XR500 Won't Connect to Company VPN (GlobalProtect)

[FeuerFrei111]

Netgear Community,

As the name implies, my XR500 won't connect to my company VPN of GlobalProtect. When trying to connect, GlobalProtect states: "Gateway access.XXXXXXXX.com: The network connection is unreachable or the gateway is unresponsive. Check the network connection and reconnect." I have tried to set up Port Forwarding utilizing 443 for TCP and 4501 for UDP to try and help with no success. When I connect to GlobalProtect using my Verizon Hotspot, I have zero issues. 

I am running v2.3.2.130

Any help you can provide sure would be appreciated.

Thank you,

Lucas

[Netduma-Fraser]

Try the following:
Set NAT to Open in WAN Settings
Disable QoS completely from the Congestion Control 3 horizontal line icon menu
If needed make a Traffic Controller rule to allow ALL traffic to the device
Then see if it works.

[plemans]

what modem/gateway is the XR500 connected to? 

[FeuerFrei111]

Netduma-Fraser,

Thank you for the reply. I made all 3 changes, APPLY, and still no luck.

[FeuerFrei111]

Plemans,

It is a fiber connection to a Zhone (Model #: 400-01539-03) that plugs directly into my XR500.

[Netduma-Fraser]

Just for a test put the device in the DMZ and see if it works, either way then remove it as it is a security risk.

[plemans]

I didn't see a zhone modem/gateway with that model. But most of the models I seen from Zhone were gateways with integrated routers. 

Is the zhone in passthrough/modem only mode? Or do you have the xr500's IP address in the zhones DMZ?