Very helpful video! We been having intermittent issues and I checked the coax to find some potential bends in the coax. And what do you know, I actually found some. So, I went ahead bent them back to shape just to try. Checked the speed test and it went from 20-50mbit to 200+, which is our max speed. The coax wasnt too bent, but it was just enough to cause the intermittent and disconnection issues. The bent coax were most likely cause by being crush by moving furniture. Real life saver this video because our repair schedule is not due till Jan 10! I'll have the tech replace the coax! Thanks again and subbed!
For folks watching this, if you make a connector, please make sure there is no braiding wrapped around the center conductor when you go to compress the fitting.
Hello, I have multiple coax cables in different rooms and im confused while the one in my living room works, while the one in my room doesn't please help.
Hi Brady, really enjoy your videos although most of the information shared outside of 'The Subscriber Side' is way over my head. I'm troubleshooting our Netgear CM2000 cable modem connected to Comcast internet and TV service. I upgraded the modem a few days ago (upgraded from the CM1000, both of which I own). My wife works from home and has been experiencing Zoom call drops and I've been frantically trying to troubleshoot. Speedtest results are great 875 down, 23 up. For the first 2 days with the CM2000 I noticed the downstream light blinking white indicating that the modem is searching for a downstream channel. I removed the 1 to 2 splitter in my network closet and connected directly to the modem and now the downstream is locked and my wife is happy.....but at the expense of our single cable tv box! I considering adding an upstream/downstream amplifier but I don't know which one to purchase and I don't want to damage my modem or interfere with my neighbors signals. How do I proceed? I can share cable modem connection data/dbmv levels if that would help. Thanks in advance!
Hi POSTMILLDR sorry to hear you are having problems. If your drop comes into a two-way splitter with one cable to your modem and the other to your set top box, then I don't believe that the drop amp will solve your problem. There are likely one of two issues going on: 1) you have too low of RF signal coming from the provider, which is why when you remove the splitter you gain back 3-4 dB of signal and your modem is able to lock or 2) the cable going to your set top box is back feeding bad signals (micro-reflections) causing your modem to drop offline. Login to your modem and check its downstream signal levels to determine which of the above two issues it maybe. You want -10 to +10 dBmV at the input of your modem for receive level.
@@Volpefirm Thanks Brady! Downstream signal levels range from +.8 to +3.9dbmv on 32 downstream bonded channels. 4 upstream bonded channels range from 43 to 44.8 dbmv. I actually sent the Netgear modem back after a Sr. Comcast tech came out and suggested I try a different modem. I'm now using a Motorola MB8611. At first it seemed very stable (and the Downstream and Upstream lights are solid now!)and then the drops started occurring randomly again. I'm glad to call the Comcast tech back out, but it seems that he was very confident that the Comcast signals were perfect and the problem must be on my side.....even suggesting it could be the router. Maybe the problem is on my side......I just need help trying to troubleshoot. The modem event log shows a bunch of Event type code 16 and 24 on channel ID 33 and they are categorized as Notice (6). The Critical (3) Events are: SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing; No Ranging Response received - T3 time-out; Started Unicast Maintenance Ranging - No Response received - T3 time-out; Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out. I'm assuming the Event codes 16 and 24 are related to one of the Downstream Bonded Channels (OFDM PLC, ID 33) which has a high number of 'Corrected' and a currently low number of Uncorrected (133). In fact it's the only Downstream with any Uncorrected. I will remove the cable from the back of the cable box to see if that solves the problem. Kids are not going to be happy with me! Sorry to throw all this at you. My wife is at her wits end.....
Doesn't swapping the modem also change the Public IP address? I am pretty sure this is true because IP is assigned to MAC address, right? We technicians sometimes find nothing wrong with the connection or history but after swapping out the modem it solves all the customers problems. I have been wondering about this when it comes to people's work VPNs and wonder if it some IP addresses have a bad history/implementation on the CMTS. But then we have the reverse polarity EN2251s.... so it's hard to say if this is a possibility or it's just faulty equipment. Also I noticed that the 3.1 modems also have a habit of never recovering their SNR unless you swap them. This is usually occurs when there was a RF impairment that has been fixed but the modem just reads a SNR of 35-38 when it should be at 40-42 on our plant.
