Feature · Internet Failover Protection
Sessions that survive link loss.
Most failover systems detect a failure and switch over. The switch takes time, and live sessions break in the gap. Speedify's failover protection works differently. Because every link is always active, there's nothing to switch. When one fails, traffic keeps moving on the others. Calls stay up. Uploads keep going. The user never sees it.
Benefits
ZERO INTERRUPTION
No detect. No switch. No drop.
Traditional failover loses the session during the switchover. Speedify never has to switch because the session is already running on every link. A failure just means one less path carrying it.
ALL FAILURE MODES
Brownouts, blackouts, and everything between.
Most failover systems only react to complete outages. Speedify watches every link continuously for packet loss, latency spikes, and degradation, and routes around problems before they become outages.
AUTOMATIC RECOVERY
Links rejoin when they come back.
When a downed link recovers, Speedify brings it back into the bond automatically. No reboot, no manual reconnect, no operator intervention. The recovered link starts carrying traffic again within milliseconds.
01 · The Basics
Failover without the failover step.
Traditional failover follows a sequence: detect a failure, declare the primary connection dead, switch traffic to the backup, and re-establish the session. Each step takes time. The whole sequence can take seconds, and every session running on the primary breaks during the switch. Speedify doesn't follow that sequence. Every link is active at the same time, and every session is already running across all of them.
| All links active | No switchover delay | Survives link loss | Detects degradation | Auto-rejoin on recovery | |
|---|---|---|---|---|---|
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SPEEDIFY
Channel Bonding
Every link is always active leading to instant, seamless failover.
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Traditional Failover
A primary link and one or more backups. On failure, traffic switches over and any session running on the primary breaks.
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Deep Dive · Watch
How Speedify's channel bonding technology actually works.
Walk through the protocol, the per-packet distribution model, the failover logic, and the encryption layer in one detailed explainer. The architecture and the engineering tradeoffs that make Speedify different from a load-balancer or a regular VPN.
02 · Under the Hood
How a link dies, and what happens next.
A real internet connection rarely fails cleanly. Most outages are slow degradations: a 5G tower hitting peak congestion, a Starlink dish losing satellite acquisition for a few seconds, a fiber link saturating at end of day. Speedify watches every link continuously and reacts in real time, before problems become user-visible outages.
BONDED SESSION · LINK FAILOVER · LIVE
Active link · packets in transit
Failed link · detected and removed
Bonded session endpoint
Speedify looks for failure signals, not just failure events
01
Round-trip time spikes
If a link's RTT suddenly increases, Speedify reduces its share of the load immediately. The link stays in the bond, it just carries less while it's slow.
02
Packet loss
Bursts of packet loss trigger a reduction on that path. In Redundant Mode, the path keeps getting traffic but only as redundant copies.
03
Hard failure
If a link stops responding altogether — no acks, no replies, no probes — Speedify pulls it from the bond within tens of milliseconds.
04
Recovery
When a downed link starts responding again, Speedify reintegrates it gradually. Low-priority traffic first, then full role once confirmed stable.
03 · Failure Modes
Different kinds of failures need different kinds of responses. Four scenarios that real internet connections actually experience, and what Speedify does for each.
Different traffic needs different treatment. A 50GB camera dump wants raw throughput. A live broadcast wants every packet to land. A two-way call wants the network to keep working when conditions change underneath it. Speedify exposes three modes, and the default combines the other two automatically.
MODE 01
Brownout
A link slows down or starts dropping packets but doesn't die. Traffic rebalances toward healthier links automatically. The degraded link stays in the bond with less weight. When it recovers, its share goes back up.
EXAMPLE
A 5G tower hits peak hour. Cellular throughput drops from 100 Mbps to 12 Mbps. Speedify rebalances within milliseconds.
MODE 02
Blackout
A link goes completely silent. No replies, no acks, no signal. Speedify detects the silence within tens of milliseconds and removes the link from the bond. Sessions continue on the others without interruption.
EXAMPLE
A Starlink dish loses sky view going through a tunnel. The link goes dark. Speedify routes everything through cellular and Wi-Fi until the dish reacquires.
