Decreasing delay before network is connected

Our remote laptop users are establishing a VPN connection via a SonciWall firewall.  The connection shows as "connected".

However, when they try to synchronize data, they get a message indicating that they cannot find the server for synchronization.

If we open up a dos prompt and ping the internal IP of the firewall, then ping the name of the server (name, rather than IP), we can then successfully start the sync process.

I suspect this is a timing issue before the network is fully established.   The ping forces the connection, which seems to work.   But I was wondering if there is another way to do this.  (Field sales people are not all that comfortable with DOS prompts and ping commands.)
Tomster2Asked:
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michaelfox1Connect With a Mentor Commented:
Look for the dns suffix search order in the advanced settings of TCP/IP properties.  Append your dns domain name in there.  The ping is forcing the connection because it caches the name resolution and then applications can use that.  BTW, don't mess with the lmhosts file for "good dns lookup."   That makes no sense and is wrong.
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smurteiraCommented:
Do you use WINS?  If you do, make sure you edit the lmhost file on the laptops using the VPN with the server name and IP address of your servers for good DNS lookup.  Hope this helps.
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smurteiraCommented:
No... the lmhost file editing for "good dns lookup" does work, because I've used it at a previous job with sonicwall vpn and it worked like a charm.  But you only need it if you have WINS.
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michaelfox1Commented:
yeah because it is for wins and has nothing to do with dns
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Rob WilliamsConnect With a Mentor Commented:
Actually LMHosts file works fine without WINS but as michaelfox1 suggested it is independent of DNS. Though LMHosts is an excellent name 'resolution solution ' i believe file synchronization (if we are talking about offline files) will require DNS. Make sure your users are assigned only your internal/corporate DNS server's IP, i.e. not the ISP's DNS, and add the DNS suffix as suggested by michaelfox1.
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michaelfox1Commented:
Good point about internal DNS IP's RobWill.  This can be set on the sonicwall's DHCP server.  I've done it on a Pro 3060.  What kind of sonicwall are you running?
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Tomster2Author Commented:
Have not been back to this site to complete this - but did not want to leave the contributors hanging.  Thanks.
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Rob WilliamsCommented:
Thanks Tomster2. Good luck with it.
--Rob
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