DNS Server Not Responding Through Wireless Only On Domain

Posted on 2011-10-20
Last Modified: 2012-05-12
I have a Sonicwall TZ 100 wireless router supplying wired and wireless connections thoughout our domain.

I can connect to the router wirelessly but I am unable to connect to the Domain Controller/DNS Server from the wireless connection. Also, I am able to connect through a wired connection on the same machine.  I've checked the settings between the wireless and wired connections are near identical when using ipconfig /all (sans IP address .115 and .113).  

This issue is happening on all wireless connections.

I get a DNS Server cannot be contacted error when I have Windows try and diagnose what's wrong with the connection.

Any idea what's wrong?  Why/How is the sonicwall preventing my wireless machines from connecting to the domain controller (and DNS server)?

Any other ideas or is it the sonicwall?  The wireless connection seems to be the common denominator.

JOe K.  
Question by:ClaudeWalker
    LVL 59

    Expert Comment

    by:Darius Ghassem
    Can you ping the servers from the wireless clients? Seems like you have a connection issue

    Author Comment

    It was a firewall issue all along.  I guess I blocked all communications from WLAN to LAN.

    Any idea if there are specific ports I should keep open or just open it up entirely?  They are on the same subnet after all.
    LVL 21

    Assisted Solution

    Ports that need to be open for DNS are TCP and UDP 53.
    LVL 59

    Accepted Solution

    If they are on the same subnet then allow all ports to be opened

    Author Comment

    They are on the same subnet.  Thanks for the help!

    JOe K.

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