Internet slows down with longer cables?

au
17

I have laid a second internet cable, which leads to my new desktop PC. Before that, I had only connected a single cable to my laptop. Now, when I did a speed test on the Internet, I found that I only had 60 Mbps with the new cable, but I had 100 Mbps on my laptop. For both systems I use the same cables from the same brand, but the "slower" cable is 10 meters long, the "faster" cable 5 meters long. How could you explain this problem?

What also needs to be mentioned is that I ran the longer cable through the skirting board, where the cable is likely to be quite pressed. Can that be a reason?

Hy

The ONLY reason is that the cable is broken.

Ad

Which cable? Any cheaper garbage?

It may be due to the fact that there's electricity somewhere next to the cable and the connection is disturbed, but it may also be due to the hardware in the PC. Or on a switch or something. This can have many reasons

Te

Usually not, unless you have any sources of interference nearby. LAN cables can be laid over 100 meters.

Ad

If it were broken, the error pattern would be different

Hy

No, not mandatory. Damaged wires can lead to a signal overlay, which leads to a reduction in the usable bandwidth.

Te

Depends on the cable. If it was one of the cheaper and maybe even extra flat that you can lay it behind skirting boards, then a good umbrella is probably missing.

All other cables usually run behind skirting boards or at the bottom of the wall. It may well be that it is disturbed. Just test the same cable in the middle of the room or buy one with a neat screen.

au

The internet cable is not the only cable that is routed through the skirting board. Also a power cable. That will probably be the reason, right?

au

It is quite possible that the cable will be disturbed. It is a flat cable. I still run a power cable in the skirting board. However, two thick cables do not fit in, otherwise there would be too little space. What should I do?

Te

Definitely sounds problematic. It can work, but in your case it doesn't seem to work. If no cable goes, you could of course still use the power cable for the transmission as an alternative. With 1000 D-Lan adapters, 400 - 600 Mbit should easily arrive. In the best case, you can even get straight to your router.

In

Take the cable out of the skirting board, away from the power cable and then measure again. Then you know if it is the power cable interference.

au

That's exactly what I did. And it's actually a glitch due to the power cord. Would the interference be less if I run the internet cable in a cable duct above the skirting board? What do you think?

au

Would the interference be less if I run the internet cable in a cable duct above the skirting board? What do you think?

Te

Maybe, you have to test that. In a cable duct, you also have the option of laying another, better cable. So already think it will work - but of course I can't see how it really is with you. Before you screw the channel on the wall, you can simply test it loosely.

au

Thank you, you really helped me. I taped the cable over the baseboard and I got 90 Mbps. Now I will only buy one cable channel and possibly soon a better LAN cable.

au

Thanks for nothing.

Te

With a higher quality cable you will also tickle out the 10 Mbps. Have fun with the better Lan.

In

No. A little plastic of the cable duct does not act as a shield.

You have to give the LAN cable a completely new way with as little overlap with power cables as possible. Or at least at a distance of 10cm parallel to the power cable. Since you can measure at any time, it is no problem to find a satisfactory solution.