Ethernet cable problem, why is there no access to the network?

Question

Computer networks

They asked to extend the network cable (about 10 meters). I crimped a new cable (about 30 meters), checked everything works on my PC. Brought it to the place and connected it, the indicator on the board lit up windows gave a message about connecting to the network. The browser writes that there is no access. Ping goes to the switch. Plugged in the old cable and it works. I still don't understand what the problem is. If you have any advice please let me know

Answer 1

An absolutely similar situation: at home, during the repair, I laid an Ethernet cable in the kitchen (sockets at the ends, the cable is hidden under the floor). The cable is connected to the apartment LAN and is used to check and adjust other people's computers.
At some point, a one-on-one situation arose like yours - there is a network on someone else's computer, there is no Internet. First sinned on the computer. Then I called - everything and everywhere is OK. I connected my laptop there - the same situation, there is a network - there is no Internet.
Where is the problem, I did not understand. Most likely, somewhere a bad contact in some kind of outlet.
The situation is saved by disconnecting and connecting the wire from the switch. After that, the Internet immediately appears.

Answer 2

If one cable works and the other doesn't, the problem is with the cable. Maybe they pressed it badly, while it was reported - it broke.
Maybe the connection speed at home is less, only 4 wires are used and not 8, but on the new one together it tries to use all 8.
Try to reroll.
PS Suddenly, the cable lies near the high-voltage shield so close that interference interferes?

Answer 3

if there is a ping, then it's not the cable, make those tracer to the Internet and everything will become clear.

Answer 4

I still don't understand what the problem is. If you have any advice please let me know

Check the mode of the interface, in particular duplex.

Answer 5

1) ping 8.8.8.8 tracert 8.8.8.8
2) View the tcp\ip settings in the connection properties, reboot the interface
3) Look on the hardware if the ip address is blacklisted
4) It is unlikely, but there is an error in the poppy address. Device manager - network adapter - properties - optional - network address - value AAAAAAAAAAAA

Answer 6

Twisted pair has its maximum length, at which the signal is well supplied and it is no more than 100 meters. It
was 10 meters + X meters, now it is 30 + X meters
suppose that X > 70 then everything is clear
Put a repeater or a switch near the outlet.