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Sonicwall Internet Access question

Posted on 2014-01-15
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Last Modified: 2014-01-21
We have a small office in Taiwan with about 8 computers and a Sonicwall TZ 150.  We recently shipped four new laptop over to the office and three of the laptops work fine.  The fourth laptop has a problem browsing public (external) websites (msn, google, yahoo, etc.).  I've tried both IE and Firefox, and neither one works.  We have the Sonicwall vpn'd to our office here in the US and this problem laptop can access email and intranet (internal) websites just fine.  If this user takes the laptop out of the office and uses a different internet service (coffee shop, home wireless, etc.) they can browse public websites without a problem.  I suspect that the Sonicwall is denying the public access to this computer but I don't know for sure.  Is there anything on the Sonicwall I can look for to see if it is causing the blockage?  Also, this problem computer can't even ping public ip's successfully (like 8.8.8.8).  Any ideas?
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Question by:jbobst
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Assisted Solution

by:iceboat
iceboat earned 250 total points
ID: 39784325
Is the SonicWall licensed for more than 5 users?  to check, log into the admin console of the Sonicwall device and go to the System>Licenses page.  Look in the count column for the number of Nodes/Users.  Are there enough licenses for each node?

Also check the Dashboard > Connections page to see what is currently connected, and
check the Dashboard>Log page to see what system messages appear when the user is denied public access.

Find out the IP that is assigned the problem computer and see if it is blocked by any rules on the Firewall>access rules page.

Are you using wireless?  If so, there are other possibilities.
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Assisted Solution

by:Miftaul
Miftaul earned 250 total points
ID: 39785863
I believe this has something to do with DNS setting on the 4th laptop. Please check th DNS setting on the 4th laptop. DNS shouldn't be set as sonicwall interface IP as it can not act as a dns.

You can to a packet capture on the sonicwall and see whats happening. Go to System -> Packet Monitor - Configure - Monitor filter -- Ether Type as IP and Source as the 4th Computer IP. - Click OK
SonicwallOnce done, go back to System -> Packet Monitor - and start capture.

Now go to 4th laptop and try to access some page. once that fails. Stop the packet capture and export  the capture file as libpcap and diagnose.
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Accepted Solution

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jbobst earned 0 total points
ID: 39786263
Guys, thanks for all the help.  I found the solution...it was simply a time zone issue.  The laptop in question still had our Pacific time zone instead of Taiwan.  Thanks again for the help.
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Author Closing Comment

by:jbobst
ID: 39796424
Figured out the cause
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