Solved

Powerline adapters performance

Posted on 2014-02-05
2
618 Views
Last Modified: 2014-02-07
Hi

I'm still a little new to using powerline adapters (TP-Link, Devolo).
I suggest them to customers that don't want me to lay cable in their premises.

Sometimes I use straight point to point pairing, while in other cases I use wifi capable adapters to increase the wireless coverage.

I have used the software which accompanies these devices e.g. Cockpit, TP-Link Powerline Utility

I have recently begaun to pay attention to the throughput readings.
On the last tow installations I have noticed poor performance : 11Mbps, 25Mpbs, ... eventhough I tend to use AV 500 adapters. Is this normal ?

This morning I plugged two such adapters onto the same powerstrip and guess what ? 11Mbps for these two TP-Link Nano AV500

I was told that below 50Mbps I would run into performance issues

The tech support at TP-Link preferred to focus on my computer and my SMC gigabit switch instead of explaining why the throughput was so low between the  adapters.

Can anyone shed some light on this technology ?
What I initially thought was a simple plug and play solution is turning out to be a bit of a headache

thanks
yann
0
Comment
Question by:Yann Shukor
2 Comments
 
LVL 19

Accepted Solution

by:
regmigrant earned 500 total points
ID: 39835393
In general I have found Powerline technologies to be good when they work and difficult to troubleshoot when they don't. Over the course of the past few years I've come across wide variances in performance which seem to depend on several factors:-
1. Distance apart - instead of running them on a single strip try them on two separate sockets that you *know* are on the same ring
2. Multiple rings - even in domestic electrics there can be multiple mains rings and throughput always falls off if it has to traverse the main consumer unit
3. 'spiky' mains - just a term I use for areas where the  mains power is not clean. This can be caused locally - where an in house supply is subject to large switching loads such as a factory - but I've also seen problems in areas where the local voltage falls below 200/220 and is followed by a sudden surge
4. Variations in manufacturer - the quality of the chips and the design of the units makes a huge difference which is why (I believe)  I've struggled to get different manufacturers kit talking and in several cases different revisions of kit from the same manufacturer has had problems
5. Firmware - all kit should be same revision of hardware and software
6. Channels - some kit can handle multiple channels and I have had situations where one or two channels will be ok but further channels degrades performance

Having said all that the throughput you are looking at seems to represent a Wireless connectivity rather than that you would expect from an Ethernet-power line- Ethernet setup. there are some performance benchmarks here:-
http://www.smallnetbuilder.com/lanwan/powerline-charts/bar/89-up

How are you measuring throughput and how many channels do the TP-link support?

Are the performance issues you were warned about due to a single application or the number of users?
0
 
LVL 21

Expert Comment

by:robocat
ID: 39835541
>This morning I plugged two such adapters onto the same powerstrip

Actually using a powerstrip is a bad idea to begin with. Most manufacturers strongly advise against using powerstrips because these can contain filters that dampen the signal.

Plug them into two wall sockets directly and see what happens.

Also avoid any equipment on the same circuit that can interfere with the signal. Unplug everything else and test. Next re-enable equipment one by one until you find the offending appliance.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
How computer Arp Table gets populated. 21 87
Read-only SNMP string example ? 7 75
2960 and a VLAN id of 1237 2 49
Network access 4 23
This is an article about my experiences with remote access to my clients (so that I may serve them) and eventually to my home office system via Radmin Remote Control. I have been using remote access for over 10 years and have been improving my metho…
In this article, I am going to show you how to simulate a multi-site Lab environment on a single Hyper-V host. I use this method successfully in my own lab to simulate three fully routed global AD Sites on a Windows 10 Hyper-V host.
Viewers will learn how to connect to a wireless network using the network security key. They will also learn how to access the IP address and DNS server for connections that must be done manually. After setting up a router, find the network security…
Internet Business Fax to Email Made Easy - With  eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, f…

895 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

12 Experts available now in Live!

Get 1:1 Help Now