Starlink Mini as a failover

Original Article ↗ Hacker News Discussion ↗

Starlink Mini’s new low-cost “standby” plan is being evaluated as a backup internet option for homes and remote sites, offering always-on 500 kbit/s connectivity that can be upgraded briefly to full bandwidth when primary links fail. Commenters weigh it against 4G/5G and secondary wired connections, noting trade-offs in price, power use, weather sensitivity, and dependence on local infrastructure that can fail in storms or power cuts. Many conclude satellite is most compelling where mobile coverage is poor or regional outages frequently take down both fixed and cellular networks.

Starlink Mini standby & use cases

  • Standby mode offers ~500 kbit/s unlimited; commenters say this is enough for:
    • Periodic photo uploads from remote cameras.
    • Low‑res security video where most of the frame is static.
    • Basic web browsing during outages.
  • Several people use Starlink (Mini or full dish) as home failover; report quick manual or automatic switchover, good speeds (200–350 Mbps), and reliability comparable or superior to their ISP.
  • Some note rain can cause brief slowdowns or outages; others say only very heavy storms affect it. Cloud cover alone generally not a problem, though there is disagreement.
  • One concern: talk of needing to activate full‑speed service at least once per year or pay extra, which would reduce the attractiveness of standby; details are unclear.

Cellular vs satellite failover

  • Many argue 4G/5G backup is:
    • Much cheaper (cheap dongles/routers, low‑cost SIMs, ISP‑bundled 4G backup).
    • More power‑efficient and simpler to integrate.
  • Counterpoints:
    • Mobile coverage and throughput are highly location‑dependent; some urban and rural users find it unusable.
    • When grid power or a primary ISP fails, nearby cell towers can lose power or become congested, making mobile backup ineffective.
    • Starlink is valued because its failure mode is more independent of local infrastructure, especially for multi‑day outages.

Routers, multi‑WAN, and network setups

  • UniFi gear is frequently mentioned for dual‑WAN and automatic failover; some see it as polished but expensive “prosumer” gear, and argue any Linux box or cheaper routers (Mikrotik, TP‑Link, GL.iNet, EdgeRouter, etc.) can handle multi‑WAN.
  • Some users combine:
    • Fiber/DOCSIS + Starlink + 4G/5G in various priority chains.
    • Mesh setups across locations using WireGuard/Headscale.

Reliability, redundancy, and physical infrastructure

  • Experiences range from near‑“five nines” FTTP/FTTC with almost no downtime to very flaky DOCSIS or mobile.
  • Multiple wired ISPs can still share the same physical route; one incident took out two “independent” fiber connections at once.
  • In storms and extended outages, local water plants, cell towers, and cabinets can lose power after their batteries/generators deplete; Starlink plus local UPS is seen as strong mitigation.

IPv6 and technical quirks

  • Starlink can provide public IPv6 prefixes (e.g., /56), but configuration on some routers requires SLAAC rather than DHCPv6; this confuses some and fuels complaints about IPv6 complexity and tooling.
  • A side thread explains how mobile carriers may detect and throttle tethering via packet TTL, and how users adjust TTL on routers to evade this; effectiveness is acknowledged as carrier‑dependent.