The same problem exists in Ubuntu 16.04.1 (I use Ubuntu 14.04 - works fine). I use DSL connection, pppoe service, all network settings is default - I change only login, password and service fields. Laptop - DELL Inspirion 3542. (SHA256 is fine, DVD is fine, it was burned at slowest speed, tried different USB-sticks, DVD's). YouTube is slower that usually, some sites load slowly, some can't be loaded at all (speedtest.net, verizon.com/speedtest/).
Network card info:
Network card info:
Code:
Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 07)
Subsystem: Dell Device 0651
Kernel driver in use: r8169