Try this:
Get the ip address of your Solaris server (If you don't have, your System Administrator may help). Then go to this location
C:\WINDOWS\system32\drivers\etc
open the "hosts" file in notepad. make an entry at very end as follows:
<ip adress> <tab> <hostname of server>
for eg
127.0.0.1 localhost
10.164.93.23 tkp-01.svr
Now save the hosts file.
Please note: To make changes to hosts file, you must have complete local admin rights on your PC.
While logging using winSCP, I hope you are using correct port and File protocol.
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