iSecret2048

Hi everyone, I'd like to refer to an older post regarding failover networking with a 4G LTE USB donge. This post is more than 2 years old, I'd like to know, whether any changes have occurred regarding support for this setup. I recently had a power outage (<15 mins) at home, without prior notice of course. I became aware of it almost 2 hours later, which is a big issue for me. At home, I've got a tower server, where Unraid is installed, a UPS with SNMP card inside. Everything is connected together with a 24-port PoE Cisco switch. The SNMP from the UPS is correctly setup within Unraid. Everything is powered through UPS. In case of a sudden power loss, this part of the network stays alive, while the switch can direct traffic within this environment. My biggest issue is the loss of uplink (fiber network) in case of power outage. Unraid is setup to send e-mail notifications in case of warnings, errors, other daily activities. Last time, when I had a power outage, due to the uplink being unavailable it wasn't able to send alerts via e-mail. Would it be feasible, to have set up a 4G LTE USB dongle, connected directly to server, which would act as a failover in case of uplink loss? Since the post from 2021, have there been any changes? Thank you in advance!