network long network cable

[guttmannen]

so today i installed a long network cable to my new room. first a 25 meter one, then a extender thing (ethernet ports at both sides) then another 10 meter cable and everything is in cat 6 but I only got 130/40 mbps and I am paying for 250/100. i tested with my laptop and a 1 meter cable from the router and i got 230/80 and im fine with that. does the connection get so bad from 35 meter (kinda 35 yards) away?i think its a bit strange that it losses so much. what should i do?

[Lurick]

Per the electrical spec, it is rated for 100m. Below that and you'll have no issues* and above that it's in most cases just not going to work or cause a ton of errors. Can you link the extender you have? Something akin to this?:

https://smile.amazon.com/Inline-Coupler-AVACON-Ethernet-Female/dp/B07DWPW5MJ

 

*Provided no large source of EM radiation are present, damaged wires, etc.

[Blue4130]

43 minutes ago, guttmannen said:

so today i installed a long network cable to my new room. first a 25 meter one, then a extender thing (ethernet ports at both sides) then another 10 meter cable and everything is in cat 6 but I only got 130/40 mbps and I am paying for 250/100. i tested with my laptop and a 1 meter cable from the router and i got 230/80 and im fine with that. does the connection get so bad from 35 meter (kinda 35 yards) away?i think its a bit strange that it losses so much. what should i do?

You say that you tested with your laptop, does that imply that the 130/40 result was with a different computer? Or was the laptop the only computer used, but with the cable changed? 

[Naterr]

Would very much rule out that coupler. That one in particular. Those are usually not that bad, but you've got something going on with the line. 

I would:

1. Test each cable with the same PC, and see if they both produce same speeds. You shouldn't see a major difference between them. Not 100+ meg difference like you did before.

2. I'd then test the coupler with a new pair of cables. 

Compare the two, and make your decision off of that.

 

Perfect world, you can run cat6 cables for up to 100m (~320ft). I would remove the coupler if, at all, possible.