Lightning SA MultiCom, User Manual, Page: 104 / 172

Chapter 5 Troubleshooting
104 MultiCom Firewall User’s Manual
PPTP Troubleshooting
If you are using a PPTP connection there are a few specific troubleshooting steps
for you to try. These require using the web server diagnostic pages found at
“Web Server Status Reports” on page 74. Common problems that can block your
Internet connection include...
• incorrect password
• PPTP server (ISP) not available
• incorrect IP configuration of WAN or LAN
Incorrect Password
If you have typed in an incorrect username or password you will not be able to
open a PPTP Internet connection with your Internet Service Provider.
To check if this is the case visit the PPP Link (LCP) status page on your firewall.
You will see the error message “CHAP authentication failed”. This means that a
connection to the ISP is possible but that the username and password you have
entered is incorrect.
Verify your username and password is correct and/ or contact your Internet
Service Provider.
PPTP Server Not Available
If your cabling is incorrect, the modem is not functioning/ configured properly,
the xDSL line is not functioning, or the IP Address of the WAN interface is not in
the same subnet as the Broadband Modem you will not be able to reach your
Broadband Modem’s PPTP server to correctly receive the IP configuration to
communicate with the ISP.
To check that this connection is available or not visit the PPTP status page on
your firewall. If you see the error message
• “Connection refused” means the IP address that was given for the PPTP
Server is refusing to allow an PPTP connection.
• “Connection timed out” means there is no response from the remote IP
Address when a request is made to open a PPTP tunnel.