installing r8168-dkms seems to better the result, but not completely solve it.
Suggested here: https://askubuntu.com/q/1488178 Afterwards download is 920 mbit and upload 400 mbit, should be 980/980 mbit. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2028999 Title: Slow download speed kubuntu 23.04 starting from kernel 6.2.0-25 Status in linux package in Ubuntu: Confirmed Bug description: After upgrading kernel to linux-image-6.2.0-25-generic (or -26), I experience slow download speed (20-30Mbps instead of the expected 500Mbps-1Gbps). This happens with firefox, chrome, chromium and wget. Upload speeds are ok. Downloads in LAN seems not to be affected. Only from the Internet (i.e.: speedtest.net with firefox/chrome/chromium or some big ISO files downloads). When booting with older kernel, i.e. 6.2.0-24, the problem disappear. My network card is a Realtek, see attached lspci output, and is using r8169 module. PC is a Dell Optiplex 3080 /proc/version_signature: Ubuntu 6.2.0-26.26-generic 6.2.13 lspci output is attached To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2028999/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp