dB 0 0
11 Locked QAM256 11 525000000 Hz -9.0 dBmV 39.2 dB 0 0
12 Locked QAM256 12 531000000 Hz -9.4 dBmV 39.0 dB 0 0
13 Locked QAM256 13 537000000 Hz -9.6 dBmV 38.9 dB 0 0
14 Locked QAM256 14 543000000 Hz -9.9 dBmV 38.6 dB 0 0
15 Locked QAM256 15 549000000 Hz -9.9 dBmV 38.6 dB 0 0
16 Locked QAM256 16 555000000 Hz -10.3 dBmV 38.2 dB 0 0
17 Locked QAM256 17 561000000 Hz -10.9 dBmV 38.3 dB 0 0
18 Locked QAM256 18 567000000 Hz -11.0 dBmV 38.2 dB 0 0
19 Locked QAM256 19 573000000 Hz -11.1 dBmV 37.8 dB 0 0
20 Locked QAM256 20 579000000 Hz -11.4 dBmV 37.5 dB 0 0
21 Locked QAM256 21 585000000 Hz -11.5 dBmV 37.3 dB 0 0
22 Locked QAM256 22 591000000 Hz -11.9 dBmV 36.9 dB 0 0
23 Locked QAM256 23 597000000 Hz -12.1 dBmV 36.8 dB 0 0
24 Locked QAM256 24 603000000 Hz -12.3 dBmV 36.5 dB 0 0
<tabindex=-1Upstream Bonded Channels</tabindex=-1 
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1 Locked ATDMA 2 5120 Ksym/sec 23900000 Hz 41.5 dBmV
2 Locked TDMA 1 2560 Ksym/sec 19000000 Hz 40.8 dBmV
3 Locked ATDMA 3 5120 Ksym/sec 30400000 Hz 43.8 dBmV
4 Locked ATDMA 4 5120 Ksym/sec 36900000 Hz 45.3 dBmV
Current System Time: Thu Jul 27 11:41:05 2017 

Expert

Re: Help reading signal levels

"Boost the signal" They must think all customers are stupid..Cat LOLMan LOLRobot LOLSmiley LOLWoman LOLYou can't fix physical problems on the phone short of sending out a tech....

 

 

Look at the outside box, is there a splitter in it? How badly corroded is the grounding block?

 If line comes into the basement, trace it to the modems and cable box, there's another splitter somewhere, especially if there's empty jacks in other rooms . all that needs to be removed so there is only a 3 way or 2- 2way splitters....

 

Spectator

Re: Help reading signal levels

There is one three way splitter. This is because we had 3 cable boxes installed initially I assume. When the tech comes I can have him replace it with a two way as we no longer have one of the boxes. The house is a ranch so the line comes from underground right up to the box on the side of the house. No obvious signs of corrosion that I can see.

Expert

Re: Help reading signal levels

If the 3 way's marked -3.5 -7 -7 , put the line going to the 2way modem splitter on the -3.5 port, I'll bet it's on a -7 port. I'd also disconnect the line going to the unused jack and put a 75 ohm terminating resistor on it.   this will improve the data modem by +3.5 dB

 

 If the 3 way is a -5 -5 -5 , will need to be changed to a 2 way or a 2nd line run to the modem.

 What really should be done is to install a second line to where the 2 way is, remove the 2 way put a -7 port on the phone modem and the -3.5 port on the data modem.

 This will improve the data modem by +7 dB

 

 Or, simply remove the 2 way splitter and move the phone modem to where the removed cable box was and be sure the data modem is on the -3.5 port...

 Print this out for the tech...

 You may still have an outside line issue....

 

Spectator

Re: Help reading signal levels


@MsRaye wrote:

If the 3 way's marked -3.5 -7 -7 , put the line going to the 2way modem splitter on the -3.5 port, I'll bet it's on a -7 port. I'd also disconnect the line going to the unused jack and put a 75 ohm terminating resistor on it.   this will improve the data modem by +3.5 dB

 

 If the 3 way is a -5 -5 -5 , will need to be changed to a 2 way or a 2nd line run to the modem.

 What really should be done is to install a second line to where the 2 way is, remove the 2 way put a -7 port on the phone modem and the -3.5 port on the data modem.

 This will improve the data modem by +7 dB

 

 Or, simply remove the 2 way splitter and move the phone modem to where the removed cable box was and be sure the data modem is on the -3.5 port...

 Print this out for the tech...

 You may still have an outside line issue....

 


Again, thank you for the help in walking me through this...

 

It is in fact a -3.5 -7 -7 splitter. There are no obvious markings so I will have to use process of elimination to determine which line goes to which room.  I think until the tech gets here the thing to do is move the phone modem to  where the cable box used to be. 

 

I won't be able to get to it tonight, but I will post the signal levels after swapping around the wires tomorrow.

Spectator

Re: Help reading signal levels

OK, so the modem was in fact already connected to the -3.5 port. I did move the phone modem to the empy coax and removed the splliter so the modem is connected directly to the coax.

 

For reference, here are signal levels from before I moved anything -- I'm posting because of the errors on 549 mHz. Also, i check all the coax cable and it does appear to all be r6.

 

Finally, I noticed that the phone modem was still broadcasting a wifi signal, so I found this link on how to shut it off. However, after ticking the boxes on the first page I was unable to access the wireless setting again so not able to turn off the DHCP server and place into bridge mode. It is still carrying the phone signal and the wifi is off however.

