Verizon MiFi unit loses Internet with 2 VPNs

[xLon]

We are running about 20 laptops with Verizon MiFi units.  We also have 2 VPNs established (GlobalProtect & WatchGuard).  When both are connected, the MiFi units will lose Internet for about 10 seconds, this happens about every minute.  If I disconnect one of the VPN, I do not lose Internet.  The actual MiFI units will say on the screen that it lost Internet connectivity.

Any Suggestions?