Проблема в заголовке. Должно быть в районе 100 на 100 (ну не ниже 80/80), по факту идет 15-30 / 85. Запускаемся с live cd ubuntu - все ок.
[maxim@oit3 ~]$ uname -a
Linux oit3 5.2.13-arch1-1-ARCH #1 SMP PREEMPT Fri Sep 6 17:52:33 UTC 2019 x86_64 GNU/Linux
[maxim@oit3 ~]$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1280 qdisc fq_codel state UP group default qlen 1000
link/ether fc:aa:14:ab:db:76 brd ff:ff:ff:ff:ff:ff
inet 192.168.4.14/21 brd 192.168.7.255 scope global dynamic noprefixroute enp3s0
valid_lft 83402sec preferred_lft 83402sec
inet6 fe80::7c94:9156:51f8:e807/64 scope link noprefixroute
valid_lft forever preferred_lft forever
dmesg | grep enp3s0
[ 2.310364] r8169 0000:03:00.0 enp3s0: renamed from eth0
[ 3.251574] r8169 0000:03:00.0 enp3s0: Link is Down
[ 4.784968] r8169 0000:03:00.0 enp3s0: Link is Up - 100Mbps/Full - flow control off
[ 4.784976] IPv6: ADDRCONF(NETDEV_CHANGE): enp3s0: link becomes ready
lspci -v
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
Subsystem: Gigabyte Technology Co., Ltd Onboard Ethernet
Flags: bus master, fast devsel, latency 0, IRQ 18
I/O ports at d000 [size=256]
Memory at f7c00000 (64-bit, non-prefetchable) [size=4K]
Memory at f0900000 (64-bit, prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: r8169
Kernel modules: r8169
Драйвер r8168 и r8168-dkms пробовал, net.ipv4.tcp_window_scaling=0 - помогло 1 раз до перезагрузки, но и то до 65-60, net.ipv4.tcp_ecn=0 не помогло вообще. Используется network-manager.
