In Windows 7, you reach this setting via Start / Network / Network and Sharing Center / Change Adapter Settings / right click on the appropriate NIC / property / configure / Advanced / Flow Control filters (flow control) to disable or deactivate. The flow control comes from old times in which TCP is not regulated the traffic.
Now I have already tested the adapter pair for several weeks under a variety of conditions in practice and over again. Since I do not much felt by statements a la "My Internet is slow." think, I have collected a few numbers for the experts. Before setting up the experiment, it is advisable to test several possible outlets and select the maximum data rate. Electricity consumers in the vicinity should be connected necessarily to the adapter because it contains a blocking filter, thus preventing the spread of disturbances on the power line.
-
Experimental setup:
Host A - Gigabit switch - Powerline adapter - about 40 m permanently installed power cable - Powerline adapter - Host B
Displaying transmit gross data rate Host A: swaying 100-210 Mbit / s
Displaying receive gross data rate Host A: swaying 180-260 Mbit / s
Firmware version of both adapters: 5.2.3-02
iperf with over 60 sec. measured data throughputs:
-----
100 Mbit / s (Green mode active):
A -> B 1 TCP stream: 54 Mbit / s
A -> B 10 TCP streams: 73 Mbit / s
B -> A 1 TCP stream: 59 Mbit / s
B -> A 10 TCP streams: 86 Mbit / s
with hrPING measured package runtime:
Packets: sent = 1000 = 1000 rcvd, error = 0, Lost = 0 (0.0% loss) in 499.508481 sec
RTTs in ms: min / avg / max / dev: 1,414 / 4,031 / 40,058 / 3,947
-----
1000 Mbit / s (Green mode inactive):
A -> B 1 TCP stream: 64 Mbit / s
A -> B 10 TCP streams: 78 Mbit / s
B -> A 1 TCP stream: 56 Mbit / s
B -> A 10 TCP streams: 92 Mbit / s
Packets: sent = 1000 = 1000 rcvd, error = 0, Lost = 0 (0.0% loss) in 499.508817 sec
RTTs in ms: min / avg / max / dev: 1,525 / 3,644 / 40,087 / 3,442
-
Power consumption measured by VOLTCRAFT Energy Check 3000 (measures performance from 1.5 W):
Standby: not measurable (active at 100 Mbit / s (Green mode): 1-2 W
active at 1000 Mbit / s (Green mode inactive): 2-3 W
The measurement results can be the following statements:
- Based on the maximum gross data rate of 500 Mbit / s is achieved about 15% (70 Mbit / s).
- The attainable net data rates correspond to approximately 50% of the specified in the software gross data rate.
- The adapters achieve nearly the performance of a Fast Ethernet connection (100 By / s).
- The signal propagation time is increased by about about 3 ms compared to a cable
- The signal propagation time is approximately 0.5 ms Gigabit under a Fast Ethernet connection.
- The adapters are very economical and together cause less than 5 electricity costs per year.
- The "Green Mode" (Fast Ethernet, 100 Mbit / s is of cost / benefit point of view the "not Green Mode" (Gigabit) is preferable because the disadvantages (slightly higher latency) from the advantages (lower energy consumption) predominate more than 100. Mbit / s throughput are always unrealistic.
- The adapters are worse than a cable connection (logical!) But better than any WiFi connection.
Some words on the operation:
- Plugging, work and forget.
- Updates are maintained by AVM.
- Software is not cluttered and easy to understand.
In short, yes, the purchase is worth it if you want to lay a cable. Even with the rather high price. For the average end-user devices are highly recommended and preferable to any wireless connection. Therefore, there's me ne strong buy recommendation if you can not lay cable.
