Accessing our company portal on the road

We have issues with our sales force accessing our company portal on the road,
they are connecting using a VPN client usually through the Verizon aircard we
give them.

The portal will work fine perhaps for a few days but eventually they will
get the "Internet Explorer cannot display the webpage" message.

The real problem is that they have no way of fixing this when on the road,
however, once the machine is brought back and "jacked" into our network we
can fix it doing the following:

1. From Internet Explorer go to “Tools� then “Internet Options�
2. Then click on “Delete�.
3. Then click on “Delete All� and select “Yes� at the next box.
4. Then select the “Security� tab at the top and select “Trusted Sites� then
“Sites�
5. Then add HTTPS://MPFS-WEBSEAL and select “Add� to drop it into the box
and then “Close�.
6. Then select the “Content� tab at the top and select the “Clear SSL State�
tab.
7. Then select the “Advanced� tab and scroll to the bottom and make sure
that USE SSL2.0, USE SSL 3.0 and USE TLS 1.0 are all selected.
8. Then select “Ok� at the bottom, close out of the internet and REBOOT your
machine.

I sometimes have to run IPCONFIG /FLUSHDNS to get it to work.

Now these options are not working for the sales force when they are on the
road and connected to our network via the VPN. This causes big issues when
these guys have to travel to corporate just to be able to access the company
portal.