Most businesses that lose connectivity already had a backup. The problem is that the backup traveled through the same conduit, the same pole line or the same building entrance as the primary. When a backhoe or a storm hit that path, both connections went down together.
What path diversity means
Path diversity means your primary and backup connections reach the internet through physically separate routes, built on different technologies wherever possible. A second wired circuit from a different provider helps, but if it enters the building through the same point or rides the same poles, it shares the same risks.
The three common backup options
5G fixed wireless
A cellular router uses the wireless network rather than anything buried in the street. It is quick to install, easy to replicate across many sites, and it fails for completely different reasons than fiber does. For most multi-site businesses, this is the first backup layer to add.
Low-earth-orbit satellite
Satellite such as Starlink reaches the internet from the sky, independent of local wired and cellular infrastructure. It is valuable where cellular coverage is weak, and as a third layer for sites that cannot go offline at all.
A second wired circuit
A second fiber or cable line can add capacity, but it only adds resilience if it truly takes a different route. Confirm the entry point, the pole or conduit path and the upstream provider before counting on it.
Make failover automatic
A backup only helps if traffic moves to it on its own. The edge router or SD-WAN device should watch the health of each link and shift traffic when the primary degrades, not just when it fails completely. Payment systems, phones and cloud applications should keep working without anyone touching a cable.
A real example
A global tire manufacturer needed high-bandwidth primary and backup service at a facility where the building fought indoor signal and a rooftop antenna was not wanted. SimpleCom mounted the router outside where signal was strongest and delivered both from one device. See Primary and backup internet with no antenna on the roof.
A simple checklist
- Map the physical path of every existing circuit into the building.
- Add at least one connection on a different technology.
- Survey signal for the backup before you buy hardware.
- Test failover on purpose, during business hours, before you need it.
- Monitor both links so you know the backup is healthy before the primary fails.
Common questions
Is a cellular backup fast enough to run the business?
For most locations it carries point of sale, phones and core cloud apps comfortably. A survey confirms what each site can expect.
How often should failover be tested?
At least quarterly, and after any change to the network. Monitoring should also confirm the backup link is up every day.
Want a backup that actually stands apart?
One team to survey, install and support every site, on your timeline.