Internet speed

[Billco]

Hey folks. I’m a newbie here so please advise if I’m in the wrong place for this issue. Thanks.
I have internet speed of 250 gbps coming into my house. It enters the companies (Astound Broadband) modem and I have cat5e cable going from the modem to an eero pro router (eero refers to this as the gateway router). I then send the signal from the ”gateway” to a gigabit switch. From there, I have probably 75 feet of cat6 cable going through the walls of my house to my living room where it terminates at a wall ethernet type plug. From that plug, I have cat5e cable going to another gigabit switch which among other devices, feeds my second eero router (extender), again using cat5e cable.
The issue: while I get a strong internet speed of 250+ when near the “gateway“ router in my office, out in the living room, the bandwidth drops by more than 60% to a consistent 93-96 gbps.
I have checked all the cables to make sure there are no standard cat5’s in the mix so I can’t understand what I may be missing.
Any thoughts on this would be helpful. Regards.

 

[sswilson]

250 gbps or 250 mbps?

And this is all wired as opposed to wireless?

Assuming it's mbps, I'm always suspect when the connection drops down to 100mb(ish) speeds. That suggests that there's a 100mb NIC/Switch somewhere in the mix.

 

[JD]

Might even be a bad cable if all switches are actually gigabit, could also be a poorly terminated wall jack too. 1Gbps needs all 4 pairs in the cable, whereas 100Mbps only needs 2.

 

[CMetaphor]

My suggestion is also also to check your cables, especially if you made them yourself. Untwisting too much or too much on one pair compared to another can cause cross talk and other issues. You may also want to invest in a new cable tester but they're around 100 or so for one that can check everything.

 

[Billco]

250 gbps or 250 mbps?

And this is all wired as opposed to wireless?

Assuming it's mbps, I'm always suspect when the connection drops down to 100mb(ish) speeds. That suggests that there's a 100mb NIC/Switch somewhere in the mix.

Yes, I did mean 250 mbps.
There are two switches involved. They both are labeled 1 gigabit. I did not create any of the wires myself. They are all factory built wires marked
“cat 6” or “cat5e”. The plugin in my living room was installed some years ago and perhaps could be the source of the drop off but I don’t really know how to tell if that is the problem.

 

[gingerbee]

have you tried another connection on the switch to see if it's all the same? or are you using old network connections in the PC. IE are 100mbps on the pc or other devices that maybe limited to 100mbps

 

[Billco]

Thanks for your response “gingerbee”. It doesn’t seem to matter which port on the switch is used. Not sure what you mean when you refer to “using old network connections in the PC”.

 

[moocow]

So you are saying your devices are connected to each other using network cables inside the wall? Anyway, I would plug 1 computer directly to the incoming modem and see if you can see the connection as 1GB / 1000 mb. Your speed will not hit that speed since the incoming speed is only 250mbps but the port should detect which speed it can support up to.

 

[Billco]

So you are saying your devices are connected to each other using network cables inside the wall? Anyway, I would plug 1 computer directly to the incoming modem and see if you can see the connection as 1GB / 1000 mb. Your speed will not hit that speed since the incoming speed is only 250mbps but the port should detect which speed it can support up to.

Thanks moocow. I would like to pursue your suggestion. Could you clarify something.
I have attached a map of the crime scene.
At the moment, I’m actually getting speeds of 450 mbps when speed tested on the Mac computer (I only purchase 250???). I also get similar speeds on my IOS devices when in that room receiving the signal over the air. When I take the IOS devices out next to the secondary router, the speed drops to at or very near 100 mbps.
Based on this schematic, could you please clarify your suggestion to me.
Thanks!

 

[gingerbee]

what I am asking is have you confirmed that the devices in question are capable of getting higher than 100mbps?

just wondering if these are older devices and that there max capable speeds