Not sure what's going on, but this has happened to a few users now, including myself, at random points.
Environment: System Version
7.1R7 (build 20581)
We use NC with split tunneling, policies are set to allow full access to our DNS/AD servers and Exchange. Sometimes users will launch NC, NC connects to the network no issues, but then Outlook wont connect. When doing some basic ping troubleshooting, can't ping anything on the network, or, even more oddly, can ping some servers and not others.
We have found that to correct the issue, if we log the user out and then log on as someone else form the same computer and launch NC, log out and then re logon as the original user having the issue, it fixes the connectivity problem.
Any chance it is associated with the IP address assigned to the user? You might keep a record of what IP addresses are assigned when the problem occurs. If these are only a small portion of your address space, you might look to see if router ACLs / firewall rules are treating that range differently, or whether there might be some routability issues.
Thanks, ended up having to open a case with JTAC, they are researching.... but yes, it appears as though DHCP via the NC profile isn't allocating IPs correctly, and issuing duplicate IPs to NC users. The temp fix for now, is haveing NC hand out IPs directly so we modified our internal DHCP scope to exlude the ones the IVE is now handing out. Not ideal but waiting to hear back from JTAC.