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Can damaged cable cause modem problems.

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Message 1 of 9
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We just got home after a 2-week vacation. I had turned off and unplugged the computer and modem.

 

I powered up the computer and modem (Motorola Surfboard 4220). The modem keeps recycling, no matter what I tried (power off, reboot computer, etc.).  I had connectivity for about 5 minutes at one point, but then my connection was gone again.

 

I know the modem is near end of life, but it was working fine before we left.

 

 Our TV cable is working just fine.

 

After browsing this forum I read about damaged coax and remembered I planted some bushes next to the house a few weeks ago and cut the insulation slightly on a coax cable.

 

Could that be it?  It's been raining a lot recently -- could that make it worse if there's a damaged cable?

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Posted by
Connection Expert

Message 2 of 9
785 Views

If you cut the line some it may show in the signals

please post signals from modem click this link




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Posted by
Connection Expert

Message 3 of 9
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msstress wrote:

I know the modem is near end of life, but it was working fine before we left.

 


FWIW, whatever else is going on, that modem *WAS* "end of life" on 1/11. Consider swapping it for one that is more current especially if you are renting it from them.




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Posted by
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Message 4 of 9
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Turns out my old modem was  Motorola Surfboard 4200, EOL in 2008. So I bought a new Motorola SB5101U  at Best Buy, registered it, and I have an internet connection now. 

 

I also removed an un-needed splitter from my cable connection.

 

I did an Internet speed test, and upload was only .78 MB/sec.  Download was much faster.

 

Where do I find out what Internet service and speed I have for my Comcast account?  I looked online in My Account, but couldn't find it.

 

Also, I want to say that in the three times I called Comcast support, I was treated courteously and efficiently.

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Message 5 of 9
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Found my service -- I have Performance with Power Boost.

 

Do I need a different modem for this?  I only have Docsis 2.0 with the new modem.  Would I benefit from a DOCSIS 3.0 modem?

Posted by
Connection Expert

Message 6 of 9
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msstress wrote:

Found my service -- I have Performance with Power Boost.

 

Do I need a different modem for this?  I only have Docsis 2.0 with the new modem.  Would I benefit from a DOCSIS 3.0 modem?


You are OK for now

Performance service is just a docsis 2 service right now.

You can buy a docsis 3 modem just to be ready for when all service will be version 3.

 


 




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Posted by
Connection Expert

Message 7 of 9
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msstress wrote:
Turns out my old modem was  Motorola Surfboard 4200, EOL in 2008.efficiently.

Not that it matters anyway because they are both EOL but in your first post you wrote SB4220 that is why I quoted that date.




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Posted by
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Message 8 of 9
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Do you have any idea when all service will be DOCSIS 3.0?

Posted by
Connection Expert

Message 9 of 9
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msstress wrote:

Do you have any idea when all service will be DOCSIS 3.0?


No

they first have to stop selling version 2 modem and give everyone a few year to swap them out




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