Network socket loop?

Hi guys

I work for a company that does office rental.

one of the office is quite huge, they rent our internet. So one socket is like on internet connected to our switch via patch panel say number 1. This is connected to a router. that gives DHCP to clients within the office. A cable is also plugged into socket number 2 from the router

The other side of room there is few desktops and printers. So they have a switch all those devices plugged in. then from switch a cable is plugged to wall socket say number 5. from the patch panel socket 5 is connected to socket 2 so creates a loop? (not sure correct terminology. This gives al net access

they had to move offices. So i replicated all above in another office. But it wouldn't work. All i did was swapped the wall socket numbers, kept the cable plugged into switch so they get correct IP address. If the old office patch panl say was 6 and new one was 9 i just unplugged 6 to 9

But with the the router side works. The loop side of things just wouldn't work. I  was not able to get the router to talk to switch via the socket loop

Do i need to configure the sockets or have specific cable for this loop facility? Router and switch works ok as when i plugged them directly it works ok

Any ideas?
Sundeep VAsked:
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gheistConnect With a Mentor Commented:
No, same as rest of cable is fine.
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gheistCommented:
Spanning Tree protocol should be available on switch at least, so loops dont make huge packet storm.
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Sundeep VAuthor Commented:
Hi

there is not  a loop as such. we have a cable that needs plugging one say one patch panel to another patch panel to bring one socket live.

do i need a specific cable for this?
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Sundeep VAuthor Commented:
thank you all for your help, it has started working now, didnt work first time
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