less throughput

[hw1380]

Router: RT-AC68R/U
Firmware: 380.58
Bootloader (CFE): 1.0.2.0

I have notebook with a "Intel Dualband Wireless-AC 8260".
The wireless card is connected to the 5Ghz band to my router.
When I download or upload a file to my NAS on the same network, the network throughput is limited to about 15-18Mbyte/sec.

These are the 5Ghz WLAN settings on my router:
Wireless mode: auto
Channel bandwidth: 80Mhz
Control channel: auto

Wireless client is a "Acer Aspire VN7" notebook with Linux installed.
Is there anything which I can tune in order to get more throughput ?
I'm asking because I'm far away which I can expect from ac mode.

 

[RMerlin]

What link rate do you get?

 

[hw1380]

What link rate do you get?

In "System Log" the 5Ghz wireless show the following values:
RSSI: -76 dBm
SNR: 0 dB
Noise: -91 dBm
Channel: 40/80
Rx/Tx: 130/175Mps

Are these the values you were asking for ?

 

[Nullity]

In "System Log" the 5Ghz wireless show the following values:
RSSI: -76 dBm
SNR: 0 dB
Noise: -91 dBm
Channel: 40/80
Rx/Tx: 130/175Mps

Are these the values you were asking for ?

Were those measurements taken during a file-transfer from your local NAS?

 

[hw1380]

Were those measurements taken during a file-transfer from your local NAS?

Yes

 

[ColinTaylor]

Rx/Tx: 130/175Mps

That figure is perfectly consistent with the throughput you are seeing , 130/175Mps = 16/21Mbytes/sec.

But it does seem low. How far away from the router is the laptop? Move the laptop to within 10 feet of the router and check the throughput again. Check the link speed whilst you are transferring data.

Try updating the drivers on the laptop. Intel's drivers are notoriously dodgy.

 

[hw1380]

That figure is perfectly consistent with the throughput you are seeing , 130/175Mps = 16/21Mbytes/sec.

But it does seem low. How far away from the router is the laptop? Move the laptop to within 10 feet of the router and check the throughput again. Check the link speed whilst you are transferring data.

I have the following signal strength:
Desk (downstairs): 43%
3m away from the router: 70%

I have the same link speed at both distances.

Try updating the drivers on the laptop. Intel's drivers are notoriously dodgy.

I do not think that it is related to the Intel's drivers because I have the same issue also on my other laptop which is having a Atheros ac-Wireless.

 

[john9527]

Wireless client is a "Acer Aspire VN7" notebook with Linux installed.

Most linux distributions have been slow to update their regulation db's. See if this applies.
http://www.snbforums.com/threads/rt...reless-n-connection-solved.32760/#post-262258

 

[hw1380]

Most linux distributions have been slow to update their regulation db's. See if this applies.
http://www.snbforums.com/threads/rt...reless-n-connection-solved.32760/#post-262258

I just tested the throughput with a Windows10 laptop and got the same results.
So, there is no need to update the regdb because it is not related to the OS.

 

[RMerlin]

Make sure all antennas are properly screwed in. Also test with a totally different channel (one of the high numbered ones if your country allows it).

 

[hw1380]

The problem is solved and it was my fault.
The cpu type of my QNAP-NAS is having a quite slow ARMv7 and I started a job which compresses some big disk-images files before which I forgot.
Secondly, I was testing by scp the testfile to the QNAP which locked the second cpu of the qnap.
Today I did the following:
- WebUI@ASUS: changed the control channel from 56 to auto (100)
- QNAP-NAS: killed gzip process
- Notebook: copied the testfile by NFS instead of scp, because I noticed that the scp process utilized the other CPU by 100%

Result (downstairs): 20Mbyte/sec
Result: (3m away from router): 55Mbyte/sec

Now, I would like to increase the tx-power of the router but it is already set to 100%.

 

[RMerlin]

ow, I would like to increase the tx-power of the router but it is already set to 100%.

You can't.