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Hello,
We are experiencing Network troubles on the Dell OptiPlex 7060 Computer with Windows 10 Version 1803 and 1809.
This affect greatly the UDP performance for one of our application.
To Demonstrate this we used Iperf3 on another computer with a direct network link.
Here's the output on the OptiPlex Computer :
-----------------------------------------------------------
Server listening on 1001
-----------------------------------------------------------
Accepted connection from 192.168.16.10, port 62268
[ 6] local 192.168.16.1 port 1001 connected to 192.168.16.10 port 60459
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
[ 6] 0.00-1.00 sec 7.57 MBytes 63.5 Mbits/sec 0.215 ms 159/1128 (14%)
[ 6] 1.00-2.00 sec 12.0 MBytes 100 Mbits/sec 0.221 ms 29/1561 (1.9%)
[ 6] 2.00-3.00 sec 11.8 MBytes 99.4 Mbits/sec 0.250 ms 0/1516 (0%)
[ 6] 3.00-4.00 sec 10.4 MBytes 87.2 Mbits/sec 0.279 ms 152/1482 (10%)
[ 6] 4.00-5.00 sec 11.6 MBytes 97.7 Mbits/sec 0.267 ms 73/1564 (4.7%)
[ 6] 5.00-6.00 sec 11.8 MBytes 99.2 Mbits/sec 0.244 ms 0/1514 (0%)
[ 6] 6.00-7.00 sec 12.0 MBytes 101 Mbits/sec 0.242 ms 1/1541 (0.065%)
[ 6] 7.00-8.00 sec 10.7 MBytes 90.0 Mbits/sec 0.266 ms 136/1509 (9%)
[ 6] 8.00-9.00 sec 12.1 MBytes 101 Mbits/sec 0.247 ms 1/1544 (0.065%)
[ 6] 9.00-10.00 sec 11.8 MBytes 99.0 Mbits/sec 0.252 ms 18/1529 (1.2%)
[ 6] 10.00-10.20 sec 2.22 MBytes 95.2 Mbits/sec 0.249 ms 0/284 (0%)
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
[ 6] 0.00-10.20 sec 0.00 Bytes 0.00 bits/sec 0.249 ms 569/15172 (3.8%)
-----------------------------------------------------------
In some cases we even had a Lost packet ratio that goes well beyond 20 %.
We suspect that this behavior is linked with an Upgrade from some drivers ( ?? ) :
- If we install a fresh 1809 version without being connected to the internet : the tests with iperf3 are pretty good : 0% of Lost Packets
- if we do the same , but we instead connect the computer to the internet, we experience a high ratio of lost Packets. We tried then to install drivers from intel and Dell to go back to a working state : this had no effect on the network performance.
Has someone any idea of :
- the source of the problem ? we think it's around the intel 300 chipset ( we have no real clue )
- how to solve the problem after being connected to the internet ? ( rolling back to version that worked )
PS :
We made the same test in Safe Mode with Networking.
And this is quite surprising...
Here's the output from iperf3 :
-----------------------------------------------------------
Server listening on 1001
-----------------------------------------------------------
Accepted connection from 192.168.16.10, port 60193
[ 6] local 192.168.16.1 port 1001 connected to 192.168.16.10 port 64307
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
[ 6] 0.00-1.01 sec 7.25 MBytes 60.1 Mbits/sec 0.118 ms 0/928 (0%)
[ 6] 1.01-2.01 sec 12.0 MBytes 100 Mbits/sec 0.141 ms 0/1531 (0%)
[ 6] 2.01-3.00 sec 12.1 MBytes 103 Mbits/sec 0.232 ms 0/1548 (0%)
[ 6] 3.00-4.01 sec 11.9 MBytes 98.7 Mbits/sec 0.222 ms 0/1524 (0%)
[ 6] 4.01-5.01 sec 11.7 MBytes 98.5 Mbits/sec 0.109 ms 0/1502 (0%)
[ 6] 5.01-6.00 sec 12.0 MBytes 102 Mbits/sec 0.258 ms 0/1538 (0%)
[ 6] 6.00-7.00 sec 12.0 MBytes 100 Mbits/sec 0.246 ms 0/1530 (0%)
[ 6] 7.00-8.00 sec 11.6 MBytes 97.6 Mbits/sec 0.200 ms 0/1490 (0%)
[ 6] 8.00-9.01 sec 12.2 MBytes 101 Mbits/sec 0.209 ms 0/1562 (0%)
[ 6] 9.01-10.00 sec 12.0 MBytes 102 Mbits/sec 0.212 ms 0/1535 (0%)
[ 6] 10.00-10.37 sec 3.57 MBytes 80.2 Mbits/sec 0.201 ms 0/457 (0%)
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
[ 6] 0.00-10.37 sec 0.00 Bytes 0.00 bits/sec 0.201 ms 0/15145 (0%)
-----------------------------------------------------------
Server listening on 1001
-----------------------------------------------------------
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Ok Thanks !
we had just opened an IPS case for this RST Driver problem
Best Regards
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