Access existing PrintServer from remote computer C#

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.NET

C#5.0

webservice

I'm working on a webservice to manage Printers (local and remotely) using C#.

I am able to connect to my own machine (Windows 7) Printers using this and it works like a charm:

PrintServer localPrintServer = new PrintServer(@"\\myMachineName");

But I am getting an exception if I try the same thing for a remote server (Windows Server 2008 R2):

PrintServer ServerPrintServer1 = new PrintServer(@"\\myServerName");

An exception occurred while creating the PrintServer object. Win32 error: The printer name is invalid.

I've already installed the Print Server Feature in my Windows Server as you can see here: http://runto.it/gXBOIn

The Windows Server is accessible from my machine:

*C:\Users\Tomas>ping winad1 Pinging winad1.london.gbs [192.168.42.12] with 32 bytes of data:
Reply from 192.168.42.12: bytes=32 time=3ms TTL=128
Reply from 192.168.42.12: bytes=32 time=1ms TTL=128
Ping statistics for 192.168.42.12: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 1ms, Maximum = 3ms, Average = 2ms C:\Users\Tomas>*

Any suggestions?

Thank you in advance :)