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!

Edited September 8, 20232 yr by iSecret2048
Typo

I think it would be more clever to have an router with an 4G or 5G fallback dongle. With an UPS server and networking equipment continue to run, so the server is not aware of any internet loss. If the router is on the UPS too and switches over to mobile data, it would be transparent to all connected devices.

 

I know these kind of routers exist, there is even a version of a Fritzbox with builtin failover (to 4g) capability (no dongle needed).