I have some issue with my LAN network with Rasberry PI 4. My network in PI has configuration:

eth0: negotiated 100baseTx-FD flow-control, link ok

when I run iper3 on PI:

iperf3 -s

a then on PC as client:

iperf3 -c

then I have result:

[ ID] Interval           Transfer     Bandwidth       Retr
[  4]   0.00-10.00  sec  8.54 MBytes  7.16 Mbits/sec    0  sender
[  4]   0.00-10.00  sec  8.49 MBytes  7.12 Mbits/sec       receiver

which is very bad. Can you help me please?

Thank you

  • well, we all know what a raspberry pi 4 is ... but then on PC as client ... tell us a little more about this "pc" – Jaromanda X Nov 14 '19 at 11:58
  • I have two laptot with the same result. First has Windows OS and the second has Linux/Debian OS. The test was from wifi connection, but from wired it's similar. – user1089362 Nov 14 '19 at 14:24
  • so, what is the speed between the two laptops? – Jaromanda X Nov 15 '19 at 7:55
  • What other devices (router/switches/wifi) are between the connection from the PC to the RasPi? How do you verified that's a problem of the RasPi? – Ingo Nov 15 '19 at 16:53

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