connection not available with switch + AP

[gtsolid]

Hello to all
I currently have a functioning AP connected via Ethernet to its outlet.
I added one TL-SG105 also tested between the socket and the AP:

nothing works.
I also tried connecting a PC via ethernet but nothing.
It is known that the lights between the wall and the door switch is turned off, while the other is flashing orange light (the green one remains off).
is unmanaged, what can I try to do?

 

[Ralston18]

"It is known that the lights between the wall and the door switch is turned off, while the other is flashing orange light (the green one remains off)."

You may be turning off the power. The outlet you are using could be wired for a lamp controlled by the wall switch. Either one or both sockets.

Check the User Manual for what the lights indicate by color and mode (flashing/not flashing).

Run an extension cable from another outlet that is not on a switch. See if that makes a difference.

 

[Shaun o]

Where have you connected the Cable modem or router to the Tp link switch ?

If you plugged it into one of the four ports provided, and not the one labelled Wan.
It`s why you get no internet connection from the Tp link switch with the four lan ports on it.

The switch still has to do network translation and cannot do it if you connected the cable modem to any of the four provided Ethernet ports where it should go to the wan port of the switch.

read the manual to see if the switch has a firmware setup and login where you can change the IP and sub net address ect.

Cable modem/ router - to Wan port of switch.
Client machines or wireless extender, repeater 1 to 4 Ethernet, Lan ports of switch.

 

[gtsolid]

orange light: 100mbps connection; green light: 1Gbps connection.
Flashing means Transmitting/receiving data. port 1 (from wall plug), is completely switched off.
i receive the primary signal not from a router, but from my in-wall LAN cables (starting from the main business switch). so there is no WAN cable, only LAN.

 

[Ralston18]

Try another, known working ethernet cable between the 5 port switch and the ethernet wall plug.

Try another wired device, e.g. a laptop to directly test if the if the ethernet wall plug is working.

Per Shaun o's suggestion you need to go back to other end of that wall jack plug: there is a router there and it must have a ethernet cable connection going from one of its' LAN ports to the patch panel port serving the wall plug where you connected the switch. Look for a number on the ethernet wall plug port. Should be numbered to match the proper port on patch panel.

Could be that that wire path (patch panel to wall plug) has a bad connection on one end or the other. Or the cable in between may have been cut or damaged. You might need to get a knowledgeable person to check inside the ethernet wall plug port. A wire may have come loose inside. If no problems are found inside the wall plug port someone will then need to test wire coming into the ethernet wall plug port.

 

[gtsolid]

i linked the switch to another wall port and the green light was on:

i came back to the original port in the other room but nothing:

in this room, if i link the port to my AP, everything works:

 

[Ralston18]

Very good. Seems that you have narrowed the problem down to the original wall port. Simply the port is not working trusting that I have correctly followed your troubleshooting. Thanks for the photographs. Really helps.

Three possible causes:

1) The ethernet wire inside the wall servicing the original wall port is not properly terminated in the wall port's plug/keystone.

2) The ethernet wire inside the wall is damaged somewhere: broken, punched with a nail or staple, chewed by rodents, kinked, etc..... Or perhaps low quality and does not meet the required specifications. Do you know if the wall outlet ever worked? Hopefully that answer is "yes".

3) The ethernet wire inside the wall is not properly connected on the other end: not properly terminated at the patch panel. Or maybe a bad ethenet cable connector or cable between the router and patch panel. (Or there could be a another wall port there with multiple plug in ports. One port for each room wall plug being served.)

Do you know how to and are you comfortable with opening the original wall port up? There are (should be) eight wires pressed firmly in between little metal teeth. Must be fully and securely in place. The same is true at the patch panel where the other end of the inside wall ethernet wire is connected. Those connections can and do come loose especially if not done properly the first time. (And even when properly terminated they can eventually wiggle loose...)

Do a Google search on "How to punch in ethernet wires". Not so much that you will have to do all that - just to get an understanding of your physical network's wiring and wall plug connections. (Also known as the infrastructure; what you can expect to see. Can vary a great deal so do not let that confuse you. Draw a sketch of your network as best you can. That will help you understand the bigger picture.

The objective is to continue to narrow down the problem point and identify the appropriate fix.