Network Card Changes Protocol Access

I originally posted this under Voip then I realised changing the network card fixed my voip problem, so...basically it seems when I have a LAN cable stuck in the back the RTP (of the voip call) flows lovely, but when I switch to a wireless dongle, whilst it seems to be generally working, accessing the web, etc, the RTP is not getting thru to the softphone, although it is showing in Wireshark.
Silas2Asked:
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gpizzutoCommented:
Could be some ports blocked ?
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Silas2Author Commented:
I'm just looking at the router and it has two entries for the same pc, one for each network card, not that surprising I guess but could that affect it?
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Silas2Author Commented:
Re ports blocked, would the port be closed by changing from the LAN card to a wireless dongle?
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