i want brief description of power line communication for LAN connection & related circuits

 

google. its your friend. use it.

 

Hello,

Here is a link from the WIKI:
http://en.wikipedia.org/wiki/Power_line_communication

Greetings,
Bertus

 

http://www.pua-plc.com/files/upload/041021__Whitepaper_PLC_2004.pdf this is a white paper you will get much information

 

i thing there is some problem in Lan you have to concern to your hardware engineer.