Slow speed on powerline adapter?

Hi all

I have 100mb broadband speeds confirmed over wifi. With a netgear 1200 powerline from front room to upstairs backroom I'm only getting 70mb max. This is with cat6 ethernet cable to the computer. The adapters are in their own plug and no obvious signal interference devices nearby. Any ideas?

Thanks

15 Comments

Electric wiring may be the factor. Try to test speed by moving 2nd powerline adopter to nearby room. Better to turn off all other devices connected to router while testing.
I have TPLink 2000 powerline and they are forwarding 101MB on 100MB connection in off-peak time.
Edited by: "aaqeel" 11th May

What exactly do you mean by "getting 70mb max"? Mb is megabit and MB is megabyte.

If you're copying files in windows you'll get a speed in MB, and 70 would be fairly reasonable (last time I checked I was getting 82MB on my gigabit network) and would equate to 560Mb, but can be confusing with ISPs and speedtest websites referring to speeds in Mb.

If you mean you've gone to a speedtest website and it's rating your connection at 70Mb that would indeed by very low for a gigabit connection and I'd have thought you'd need some pretty hardcore interference to make it drop that low. The port that you plug the cable into usually has a light that signifies the speed you're connecting at, orange means you have a 100Mb connection and green means 1000Mb (or gigabit), have a look and make sure yours is green. If it isn't that would be your problem. I recently noticed mine was orange and replugging it at my superhub didn't help, but did at my PC.

Original Poster

bryanhaines399

What exactly do you mean by "getting 70mb max"? Mb is megabit and MB is … What exactly do you mean by "getting 70mb max"? Mb is megabit and MB is megabyte. If you're copying files in windows you'll get a speed in MB, and 70 would be fairly reasonable (last time I checked I was getting 82MB on my gigabit network) and would equate to 560Mb, but can be confusing with ISPs and speedtest websites referring to speeds in Mb. If you mean you've gone to a speedtest website and it's rating your connection at 70Mb that would indeed by very low for a gigabit connection and I'd have thought you'd need some pretty hardcore interference to make it drop that low. The port that you plug the cable into usually has a light that signifies the speed you're connecting at, orange means you have a 100Mb connection and green means 1000Mb (or gigabit), have a look and make sure yours is green. If it isn't that would be your problem. I recently noticed mine was orange and replugging it at my superhub didn't help, but did at my PC.



​I Mean doing a speed test it gets 70mb speed. It's green on the adapters so should be 100mb. gonna try different plug

Try the adaptor on the same circuit, not just a random plug.
Your power sockets upstairs and down would normally be on separate circuit breakers if you are in a house. Bring the other adaptor onto the same circuit.
The signal and therefore data travels along the "Live" wire. Although the supply to both circuits is normally from a common Live, It would give a better chance to diagnose/rule out other problems.

Would I be right in saying that powerline adapter manufacturer quoted figures are a total of both the up AND down speeds? Basically a case of 'creative marketing'?

bbfb123

I Mean doing a speed test it gets 70mb speed. It's green on the adapters … I Mean doing a speed test it gets 70mb speed. It's green on the adapters so should be 100mb. gonna try different plug


I think you mean megabit (Mb) not millibit (mb)
The sockets must be on the same same ring main if one is upstairs and one downstairs they are probably on a different ring. Most kitchens are also on their own ring. As said, they them both is a double-socket, if that works, you know it's the electrical wiring.

So people saying to move them to the same ring, how? My upstairs is separate to downstairs, with my router in the lounge. My 'office' upstairs, although getting a connection, is not great sadly...

Original Poster

guessing it's due to wiring. so there's no way to get full speed since it won't be used on the same floor wiring.

You are more likely to get a consistent high speed with a 5Ghz wireless connection that with powerline adapters. Like others have said, it is likely due to the wiring in your house. Either run a dedicated CAT 6 cable or use wireless - you will get better speeds than with powerline adapters.

At the end of the day mains circut is nowhere near optimised for data transmission. It's a botch, a kludge, * your actual mileage may vary - as they say

McNabFish

So people saying to move them to the same ring, how? My upstairs is … So people saying to move them to the same ring, how? My upstairs is separate to downstairs, with my router in the lounge. My 'office' upstairs, although getting a connection, is not great sadly...


No idea how your house is wired and assume you have a PL1200 netgear powerline setup. Your best bet is to switch off everything that you don't need on and test then. You can get a lot of noise from random appliances around your home from fridges, washing machines, crappy ebay phone chargers. See if you can optimise the devices with their software too as this sometimes gives a little more throughput. Other usual thing to check is that you haven't plugged them into extension leads or surge protected sockets.

bbfb123

guessing it's due to wiring. so there's no way to get full speed since it … guessing it's due to wiring. so there's no way to get full speed since it won't be used on the same floor wiring.


Not quite what I meant. I was suggesting the move as a first step. As long as the "Rings" are fed from the same mains supply it shouldn't make any difference, unless you have poor wiring. I have a similar unit to yours, running from my router, through the mains to a shed 120 feet away. I still get close to manufacturers speed. If your router is in the lounge, pick a socket near to it and do the test. If it is still the same:
Go around the house switching off one appliance at a time. As above, anything can cause interference with fridges and chargers (even good ones or your laptop oneX) top of the list. Shower and CH pumps etc etc.
Test the speed after each has been switched off. It could even be your neighbour or a fool down the road.
Hard wired is best of course.
Edited by: "getmeone" 11th May

kester76

No idea how your house is wired and assume you have a PL1200 netgear … No idea how your house is wired and assume you have a PL1200 netgear powerline setup. Your best bet is to switch off everything that you don't need on and test then. You can get a lot of noise from random appliances around your home from fridges, washing machines, crappy ebay phone chargers. See if you can optimise the devices with their software too as this sometimes gives a little more throughput. Other usual thing to check is that you haven't plugged them into extension leads or surge protected sockets.



​Away with work for the week, so will check when I'm home. Thanks

Strange that I've come across this as I'm having exactly the same issue with exactly the same devices; PL1200s.

My network consists of Virgin Superhub (Wifi turned off), NetGear Nighthawk X6 R8000, and a pair of PL1200s.

I connected a computer directly to the superhub, did a speedtest and got 210mb, connected through the PL1200 on the same ring and can't get higher than 70mb.

This is a brand new house (3 months old)

Did you get anywhere with it?

Original Poster

peterc2609

Strange that I've come across this as I'm having exactly the same issue … Strange that I've come across this as I'm having exactly the same issue with exactly the same devices; PL1200s.My network consists of Virgin Superhub (Wifi turned off), NetGear Nighthawk X6 R8000, and a pair of PL1200s.I connected a computer directly to the superhub, did a speedtest and got 210mb, connected through the PL1200 on the same ring and can't get higher than 70mb.This is a brand new house (3 months old)Did you get anywhere with it?



Yeah I put it down to the plug I was using. I've since put the adapter into a different plug socket in the room and the speed is now 100mb as it should be.​
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