Draytek 5500 Series manual Trouble Shooting 235

5.1	Create a LAN-to-LAN Connection Between Remote Office and Headquarter	211
5.2	Create a Remote Dial-in User Connection Between the Teleworker and Headquarter	218
5.3	QoS Setting Example	222
5.4	LAN – Created by Using NAT	225
5.5	Upgrade Firmware for Your Router	227
5.6	Request a certificate from a CA server on Windows CA Server	229
5.7	Request a CA Certificate and Set as Trusted on Windows CA Server	233
6 Trouble Shooting		235
6.1	Checking If the Hardware Status Is OK or Not	235
6.2	Checking If the Network Connection Settings on Your Computer Is OK or Not	235
6.3	Pinging the Router from Your Computer	238
6.4	Checking If the ISP Settings are OK or Not	239
6.5	Backing to Factory Default Setting If Necessary	241
6.6	Contacting Your Dealer	242

VigorPro5500 Series User’s Guide vii