Auto split network bandwidth

[athlonoc]

I have a TP link 8 port ethernet switch which has 5 ethernet cables plugged in.
My broadband connects at 500mb and the switch appears to share the bandwidth evenly.
If I unplug 4 of the cable the one connected gets 500mb. But as I plug in additional cables the bandwidth appears to be split evenly.

Is there a switch that just gives the ethernet cable with a device using bandwidth the maximum until another one comes on line to use some bandwidth.

Scenario:
5 rooms each with a wall plate for an ethernet cable. All connected to the TP link 1gbps switch.
My office will get the full bandwidth if it's the only cable plugged into the switch.
Is there a switch that can have all 5 cables plugged in but provide the maximum bandwidth available when devices are connected.

The other 4 cables connect to other rooms that connect to TV's. If I'm not using any devices in those other 4 rooms I'd like the office to use the maximum available. Currently it just splits the 500mb automatically between all 5 room.

Lee

 

[athlonoc]

That...is weird. And shouldn't happen. What happens if you only plug in two devices? 250Mbps each?

Yes, that's exactly what happens.

 

[athlonoc]

Are you sure that the behaviour you're describing is happening? You're definitely plugging into TVs, not devices that start torrenting or running speed tests or anything like that?

Yes, just tv's.
Obviously on occasions some low usage wifi from a phone or connected devices of the main router. But they are not using much at all.

 

[athlonoc]

Are you sure that the behaviour you're describing is happening? You're definitely plugging into TVs, not devices that start torrenting or running speed tests or anything like that?

No torrenting or streaming.
At the point of testing I just have usual extremely low level bandwidth devices that are not taking up bandwidth.

 

[athlonoc]

if you could give the tplink model number or some photos of it we might be able to advise further

It's the TL-SG1008D

 

[athlonoc]

You can look at a switch in the same way as you would look at a mains extension lead.

Anything plugged in can take as much power as it wants, however, you can't exceed the total power of 13A. The switch works the same way. Anything plugged in gets as much download as it wants, BUT the total load on your internet can not exceed 500mbps.

Thanks and this is how i thought a switch should work. But it seems all have been evenly split as all five sockets from this switch only provide a 5th of the total going into the switch from the router.

 

[athlonoc]

What model router do you have

TP link
TL-SG1008D

 

[athlonoc]

Thanks and this is how i thought a switch should work. But it seems all have been evenly split as all five sockets from this switch only provide a 5th of the total going into the switch from the router.

Does this apply to all switches?
I think I'll buy a new one and see if it solves the problem.
Any recommendations?

 

[athlonoc]

That's your switch, what router is it plugged into

Sky router

Cable out of router provides 500mb
Cable out of switch provides 500mb
But when I plug in any more cables to the wall sockets from that switch any single one no longer reads 500mb with all the circumstances above the same.

 

[athlonoc]

Faulty cable, dodgy switch or ports, stuck in half duplex? Do have second free port on the router to check with the switch out of the picture?i

I've tried another port on my sky router to share the Internet to the switch. It doesn't make any difference.

 

[athlonoc]

What happens if you have one device plugged into the switch and then one device into the Sky router, how is the bandwidth split?

500mb is reported in either device when checked using ookla speed test

 

[athlonoc]

I might have found the issue. Maybe someone knows of this or can explain why.
Unplugged all cables from switch. Then plugged in laptop and speed of 500mb achieved.
Then the following rooms all with ethernet sockets in the walls were plugged in one at a time.
The four rooms that had ethernet cables from wall sockets all went into a sky box. Main room Sky Q, then 3 other rooms with sky mini boxes. If I plugged any one of those cables into the switch from connected to a sky device ( Not the actual TV ) then the speed on my laptop speed test dropped significantly. Even with just one sky box plugged in. Plugging in all of them resulted in a net speed from the laptop of no greater than 90mb. The PC is directly plugged into the switch via cable.
However if I plugged in all cables that lead to the wall sockets but don't connected the sockets to the sky boxes I do still get the 500mb.
So it seems the sky devices that are in standby and not on to view content ( no streaming or viewing etc ) they have a severe speed impact on any other device connected via ethernet.
If I connect the sky boxes via wifi ( not the preferred option ), this doesn't impact the speed at the laptop.

How can a connected sky box in standby mode, reduce the speed output at a wall socket for any other device. I understand if they are on and streaming content and taking up bandwidth. But in this instance they are not.
I have also connected one of the wall outlets to a TV using an ethernet cable and it doesn't impact bandwidth like the sky boxes do.

For confirmation the ethernet socket that connects to a wall outlet for the office and has a device connected to it doesn't cause the same issue that the sky boxes do.

Any thoughts, even though the issue can be resolved by turning those into devices that only connect via wifi.

 

[athlonoc]

It's probably creating a network loop if you have Sky Q wireless boxes and are also plugging them in

Is it possible to resolve that? The wifi element was switched off on the sky boxes as they are connected via ethernet, until now.

 

[athlonoc]

90 Mbps is near the max when it's syncing at 100Base-T. Maybe a faulty cable/connection is causing the switch to drop down to 100Base-T on all ports not just the one port with the faulty cable/connection. I'd confirm all wires in all cables on each end are connected in the right order and reterminate them incase they have come loose.

Thanks.
I'm going to get 2 or 3 pc's and connect them up at the different sockets all at the same time and if it does the same thing then I go with the faulty cable/connection. I've looked at the plugs and sockets and they are all T-568B

 

[athlonoc]

I'd suspect the cables. It could also be a faulty switch or it's power supply. Try power cycling it if you didn't already and a different power supply if you have one.

Just tried the TP Link SG108 and it did the same. I'll relook at all the cable and reconnect.