One of our users is having strange problems with network connectivity which only seems to affect certain protocols (http & ftp from what has been observed so far).
He is on a corporate LAN, running Windows XP SP3. He can do the all of the following successfully:
- access our externally hosted Exchange server using Outlook 2007
- access file servers on the LAN using Windows explorer
- ping external IP addresses
- ping external domain names (e.g. google.com)
He has problems with the following however:
- Accessing intranet sites - sites are found, the page Title displayed and sometimes some or all of the page content, but IE then hangs at 50% CPU usage
- Accessing internet sites - no content is retrieved, and IE hangs at 50% CPU usage
- FTP (from a DOS command prompt) - an error is returned when an OPEN command is attempted on a remote FTP site.
We've run an (AVG) anti-virus scan, but found nothing.
Can anyone suggest what to try next?
He is on a corporate LAN, running Windows XP SP3. He can do the all of the following successfully:
- access our externally hosted Exchange server using Outlook 2007
- access file servers on the LAN using Windows explorer
- ping external IP addresses
- ping external domain names (e.g. google.com)
He has problems with the following however:
- Accessing intranet sites - sites are found, the page Title displayed and sometimes some or all of the page content, but IE then hangs at 50% CPU usage
- Accessing internet sites - no content is retrieved, and IE hangs at 50% CPU usage
- FTP (from a DOS command prompt) - an error is returned when an OPEN command is attempted on a remote FTP site.
We've run an (AVG) anti-virus scan, but found nothing.
Can anyone suggest what to try next?
