We have dell latitude 5420 & 5520 laptops with onboard intel ethernet controller.
Problem is that the ethernet port is extremely slow. about 100kbyte/s throughput while on a gigabit connection.
Also when I pxe boot the system it's also painfully slow.
But here comes the funny part. When I attach a usb memory stick the throughput of the networkcontroller is as expected.
I've used latest ubuntu 20.04.2 kernel 5.8.0-55
I've used latest ubuntu 20.04.2 kernel 5.10.0-1029-oem
Turns out this problem is not showing up when I manually install the 5.8.18 kernel.
Also when I create my own iso with the help of Cubic and install the 5.8.18 kernel in it the pxe boot is working as expected with high throughput
We have dell latitude 5420 & 5520 laptops with onboard intel ethernet controller.
Problem is that the ethernet port is extremely slow. about 100kbyte/s throughput while on a gigabit connection.
Also when I pxe boot the system it's also painfully slow.
But here comes the funny part. When I attach a usb memory stick the throughput of the networkcontroller is as expected.
I've used latest ubuntu 20.04.2 kernel 5.8.0-55
I've used latest ubuntu 20.04.2 kernel 5.10.0-1029-oem
Turns out this problem is not showing up when I manually install the 5.8.18 kernel.
Also when I create my own iso with the help of Cubic and install the 5.8.18 kernel in it the pxe boot is working as expected with high throughput
system: Dell latitude 5420 + 5420
nic: Ethernet Connection (13) I219-LM
ubuntu 20.04.2
module: e1000e
Please assist. Thank you