Excluding this, as I have tried all methods listed on this site. And excluding this and this, they are in the aforementioned site. What are possible causes for a software based slowdown of internet.
- Booting in Windows or other live-boot disk makes Internet work, pings anything 0% loss.
- Router can be pinged by the PC in question, while running Ubuntu, with 0% loss as well as anything in the same network 0% loss.
- Pinging or mtr, by the PC in question to anything outside the network(on the other side of the router) results in 100% loss.
- If the Router or other devices on the network try to ping the computer in question, they have 80% to 95% loss.
What could possibly be the cause of this kind of network failure on Ubuntu?
Ubuntu PCs with this problem have responses to
lspci -knn | grep Eth -A2:
02:00.0 Ethernet controller : Qualcomm Atheros AR8131 Gigabit Ethernet [1969:1063] (rev c0) Subsystem: Micro-Star International Co., Ltd. [MSI] Device [1462:7599] Kernel driver in use: atl1c
This one has under 80% loss ~50% using a USB to Cat5 network port
00:13.2 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller [1002:4396] Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] SB7x0/SB8x0/SB9x0 USB EHCI Controller [1002:4396] Kernel driver in use: ehci-pci