Work
The deadline backup path
A backup that has never been turned on is décor. A backup that was tested on Sunday is a product.
12 min read · Work
Home workers buy speed when they meant to buy boredom: a second path that works when the first one does not. The industry is happy to sell a faster first path. A 4G router in a drawer looks unglamorous next to a 2.2 Gbit poster. On the morning the ONT dies and a client is waiting, glamour is a red PON light. Boredom is a SIM that still has data.
What good looks like
A labelled box: router, PSU, SIM, login, a date you last tested. A speed that can carry the VPN and a call. A family rule that the TV does not join that SSID.
Optional: dual-WAN so it happens without you. Optional is how kits rot. If you will not configure failover, a drawer you will actually open is better.
Test it like a fire drill
Once a month, unplug the ONT, join the backup, open the VPN, join a call, send the file. Ten minutes. Write the date on the box.
If the SIM has expired, the backup was a story. If the mast is busy at 9:00, know that before a deadline, and keep a second operator’s SIM if you must.
Do not double your single point of failure
If the main line is already 5G home, a 4G backup on the same mast is a costume. Then you want a different operator, a dish, or a remaining copper as the boring spare.
Wired main plus radio spare is the classic. Radio main plus wired spare is also a classic, if the spare still exists.
| Kit | Good for | Fails if |
|---|---|---|
| Phone hotspot | Rare emergencies | MFA + call + battery + the TV joins |
| Dedicated 4G router | Deadlines | You never tested; same mast as main |
| Second FTTP plant | Luxury / small office | You skip the cheap insurance while you wait to feel rich |
Speed is a brag. A second path is a job.
The backup path is part of the work-from-home spec, next to the chair and the upload. Buy it ugly. Test it often.
Questions
- Is a phone hotspot enough?
- For a rare evening, yes. For a monthly filing deadline, a dedicated router with an antenna is calmer, and it does not flatten the phone you need for MFA.
- Will the work VPN allow 4G?
- Usually. Some allow-lists are picky. Test the VPN on the backup before the deadline, not on it.
- Same mobile network as my phone?
- Fine for most. If the local mast is the risk, a SIM from a different operator can be the whole point.
- How much data?
- A deadline day is not a 4K festival. A modest cap is enough if you remember to stop the smart TV riding the failover.
- Should the backup be FTTP from a second plant?
- If you have two plants and money, luxury. For most households, radio backup on a wired main is the rational pair.
Sources
- NCSC small-office backup connectivity notes
- Ofcom mobile coverage maps (as a hint, not a promise)
- Typical dual-WAN consumer router manuals
Figures move. Prices, coverage and eligibility must be confirmed with the provider. OneTouchSwitch is not Ofcom, TOTSCo or a broadband network. Last fact-checked 10 September 2026.
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