USGPRO4: 'The gateway is unable to connect to the Internet' - but it is

How To: Ubiquiti UniFi Security Gateway Pro 4 & Intrusion Prevention (IPS) (Updated) - free time

Should I use a USG-PRO-4 or USG for an incoming 1GB connection

Ubiquiti UniFi Security Gateway Pro 4 USG-PRO-4 Router w/ 2 SFP/RJ-45 Ports 810354021572

Build your secure and flexible network with Ubiquiti UniFi® Security Gateway Pro, part of the UniFi Enterprise System. (2) GbE RJ45 ports.

Ubiquiti UniFi Security Gateway Pro 4 USG-PRO-4 Router w/ 2 SFP/RJ-45 Ports

Well, I will give you a few reasons:1. Reset instructions will not be provided. This unit was able to power on and have its settings reset to factory

Ubiquiti UniFi USG-PRO-4 Security Gateway Pro Factory Reset

USG Pro shows Internet but no internet through switch

USG-PRO-4 & MPLS: Outbound routing works but unable to reach LAN from other sites

The Main Reason I Cannot Recommend a Ubiquiti Dream Machine Pro (until fixed), by Teri Radichel, Cloud Security

Ubiquiti Unifi Security Gateway (USG): Everything you need to know – Home Tech Time