Straight cable or cross over cable

crossover-cablerouter

I have pppoe internet connection. My ISP provides connections like this: 

ISP->media converter(fiber)->8 port switch(TP Link TL-SF1008D)->to individual internet connection account holders (like me)

Now the connection between the media converter and the switch is done using 4 pair cross over cat5 cable and I would like to connect the cable running from the switch to the router and through router to my PC. So what type of cable should I use to make the connection between the switch and the router (straight thru cable or cross over cable)?

The point I am trying to make is I am able to connect to the internet using straight through cable between the switch and my PC but when I connect the same cable between the switch and the router and from router to my PC I am not able to connect to the internet.

Also, if I am using the 2 pair cable (instead of 4) between the switch and the router I am able to connect to the internet but same is not true in case of 4 pair cat5 cable.

Best Answer

what type of cable should I use

All ports on the TP Link TL-SF1008D support Auto-MDIX, so you can use any straight-through or crossover 8P8C terminated (RJ45) Cat 5/5E/6 twisted-pair Ethernet cable.

if I am using the 2 pair cable (instead of 4) between the switch and the router I am able to connect to the internet but same is not true in case of 4 pair cat5 cable.

100Base-T only needs two pairs. Your 4-pair Cat5 cable is broken or incorrectly wired, test it with a suitable cable-tester.

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