FTP, WWW, and Telnet Fail over RAS Even Though Ping
Works
Symptoms: On your computer running Windows NT or Windows 95, when you
use Remote Access (RAS) or Dial-up networking with the PPP and TCP/IP protocols
enabled, you cannot connect to computers on the Internet that are running
the World Wide Web (WWW), FTP, Telnet, or other software that relies on TCP/IP
packets to exchange information. PING.EXE and TRACERT.EXE, however, still
function correctly.
Cause:
You have VJ Header compression enabled and VJ Header compression is not
compatible with the PPP server or router you are connecting to for
Internet access.
-or-
Using Windows NT 4.0 you have Software Header Compression enabled, and it
is not compatible with the PPP server or router your are connecting to for
Internet access.
Resolution:
Perform the following steps to disable VJ header compression:
- Windows NT 3.5X
- Start RAS.
- From the list of servers to call, select the entry for the
Internet access server where the problem occurs.
- Click Edit.
- If the Advanced button is displayed, click Advanced.
- Click Network, and then click TCP/IP Settings.
- Click to clear the Use VJ Header Compression check box.
- Windows NT 4.0
Double-click My Computer.
- Double-click Dial-Up Networking.
- Click More, and then point to Edit Entry and Modem Properties.
- Click the Server tab, and then click TCP/IP Settings.
- Click to clear the check box next to IP Header Compression.
Windows 95
- Right-click the Dial-Up Networking connection with the problem
and then click Properties.
- Click Server Type, and then click TCP/IP Settings.
- Click to clear the Use IP Header Compression check box.
More Information:
VJ header compression (also referred to as IP header compression) is only
used during the exchange of TCP/IP packets. Ping.exe and Tracert.exe use
ICMP packets to test connectivity and, therefore, are not affected by VJ
header compression.
Provided by Microsoft
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