Cat6, switch, no internet

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rziel77

May 28, 2018
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Hi
Around 6 months ago I run approximately 250 feet of outdoor cat6 cable. It is in 1/2 inch conduit et least 12 inches deep. I use it to connect two buildings (security Ip cameras). It was working perfectly fine for 6 months, until yesterday, when I got “no internet” error. I checked connectivity and all wires passed.
Is there any other parameter I need to check or cable replacement is the only option. Please help!!!
 
Solution
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Unfortunately you will not likely want to spend the money it costs for a actual cable tester. Simple connectivity mostly works but it does not mean that you can pass data especially when the cables are getting close to the 100 meter limit on the cables.

I guess the good news is you used conduit rather than direct bury cable so if you need to replace it you do not have to do the hard work of digging.

Check both your switches and your pc's some have simple cable diagnostics. They can for example tell you how long a cable is even with nothing connected to the far end. It does not come close to a testing meter but a good meter can cost close to $1000.
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eibgrad

eibgrad

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Feb 16, 2010
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Frankly, there isn't enough detail here to provide good feedback.

I assume you're trying to reach these remote IP cameras over that connection, and they (and everything else between the two buildings) are on the same logical LAN. IOW, the connection is entirely local and has nothing to do w/ the internet. But then you claim "no internet". Sounds like a non sequitur.

Where are you getting your internet access? Is it local to your building? Is it over that connection and provided by a router on the other side? If it is, and the connection between the two building seems good, perhaps the issue lies between the switch on the other side and that router!

That's what I mean about not enough details. I have to guess and speculate about how all this is put together.
 
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bill001g

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Aug 9, 2012
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A simple test will be to plug a PC into the remote end. Best if the pc has lights on its ethernet port. I assume the local end is plugged into a router or switch. Your first test is to see if you get connectivity. Even if you get no internet or ip addresses the actual ethernet port should negotiate to gigabit or 100mbit depending on the ports on your equipment. I forget the exact menu but you can see the connect speed on the ethernet ....this is why lights are nice.

Protected cable seldom goes bad. It is almost always the ends that get slightly loose somehow. Now if you are using that crap CCA (copper clad aluminum) cable it is very common for the end to come loose over time. The cable also has major issues going long distances. That is why cca cable is not certified cable.
 
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rziel77

May 28, 2018
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Thanks. Lets Forget internet access problems.
On my property i have Two buildings that are connected by burtied cat6 Cable. Bulding A Is appr 250 ft away from building B and has four IP Cameras connected to the poe switch.
In bldg B i have a switch connecting cameras from bldg a and b to NVR. Right now the switch in bldg b doesnt receive sięgnal from bldg A. I run continuity test on the cable and it passed. I also checked the switches In both buildings - they are ok. It looks the cable is a problem. The network worked well for 6 months. Is there any other test beside the continuity test I should run to check the cable?

 
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ElectrO_90

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Apr 17, 2007
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Are you using a proper Cat Cable Tester? Make sure the ends have not corroded.
As suggested, you should plug a PC or something in one end and see if it works.
Also, are you sure the device it is connected from, is still working? Have you tried different ports? Have you tried to plug a computer into the port with the Cat6, and proved it is working?
 
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rziel77

May 28, 2018
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rziel77

May 28, 2018
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Thanks. I have replaced the old RJ45 connectors on both sides. All devices connected to both switches are working ok. When connecting Pc it doesn’t detect the signal from the switch...
 
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bill001g

Titan
Aug 9, 2012
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125,640
Unfortunately you will not likely want to spend the money it costs for a actual cable tester. Simple connectivity mostly works but it does not mean that you can pass data especially when the cables are getting close to the 100 meter limit on the cables.

I guess the good news is you used conduit rather than direct bury cable so if you need to replace it you do not have to do the hard work of digging.

Check both your switches and your pc's some have simple cable diagnostics. They can for example tell you how long a cable is even with nothing connected to the far end. It does not come close to a testing meter but a good meter can cost close to $1000.
 
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Solution
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ElectrO_90

Splendid
Apr 17, 2007
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451
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But you can buy meters that can test way way cheaper than, under $100. That's like saying you can buy a decent car at $100,000 and everything below it, is trash, which simply isn't true.

All he needs to test now, is that the switch he is connecting the cameras to, at the main house, is putting out a signal, that he can use his computer on.
 
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