If your internet is not working, keeps disconnecting, or the LOS/PON lights behave abnormally, the problem could be either in the router, the fiber cable, or the ONT (fiber box).
Here’s how you can quickly identify which part is causing the issue — and fix it faster.
⚙️ 1️⃣ Understand the Components
| Device | Function |
|---|---|
| ONT (Optical Network Terminal) | Converts fiber signal from Mahek Broadband into LAN connection for your router. |
| Router | Distributes that internet connection to your devices via Wi-Fi or LAN. |
| Fiber Cable | Connects your ONT to the Mahek Broadband network. |
When internet stops working, one of these three is usually responsible.
🧩 2️⃣ Step-by-Step Diagnosis
🔹 Step 1: Check the ONT (Fiber Box) Lights
Look closely at the indicator lights on your ONT:
| Light | Normal | Indicates Problem |
|---|---|---|
| Power | Solid Green | Off / Flickering → Power issue |
| PON | Solid Green | Off → No network link |
| LOS | Off | Blinking Red → Fiber cut or disconnection |
| LAN | Blinking | Off → Router not receiving data |
👉 If LOS is blinking red, the problem is with the fiber cable or network line, not your router.
🔹 Step 2: Test the Connection via LAN Cable
- Take a LAN cable and connect it directly from your ONT LAN port to your laptop or PC (bypassing the router).
- Go to speedtest.mahekbroadband.in.
Result 1:
✅ Internet works fine → Problem is in your router.
Result 2:
❌ No internet → Problem is in ONT, fiber cable, or Mahek network line.
🔹 Step 3: Restart the Devices in Order
- Turn off both ONT and router.
- Wait 30 seconds.
- Turn ON the ONT first. Wait till PON becomes stable.
- Then turn ON the router.
If internet returns, it was likely a temporary sync issue.
If not, continue below.
🔹 Step 4: Check the Router Lights
- Power light blinking or off? → Adapter or socket issue.
- Internet light blinking orange/red? → PPPoE configuration problem.
- Wi-Fi light on but no internet? → Router working, but no data from ONT.
If router lights look fine but devices still show “Connected without Internet,” the fault is likely in the ONT or cable.
🔹 Step 5: Inspect the Fiber Cable
Carefully examine the thin white fiber cable that connects to your ONT:
- Ensure it’s not bent, twisted, or damaged.
- Check if the connector clicks securely into the ONT port.
- Do not unplug unless necessary — fiber ends are extremely delicate.
If damaged, our technician must replace it; do not attempt manual repair.
🧰 3️⃣ Common Scenarios & Causes
| Symptom | Likely Issue | Solution |
|---|---|---|
| LOS blinking red | Fiber cable cut / disconnected | Contact Mahek Support |
| PON light off | ONT not linked to network | Reboot ONT / call support |
| Router on but no internet | PPPoE login expired / misconfigured | Re-enter username/password |
| Router reboots often | Power adapter or hardware fault | Replace router or adapter |
| Internet works only via LAN | Wi-Fi issue in router | Reconfigure or replace router |
⚙️ 4️⃣ When to Contact Support
Call us if:
- LOS light keeps blinking red.
- Internet doesn’t work even when directly connected to ONT.
- Router shows all lights normal but no browsing works.
- You suspect fiber cut or local outage in your area.
📞 022 697 18061
✉ support@mahekbroadband.in
📍 Shop No. 02, Balkrishna Apt, Musaji Galli Road, Vasai West – 401201
Our technician can remotely test your ONT signal and visit if physical line repair is needed.
💡 Quick Tips
✅ Always check ONT lights first before troubleshooting router.
✅ Use good-quality CAT6 LAN cables for accurate testing.
✅ Don’t bend fiber cables — even slight pressure affects signal.
✅ Restart both ONT and router weekly to prevent sync drops.
