Direct answer
Use a dual-WAN firewall or router with application-aware health checks. Define failover thresholds, session behaviour, DNS, VPN, inbound services and return-to-primary rules, then test them.
Common business internet failover failures
- Cable is up but internet is unreachable
- DNS fails while ping still works
- VPN blocks traffic from a new public IP
- Voice calls drop and do not re-register
- Backup is online but saturated by updates or CCTV
- Router reverts too early and flaps between paths
Create and test an internet failover runbook
Name the owner, monitoring channel, test frequency, escalation contacts, backup-data limits and the action if both paths fail. A tested manual fallback can be better than poorly understood automation.
Sources
Sources checked for this page
TDRA grants Starlink a 10-year General Space Services LicenceTDRA · Checked 1 September 2026
UAE licence scope, date, sectors and complementary-network positioning
Digital Internet and Digital Premium Internete& UAE · Checked 1 September 2026
Managed business internet, redundancy and security positioning
Service Plan DescriptionsStarlink · Checked 1 September 2026
Plan eligibility, business-use restrictions, congestion and non-guaranteed performance