iperf\iperf.exe -c server -r -i 2 -w 524288
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 512 KByte
------------------------------------------------------------
------------------------------------------------------------
Client connecting to server, TCP port 5001
TCP window size: 512 KByte
------------------------------------------------------------
[ ID] Interval
Transfer Bandwidth
[ 4] 0.0- 2.0 sec 24.0 MBytes
101 Mbits/sec
[ 4] 2.0- 4.0 sec 24.1 MBytes 101
Mbits/sec
[ 4] 4.0- 6.0 sec 30.2 MBytes
127 Mbits/sec
[ 4] 6.0- 8.0 sec 30.8 MBytes
129 Mbits/sec
[ 4] 8.0-10.0 sec 28.1 MBytes
118 Mbits/sec
[ 4] 0.0-10.0 sec 137
MBytes 115 Mbits/sec
[ 4] 0.0- 2.0 sec 6.67 MBytes 28.0
Mbits/sec
[ 4] 2.0- 4.0 sec 6.87 MBytes 28.8
Mbits/sec
[ 4] 4.0- 6.0 sec 4.33 MBytes 18.2
Mbits/sec
[ 4] 6.0- 8.0 sec 6.17 MBytes 25.9
Mbits/sec
[ 4] 8.0-10.0 sec 6.05 MBytes 25.4
Mbits/sec
[ 4] 0.0-10.1 sec 30.4 MBytes 25.2
Mbits/sec
If I change the HT Mode from VHT Mode (AC) to HT Mode (N) in the driver properties, then my results get much better.
[ ID] Interval Transfer Bandwidth
[ 4] 0.0- 2.0 sec 33.4 MBytes
140 Mbits/sec
[ 4] 2.0- 4.0 sec 30.6 MBytes
128 Mbits/sec
[ 4] 4.0- 6.0 sec 33.0 MBytes
138 Mbits/sec
[ 4] 6.0- 8.0 sec 33.0 MBytes
138 Mbits/sec
[ 4] 8.0-10.0 sec 34.4 MBytes
144 Mbits/sec
[ 4] 0.0-10.0 sec 164
MBytes 138 Mbits/sec
[ 4] 0.0- 2.0 sec 25.8 MBytes
108 Mbits/sec
[ 4] 2.0- 4.0 sec 30.9 MBytes
130 Mbits/sec
[ 4] 4.0- 6.0 sec 29.6 MBytes
124 Mbits/sec
[ 4] 6.0- 8.0 sec 30.7 MBytes
129 Mbits/sec
[ 4] 8.0-10.0 sec 31.3 MBytes
131 Mbits/sec
Brick you might want to do the following. I dont know if your using reference or oem or windows drivers. I would goto www.intel.com goto menu support then automatically find drivers and software install the latest driver for you wireless direct from intel. Let me know if it lets you chip go back into AC mode and not N mode.
ReplyDeletehttp://driveragent.com/c/archive/e04cf023/image/11-0-103/Intel-Wireless-LAN-Driver-version-v16.1.4.4
Mike,
DeleteThanks for the thoughts. I've used both the Intel Driver Update Utility and Dell's System Detect tool to make sure I've got the latest driver. I'm current at 17.1.0.19. I've not tried any older versions. When things slow down, I'll work with one of the wireless guys here to see if we can figure out what is happening. He can look at the controller and see the details of my connection from his side while I look at the client.
Cheers!
Another option might be a firmware update on the AP and also look into the encryption you are using. WPA or WPA2. What is the make and model of the access point?
ReplyDeleteThey are Aruba 225 devices. We are scheduling an update soon - waiting for the latest GA version.
Delete