The network drop has not been activated in the wiring closet; the TCP/IP configuration is incorrect; the network adapter was damaged in the move
Divide the network in half, terminate it, and find which side is still not functioning. That is the affected area. Continue this process until the break is found
he forgot his password; his account has been disabled; his password has expired
Check the error log
A time domain reflectometer
MSBACKU.EXE
Fiber-optic cabling
CSMA/CD LAN
PGP
Proxy Serve
Map
Topology
Diagram
6000 Mbit/s
ipconfig /registerdns
OS/2
Appletalk
Terminal Adapter
Access Point
Star
WAN
LAN
MAN
ISP