🚀 Starlink + ISP Failover Setup: A Beginner’s Guide to Bulletproof Internet at Home

Imagine you're in the middle of an important Zoom call — and suddenly your internet cuts out. Your heart skips a beat. That dreaded buffering circle spins on the screen. You're disconnected.

Now imagine instead: the internet switches seamlessly to a backup connection. Your meeting continues without a glitch.

That’s the power of failover internet. In this guide, I’ll show you how I used Starlink as primary internet and a local ISP via PPPoE as backup, with the help of a MikroTik router — and how you can do the same.

Whether you work from home, stream content, or run a smart home — this setup adds peace of mind and productivity.

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🧰 Hardware I Used

• MikroTik hEX S (RB760iGS) — compact and powerful router

• TP-Link Deco M4 Mesh (3 units) — for strong Wi-Fi across the house

• Windows PC — for initial configuration

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⚙️ The Big Picture

We’ll configure:

• Starlink (ether1) as the main internet (DHCP)

• Local ISP (ether2) using PPPoE as backup

• Failover logic so the router automatically switches when Starlink fails

• LAN setup with DHCP + NAT

• Optional: MAC spoofing, DNS, and firewall basics

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🪜 Step-by-Step Setup (Beginner Friendly)

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🔌 Step 1: Connect to Your MikroTik Router

1. Plug your Windows PC into ether2–ether5 on the MikroTik router (avoid ether1 — that’s for internet input).

2. On Windows, open ncpa.cpl, select your Ethernet adapter > Properties > TCP/IPv4 → Set to “Obtain IP automatically”.

3. Your PC should get an IP like 192.168.88.x.

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💻 Step 2: Login to MikroTik via Winbox

1. Download Winbox from: mikrotik.com/download

2. Open it — no install needed.

3. Look under the Neighbors tab — you’ll see your router’s MAC and IP (192.168.88.1)

4. Connect using:

   • Username: admin

   • Password: (Check router label or leave blank for first login)

5. Click Connect

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🔧 Step 3: Initial Router Setup

1. Change the admin password

   • Go to: System > Users > admin > Set Password

2. Update RouterOS

   • Go to: System > Packages > Check for Updates > Download & Install

   • Channel: stable

Router will reboot. Reconnect after that.

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🌐 WAN Configuration

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🔌 Step 4: Connect WAN Sources

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🚀 Step 5: Set Starlink as Primary WAN

1. Go to IP > DHCP Client

2. Click +

3. Set Interface to ether1

4. Click Apply and **OK`

✅ Starlink will now get a dynamic IP as your primary internet.

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🌍 Step 6: Set Up ISP as Backup via PPPoE

1. Go to Interfaces > + > PPPoE Client

2. Set:

   • Name: pppoe-out1

   • Interface: ether2

3. In Dial Out tab:

   • Username: your-pppoe-username

   • Password: your-password

   • Enable: Add Default Route

   • Set Default Route Distance: 2

4. Apply and OK

✅ This ensures PPPoE acts as a failover connection (lower priority than Starlink).

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📶 Step 7: LAN Setup (Home Devices)

1. Go to Bridge > Add New Bridge

2. Add ether3 to ether5 to the bridge

3. Go to IP > DHCP Server > Setup

   • Choose bridge as interface

   • Set default IP range (e.g., 192.168.88.0/24)

4. Go to IP > Firewall > NAT

   • Add masquerade rules for:

     • • Out Interface: ether1 → Action: masquerade

         • Out Interface: pppoe-out1 → Action: masquerade

✅ Now all LAN devices can share internet via both connections.

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🧠 Step 8: Failover in Action

Go to IP > Routes — you should see:

• Starlink → distance 1

• PPPoE → distance 2

If Starlink fails, MikroTik auto-switches to the PPPoE route.

💡 Warm failover: It’s fast, not instant. No downtime for most tasks (buffering may happen once).

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🧪 Advanced Tips (Optional but Useful)

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🔄 Script-Based Netwatch (For Active Failover)

If you want faster detection, set up Netwatch:

• Go to Tools > Netwatch

• Monitor a reliable IP (e.g., 8.8.8.8)

• On Down, disable Starlink route

• On Up, re-enable it

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🧙 Spoof MAC Address (If ISP Locks It)

Some ISPs only allow internet on registered MACs.

To clone MAC on ether2:

/interface ethernet set ether2 mac-address=XX:XX:XX:XX:XX:XX

Then confirm under Interfaces > ether2

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🌐 Setup DNS

1. Go to IP > DNS

2. Add:

   • 8.8.8.8 (Google)

   • 1.1.1.1 (Cloudflare)

3. Enable Allow Remote Requests

✅ This helps your LAN devices resolve domains via MikroTik.

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🎉 You Did It!

You now have a smart home internet setup with:

✅ Primary internet from Starlink
✅ Automatic failover to ISP (PPPoE)
✅ Seamless recovery when Starlink is back
✅ Stable internet for work, video calls, gaming, and streaming

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👨‍💻 Real Life Example: Why I Needed This

I live in a semi-urban area where power cuts or weather often interrupt traditional ISP service. Starlink provides excellent uptime — but even satellite can sometimes drop.

Thanks to this setup, when Starlink stutters, my MikroTik router quietly shifts over to my ISP. I keep working, the Netflix show doesn’t stop, and my smart lights stay responsive.

It’s like having internet insurance — and it’s worth every minute of setup.

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🧭 What’s Next?

Now that you're comfortable with MikroTik basics, you can explore:

• 🔐 Firewall rules

• 🎛️ Bandwidth control

• 🧅 VPN access to your home

• 🧰 Remote monitoring and management

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💬 Questions or Feedback?

Drop a comment below if you run into any issues or want me to cover more advanced MikroTik topics. Happy networking!