MODE 03
Flapping
A link is intermittently up and down. Most failover systems thrash, switching back and forth and breaking sessions on every transition. Speedify treats unstable links as low-weight bond members, using them only when they're genuinely up.
EXAMPLE
A cellular modem on a moving vehicle bouncing between towers. Speedify uses it during stable windows and sets it aside during transitions.
MODE 04
Handoff
A link is mid-transition between sources: Starlink between satellites, cellular between towers, vessels between dock and harbor Wi-Fi. Speedify treats handoffs as brownouts. Other links carry the traffic during the transition, the handoff link re-engages when it's done.
EXAMPLE
Starlink satellite handoff every ~15 seconds. Each handoff causes a brief loss spike. Speedify's other links carry the traffic transparently.
04 · Deployment
Where Speedify installs.
Failover protection is a core behavior of Speedify's channel bonding technology. Wherever Speedify is installed, failover protection comes with it - whether thats an individual device, or a router that handles every device behind it.
A · Device Level
Run Speedify as an app.
Install the Speedify app on Windows, macOS, Linux, iOS, or Android. The device bonds whatever connections are attached to it: built-in Wi-Fi, Ethernet, cellular, USB tethering, additional adapters. Every device manages its own bonding.
Licensing
For businesses, this is provided through a Speedify Teams subscription, which centralizes billing, user provisioning, permissions, and usage analytics across your organization.
Best For
Mobile workforces, livestream and creator rigs, individual workstations with multiple WAN sources, single-user remote setups.
B · Network Level
Run Speedify on a router.
Run Speedify on a supported router and every device on the LAN gets bonding and failover automatically, with no per-device install.
Licensing
Network-level deployment is licensed via Speedify for Routers, available two ways:
Speedify for Routers
Add Speedify to a supported OpenWrt router you already own.
Powered by Speedify routers
Hardware with Speedify preinstalled and licensed out of the box. Miri, GL.iNET, and other partners.
Best For
Offices, retail locations, vessels, aircraft, remote sites, and any deployment with multiple users or unmanaged devices.
Note
Many businesses run both at once. A router covers everyone in the building. The app travels with people who leave it. For OEMs and software vendors, Speedify's channel bonding can also be licensed as an SDK that embeds into your own iOS, Android, Windows, macOS, or Linux product. See Powered by Speedify.
04 · In production
Where Speedify's failover protection earns its keep.
Failover matters most where a dropped session has consequences. Live broadcasts that can't go dark. Vessels with no second route to the satellite. Field teams whose tools have to keep working when the network doesn't. A short list of where it's already running.
Spotlight
Speedify + Starlink
Bond multiple Starlink dishes — plus cellular and any wired link — into one resilient network that survives obstructions, satellite handoffs, and weather. Built for vessels, aircraft, remote sites, and live broadcast.
Learn more →
BONDED THROUGHPUT · LIVE
DISH 01
142 Mbps
DISH 02
128 Mbps
5G LTE
87 Mbps
BONDED TOTAL
357 Mbps
Maritime
Vessels, yachts, and offshore platforms
Whole-vessel bonded networks that survive obstructions, satellite handoffs, and the dock-to-open-water transition. The session never resets when the link does.
Learn more →
Aviation
Inflight Wi-Fi that doesn't drop
Satellite handoffs and altitude transitions cause regular link issues at cruising altitude. Bonded failover makes them invisible to passengers and crew.
Learn more →
Remote Operations
Mining, oil & gas, construction, defense
Whole-site bonded coverage with mobile and vehicular deployments, fully managed at the network edge for enterprise-grade reliability anywhere.
Learn more →
Live Broadcast
Field, sports, and breaking news
A dropped frame on air is a dropped frame too many. Bonded redundancy with LiveU, TVU, Dejero, and Haivision keeps the broadcast going through any link failure.
Learn more →
Get in touch with Speedify
Get in touch today to discuss your business’s needs and discover how Speedify can help deliver, faster, more reliable, and more secure online experiences.