PPPoE and Sound do not work

[jajunior]

CPU Type DualCore AMD Athlon 64 X2, 2200 MHz (11 x 200) 4200+
Motherboard Name Phitronics AM2NIK-M
Motherboard Chipset nVIDIA nForce 6100-4xx, AMD Hammer
Audio Adapter Realtek ALC662 @ nVIDIA MCP61 - High Definition Audio Controller
Network Adapter NVIDIA nForce Networking Controller
nVIDIA MCP61 - LAN Controller (PHY: Broadcom AC131)

All good, but PPPoE dont work. Just "connecting, connecting" and dont connect. What could be? Sound dont work, too.