 

Before restart:

 

Startup Procedure
ProcedureStatusComment
Acquire Downstream Channel501000000 HzLocked
Connectivity StateOKOperational
Boot StateOKOperational
SecurityEnableBPI+
IP Provisioning ModeHonor MDDIPv6 only
 
<tabindex=-1>Downstream Bonded Channels
ChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectablesUncorrectables
1LockedQAM2567501000000 Hz-7.4 dBmV39.8 dB304167
2LockedQAM2562471000000 Hz-7.0 dBmV39.9 dB14593
3LockedQAM2563477000000 Hz-6.9 dBmV40.1 dB30331
4LockedQAM2564483000000 Hz-6.9 dBmV40.1 dB1910
5LockedQAM2565489000000 Hz-7.2 dBmV40.0 dB33136
6LockedQAM2566495000000 Hz-7.1 dBmV40.0 dB402314
7LockedQAM2561465000000 Hz-6.8 dBmV40.0 dB15230
8LockedQAM2568507000000 Hz-7.6 dBmV39.3 dB578561
9LockedQAM2569513000000 Hz-7.7 dBmV39.6 dB513405
10LockedQAM25610519000000 Hz-7.9 dBmV39.4 dB475141
11LockedQAM25611525000000 Hz-8.0 dBmV39.4 dB25913
12LockedQAM25612531000000 Hz-8.3 dBmV39.3 dB3843
13LockedQAM25613537000000 Hz-8.2 dBmV39.3 dB333190
14LockedQAM25614543000000 Hz-8.3 dBmV39.2 dB262138
15LockedQAM25615549000000 Hz-8.1 dBmV39.3 dB47733562400851
16LockedQAM25616555000000 Hz-8.4 dBmV39.0 dB13811
17LockedQAM25617561000000 Hz-9.0 dBmV39.0 dB242190
18LockedQAM25618567000000 Hz-9.0 dBmV39.0 dB1860
19LockedQAM25619573000000 Hz-9.5 dBmV38.6 dB1540
20LockedQAM25620579000000 Hz-9.8 dBmV38.2 dB1500
21LockedQAM25621585000000 Hz-9.9 dBmV38.2 dB2080
22LockedQAM25622591000000 Hz-10.3 dBmV37.5 dB18045
23LockedQAM25623597000000 Hz-10.4 dBmV37.5 dB351546
24LockedQAM25624603000000 Hz-10.5 dBmV37.3 dB414852
 
<tabindex=-1>Upstream Bonded Channels
ChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower
1LockedATDMA25120 Ksym/sec23900000 Hz41.5 dBmV
2LockedTDMA12560 Ksym/sec19000000 Hz40.8 dBmV
3LockedATDMA35120 Ksym/sec30400000 Hz43.8 dBmV
4LockedATDMA45120 Ksym/sec36900000 Hz45.3 dBmV
 
Current System Time: Thu Jul 27 20:31:30 2017 

 

After restart

 

Startup Procedure
ProcedureStatusComment
Acquire Downstream Channel603000000 HzLocked
Connectivity StateOKOperational
Boot StateOKOperational
SecurityEnableBPI+
IP Provisioning ModeHonor MDDIPv6 only
 
<tabindex=-1>Downstream Bonded Channels
ChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectablesUncorrectables
1LockedQAM25624603000000 Hz-5.8 dBmV38.1 dB304167
2LockedQAM2562471000000 Hz-3.3 dBmV39.9 dB14593
3LockedQAM2563477000000 Hz-3.0 dBmV40.1 dB30331
4LockedQAM2564483000000 Hz-2.9 dBmV40.1 dB1910
5LockedQAM2565489000000 Hz-3.0 dBmV40.1 dB33136
6LockedQAM2566495000000 Hz-2.9 dBmV40.2 dB402314
7LockedQAM2567501000000 Hz-3.0 dBmV40.0 dB15230
8LockedQAM2568507000000 Hz-3.0 dBmV39.6 dB578561
9LockedQAM2569513000000 Hz-3.2 dBmV40.0 dB514405
10LockedQAM25610519000000 Hz-3.6 dBmV39.7 dB475141
11LockedQAM25611525000000 Hz-3.8 dBmV39.7 dB26113
12LockedQAM25612531000000 Hz-4.4 dBmV39.4 dB3863
13LockedQAM25613537000000 Hz-4.6 dBmV39.3 dB333190
14LockedQAM25614543000000 Hz-4.8 dBmV39.1 dB263138
15LockedQAM25615549000000 Hz-4.6 dBmV39.3 dB47733562400851
16LockedQAM25616555000000 Hz-4.8 dBmV39.0 dB13811
17LockedQAM25617561000000 Hz-5.2 dBmV39.4 dB242190
18LockedQAM25618567000000 Hz-5.1 dBmV39.4 dB1860
19LockedQAM25619573000000 Hz-5.2 dBmV39.0 dB1540
20LockedQAM25620579000000 Hz-5.4 dBmV39.0 dB1500
21LockedQAM25621585000000 Hz-5.3 dBmV38.9 dB2080
22LockedQAM25622591000000 Hz-5.6 dBmV38.6 dB18045
23LockedQAM25623597000000 Hz-5.7 dBmV38.5 dB351546
24LockedQAM2561465000000 Hz-3.8 dBmV40.8 dB414852
 
<tabindex=-1>Upstream Bonded Channels
ChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower
1LockedATDMA25120 Ksym/sec23900000 Hz37.5 dBmV
2LockedTDMA12560 Ksym/sec19000000 Hz35.8 dBmV
3LockedATDMA35120 Ksym/sec30400000 Hz38.8 dBmV
4LockedATDMA45120 Ksym/sec36900000 Hz40.5 dBmV
 

Current System Time: Fri Jul 28 05:49:00 2017 

 

signal levels look much better but still ingress on 549 mHz?