I really hope you answer this, I've been having this issue for months now, can a pinch or something like that in a coax cable cause all my devices to lose wifi connection for about a min? (Happens 2 times per day, every 12 hours) Other than that, the speed is great, just when the clock hits around 8 AM, and around 8 PM. I even got a new router and the problem still persists.
Since it occurs in the morning and night its likely a noisy light or something similar turning on and disrupting the signal. The noise is most likely getting in around your drop or inside your house. If not there, then let your cable operator know about the issue and especially the time of the issue. This is very helpful trouble shooting info for them.
@itsvideos thanks for watching and for the question. Over the top TV, or OTT TV, is content that can be accessed with high-speed Internet connection instead of a cable TV or satellite TV subscription. OTT TV services include Netflix, Hulu, Amazon Prime etc.... Hope this helps
Hi Sillgordy, as soon as I finish up a tutorial series I'm doing I'll do as you suggest and put together some videos on fixing coax, splicing coax, crimping connectors, etc. I owe this to some other follower as well. Just need a couple more weeks to wrap up this series and I'll be on it.
I'm a technician for a isp and this information is 100% accurate, I wish alot of technicians knew this stuff. Thanks for the video
Glad it was helpful!
Very helpful video! We been having intermittent issues and I checked the coax to find some potential bends in the coax. And what do you know, I actually found some. So, I went ahead bent them back to shape just to try. Checked the speed test and it went from 20-50mbit to 200+, which is our max speed. The coax wasnt too bent, but it was just enough to cause the intermittent and disconnection issues. The bent coax were most likely cause by being crush by moving furniture.
Real life saver this video because our repair schedule is not due till Jan 10! I'll have the tech replace the coax!
Thanks again and subbed!
Awesome. Love to hear these stories 👍
Wow, cleaned up my cabling and now I'm getting everything out of it. Thank you!!!
Great to hear. Thanks for watching
Highly informative. Great video. Great job. Thanks.
Thank you
For folks watching this, if you make a connector, please make sure there is no braiding wrapped around the center conductor when you go to compress the fitting.
Yup, instant Death!!
Hello, I have multiple coax cables in different rooms and im confused while the one in my living room works, while the one in my room doesn't please help.
Great info here! Thanks for sharing. 👍
Thanks for watching! Appreciate the comments too.
Hi Brady, really enjoy your videos although most of the information shared outside of 'The Subscriber Side' is way over my head. I'm troubleshooting our Netgear CM2000 cable modem connected to Comcast internet and TV service. I upgraded the modem a few days ago (upgraded from the CM1000, both of which I own). My wife works from home and has been experiencing Zoom call drops and I've been frantically trying to troubleshoot. Speedtest results are great 875 down, 23 up. For the first 2 days with the CM2000 I noticed the downstream light blinking white indicating that the modem is searching for a downstream channel. I removed the 1 to 2 splitter in my network closet and connected directly to the modem and now the downstream is locked and my wife is happy.....but at the expense of our single cable tv box! I considering adding an upstream/downstream amplifier but I don't know which one to purchase and I don't want to damage my modem or interfere with my neighbors signals. How do I proceed? I can share cable modem connection data/dbmv levels if that would help. Thanks in advance!
Hi POSTMILLDR sorry to hear you are having problems. If your drop comes into a two-way splitter with one cable to your modem and the other to your set top box, then I don't believe that the drop amp will solve your problem. There are likely one of two issues going on: 1) you have too low of RF signal coming from the provider, which is why when you remove the splitter you gain back 3-4 dB of signal and your modem is able to lock or 2) the cable going to your set top box is back feeding bad signals (micro-reflections) causing your modem to drop offline. Login to your modem and check its downstream signal levels to determine which of the above two issues it maybe. You want -10 to +10 dBmV at the input of your modem for receive level.
