Cannot connect named instance database from outside

Hello there,

I am trying to use DbVisualiser to connect to a named instance database remotely. I have 2 DB on this remote server 2008R2(named instance) and 2012(default instance). The databases are on named instance but for some reason I cannot connect to this db with DBVis. I am able to connect to other DB servers using DbVisualiser but not on this server where i have 2 instance. please see screenshot for more info.

cheers
Zolf

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zolfAsked:
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zolfAuthor Commented:
From Studio management I am able to connect to the remote db but to its default instance even though i mention the named instance. please see shot.

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zolfAuthor Commented:
I got the reason for this issue. The problem was I was not telling my FF to port forward it to the correct port of the named instance(51698). So it was forwarding it to the default instance(14197 -> 1433)

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