Toad for SQL Server connection timeout Expired

I installed TOAD 6.1 in Windows 7 but I tried to browse database, it show error “Connection Timeout Expired. The timeout period elapsed while attempting to consume the pre-login handshake acknowledgement. This could be because the pre-login handshake failed or the server was unable to respond back in time. The duration spent while attempting to connect to this server - [Pre-Login] initialization=3; handshake=14995;”

I tried to connect to SQL Server 2000 SP4, Windows2000. but I can browse database via Windows XP completed.

Hi,

We use the environments like you provided, but we can't reproduce this issue. I may cause by your network. Would you like try reconnect your connection or set longer connection timeout in Parameter?

We can set this Parameter in here:

Best Regards,

Kelly