@@Volpefirm Thanks Brady! Downstream signal levels range from +.8 to +3.9dbmv on 32 downstream bonded channels. 4 upstream bonded channels range from 43 to 44.8 dbmv. I actually sent the Netgear modem back after a Sr. Comcast tech came out and suggested I try a different modem. I'm now using a Motorola MB8611. At first it seemed very stable (and the Downstream and Upstream lights are solid now!)and then the drops started occurring randomly again. I'm glad to call the Comcast tech back out, but it seems that he was very confident that the Comcast signals were perfect and the problem must be on my side.....even suggesting it could be the router. Maybe the problem is on my side......I just need help trying to troubleshoot. The modem event log shows a bunch of Event type code 16 and 24 on channel ID 33 and they are categorized as Notice (6). The Critical (3) Events are: SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing; No Ranging Response received - T3 time-out; Started Unicast Maintenance Ranging - No Response received - T3 time-out; Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out. I'm assuming the Event codes 16 and 24 are related to one of the Downstream Bonded Channels (OFDM PLC, ID 33) which has a high number of 'Corrected' and a currently low number of Uncorrected (133). In fact it's the only Downstream with any Uncorrected. I will remove the cable from the back of the cable box to see if that solves the problem. Kids are not going to be happy with me! Sorry to throw all this at you. My wife is at her wits end.....
do you have a start to finish install vid?
Not yet. But coming soon.
Doesn't swapping the modem also change the Public IP address? I am pretty sure this is true because IP is assigned to MAC address, right?
We technicians sometimes find nothing wrong with the connection or history but after swapping out the modem it solves all the customers problems. I have been wondering about this when it comes to people's work VPNs and wonder if it some IP addresses have a bad history/implementation on the CMTS. But then we have the reverse polarity EN2251s.... so it's hard to say if this is a possibility or it's just faulty equipment.
Also I noticed that the 3.1 modems also have a habit of never recovering their SNR unless you swap them. This is usually occurs when there was a RF impairment that has been fixed but the modem just reads a SNR of 35-38 when it should be at 40-42 on our plant.
If your modem is not statically provisioned, definitely yes
I really hope you answer this, I've been having this issue for months now, can a pinch or something like that in a coax cable cause all my devices to lose wifi connection for about a min? (Happens 2 times per day, every 12 hours) Other than that, the speed is great, just when the clock hits around 8 AM, and around 8 PM. I even got a new router and the problem still persists.
Since it occurs in the morning and night its likely a noisy light or something similar turning on and disrupting the signal. The noise is most likely getting in around your drop or inside your house. If not there, then let your cable operator know about the issue and especially the time of the issue. This is very helpful trouble shooting info for them.
Thank you for the great information
Thanks for watching
Thank you! Now i know what to do since my internet is slow
Awesome. Glad to help.
my coaxial cable is damage which causes my router to not work. if I change my coaxial cable will that fix the issue?
Hi Jose, Definitely fix your coax cable. I can't promise it will fix your router, but a damaged coax cable is never good.
At 8:18 when you say "over the top TV", do you mean "over the air TV"?
@itsvideos thanks for watching and for the question. Over the top TV, or OTT TV, is content that can be accessed with high-speed Internet connection instead of a cable TV or satellite TV subscription. OTT TV services include Netflix, Hulu, Amazon Prime etc.... Hope this helps
@@Volpefirm Thanks.
LET ME TELL YOU COMCAST IS NOT GOING TO REPLACE YOUR DROP TO HOUSE !!!! AND THAT IS WHERE YOUR PROBLEM IS IF IT IS UNDERGROUND !!!!!
Was not helpful didnt tell me how to fix nothing
Hi Sillygordy, sorry this was not helpful. Let me know what you are trying to fix and I'll make a video for you.
@@Volpefirm how to actually fix a modem caox cable that got ripped out
Hi Sillgordy, as soon as I finish up a tutorial series I'm doing I'll do as you suggest and put together some videos on fixing coax, splicing coax, crimping connectors, etc. I owe this to some other follower as well. Just need a couple more weeks to wrap up this series and I'll be on it.