Reddit reviews Huawei E5151 21 Mbps 3G Mobile WiFi Hotspot with Ethernet Port (3G in Europe, Asia, Middle East, Africa & T-Mobile USA)
We found 1 Reddit comments about Huawei E5151 21 Mbps 3G Mobile WiFi Hotspot with Ethernet Port (3G in Europe, Asia, Middle East, Africa & T-Mobile USA). Here are the top ones, ranked by their Reddit score.
Support Enthernet port and 3G to access InternetAble to connect with Tablet, Laptop, Mobile Phone, Notebook and different types of WiFi devicesSupport up to 10 WiFi enabled devices at the same timeOne-Touch connection and LED light display5 hours working and 250 hours stand-by by battery (while Wifi is off)
Ok so I would do this then.
Buy a Cisco 3925 it has 3 gigabit ports.
port 1 to LAN (GPU Farm)
port 2 to Primary ISP
port 3 to Hotspot with Ethernet such as: https://www.amazon.com/Huawei-E5151-Hotspot-Ethernet-T-Mobile/dp/B00B4AYPLU
The router will run NAT and firewall, as well as IP SLA which you can use to monitor an external IP Address. Similar to this ( you won't need 3 routers) https://www.cisco.com/c/en/us/support/docs/ip/ip-routing/200785-ISP-Failover-with-default-routes-using-I.html