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I have a computer and a network printer in 192.168.5.0/25 subnet. The computer has both WLAN and wired connection, each one through an independent IP address. Whenever I switch to WLAN from wired network, the printer icon in "devices and printers" appears subdued and I'm no longer able to print, it says "without connection", but still the ping to the printer succeeds.

I tried disabling the Windows Firewall for every type of network, checking if there was any switch port misconfiguration but everything's ok.

Thanks in advance for your help.

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Is File and Printer Sharing enabled for your wireless connection? –  Oliver Salzburg Feb 21 '12 at 16:27
    
Do I have to enable it? I am accessing the printer directly, by using a TCP/IP port. I have no interest in sharing my connection. –  TechCP Feb 21 '12 at 19:39
    
Well, does it make a difference if you enable it? I was assuming it is required so that the service that talks to the printer is even using that connection. –  Oliver Salzburg Feb 21 '12 at 19:48
    
Enabling Sharing over this connection does not have effect. –  TechCP Feb 22 '12 at 16:49

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