VPN Not Resolving IP Addresses

We use a Juniper Networks SA700 VPN appliance.  It was fully functional for home users to connect, and for an unknown reason, now is not functioning.  Here are the steps at the moment:

The public login page is available
Users can successfully authenticate and start the Network Connect application
The Network Connect application claims to have connected and does provide an assigned IP address within the configured VPN's DHCP range (i.e. "192.168.x.x"). However, when the user runs an "ipconfig /all" from the remote location, they get the following related to the VPN connection:
Ethernet adapter Local Area Connection* 9:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Juniper Network Connect Virtual Adapter
   Physical Address. . . . . . . . . : 00-FF-20-DD-xx-xx
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::3dca:4b00:6a89:xxxx%14(Preferred)
   Autoconfiguration IPv4 Address. . : 169.254.xx.xxx(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.0.0
   Default Gateway . . . . . . . . . : 0.0.0.0
   DHCPv6 IAID . . . . . . . . . . . : 385941264
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-65-24-0B-00-50-8D-B7-xx-xx

   DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
                                       fec0:0:0:ffff::2%1
                                       fec0:0:0:ffff::3%1
   NetBIOS over Tcpip. . . . . . . . : Enabled


I understand from the ipconfig info that the remote computer is not successfully negotiating the network ip address (which is why the user can't even ping our servers as they could when successfully connected).  But I am not versed enough to know how to troubleshoot this issue (I inherited this setup and am not strong with networking devices).

Any help would be greatly appreciated - thanks in advance!
Dan CarpIT DirectorAsked:
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bsidfwCommented:
Sounds like the Juniper box needs a reboot to start with.  Have you tried power cycling it?
Dan CarpIT DirectorAuthor Commented:
Thanks bsidfw - I did reboot the box (can't truly power cycle it because I'm not on site today) with no effect.
Dan CarpIT DirectorAuthor Commented:
bsidfw - figured out my problem...

Since the last time I've tested the VPN at home, I had replaced my home networking setup.  The old router and the new router used different subnets and I didn't think anything of it at the time.  Turns out that my new router and the office LAN operate using the same subnet.  By switching my home network to a different subnet, everything now works perfectly.  I'll have to ask the other users who've had problems if this is also their issue, but I'm guessing that it is.

Thanks again for your help!

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aleghartCommented:
Big issue when office LANs use 192.168.1.x or 192.168.0.x.   It's a bit of laziness, I've been guilty also.

It's far easier to change the office LAN once than to constantly provide tech support to every home user who is using their router default settings.
Dan CarpIT DirectorAuthor Commented:
Resolved issue on my own.
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