My Fiber Is Slow: Step-by-Step Diagnosis and Solutions
By Carla Serra ·
Is your fiber running slow? The most common cause isn’t the connection itself, but the Wi-Fi, an overloaded device or a loose cable. With a few simple checks you can find the problem in minutes and get back your full Floutel symmetrical fiber speed. We’ll walk you through it step by step, no technical jargon.
Before you start: is it a general problem or just one device?
The first step is figuring out where the bottleneck is. If only one device is slow, the problem is almost always with that device or its Wi-Fi connection. If everything is slow at once, it’s worth checking the router and the installation. Ask yourself:
- Is it slow on every device or just one?
- Does it happen on Wi-Fi and also over cable, or only wirelessly?
- Does it happen all the time or only at certain times of day?
- Did it start after moving the router, installing something, or a storm?
These answers will help you go straight to the right solution in the steps below.
Step-by-step diagnosis
Follow this order. Most issues get resolved in the first three steps:
- 1. Restart the router. Switch it off, wait 30 seconds and turn it back on. Give it a couple of minutes to stabilize before testing again.
- 2. Check the lights. Make sure the fiber or internet light is steady, usually green, and not flashing or red.
- 3. Connect a device by cable. Plug a laptop into the router with a network cable and measure the speed. This rules out whether the problem is with the Wi-Fi.
- 4. Move closer to the router. If the wired connection is fine but Wi-Fi isn’t, the problem is wireless coverage.
- 5. Turn off what you’re not using. Downloads, cloud backups or background updates use a lot of bandwidth without you noticing.
Solutions by cause
Wi-Fi signal is weak or drops out
Wi-Fi loses strength with distance and obstacles. Your router includes Wi-Fi 6, which offers more speed and better performance with several devices at once, but placement still matters:
- Place the router in a central, elevated spot, not inside a cabinet or on the floor.
- Keep it away from microwaves, cordless phone bases and other electrical appliances.
- Use the 5 GHz band when you’re nearby: it’s faster. Save 2.4 GHz for longer distances.
- If you have a large home or several floors, consider a repeater or mesh system.
Too many devices connected at once
Every phone, TV, console or camera shares the connection. Even though your fiber is symmetrical, if several devices are downloading or streaming 4K video at the same time, you’ll notice the load. Prioritize what matters and pause large downloads while you work or game.
Wired speed is also low
If you’re still getting low speeds over cable, go back to basics:
- Replace the network cable with one in good condition, category 5e or higher.
- Make sure the fiber cable isn’t bent or pinched behind a piece of furniture.
- Check that no connector is loose on the router or the fiber wall socket.
If everything checks out and the speed is still low across all devices, it’s time to let us know.
The device itself is overloaded
Sometimes the fiber is working perfectly and it’s the device itself that’s slow. A phone or computer with too many tabs open, little free memory, or an outdated system takes longer to load, and it’s easy to mistake this for a connection problem. Before assuming it’s the fiber’s fault, restart the device, close what you’re not using, and check whether it’s just as slow on another device at home.
Tips to keep your fiber running fast
A few simple habits will prevent most speed drops and help you get the most out of your symmetrical fiber:
- Restart the router every now and then: it helps it run smoothly.
- Keep your router’s and devices’ firmware updated.
- Protect your Wi-Fi with a strong password so no one else uses your connection.
- Split the devices that use the most data between the 2.4 and 5 GHz bands.
- Connect anything fixed, like the TV or your remote-work computer, by cable.
How to measure your speed properly
A poor measurement causes more confusion than help. For a reliable result:
- Test over cable whenever you can; Wi-Fi never gives you the real maximum.
- Close apps, downloads and videos before starting the test.
- Use a well-known tool and repeat the test two or three times to get an average.
- Remember your speed is symmetrical: you should see similar download and upload figures.
| Wi-Fi band | Speed | Range | Best for |
|---|---|---|---|
| 2.4 GHz | Lower | Longer | Distant rooms and smart home devices |
| 5 GHz | Higher | Shorter | Streaming, gaming and remote work near the router |
If none of this works
If you’ve followed all the steps and your fiber is still slow across every device, it could be a line issue. Don’t worry: our team can check your connection remotely and, if needed, schedule a visit. Before calling, be clear on whether the problem is general or occasional, and which lights are on on the router; it will help us solve it faster.
You can check more common questions in our FAQs or find out more about your connection on our fiber page.
Shall we talk?
At Floutel we’re based in Manresa and we like to sort things out by talking plainly. If your fiber isn’t performing as it should, call us on 900 525 523 and we’ll look into it together, step by step. We’re here to help.
