Step 1: Quick diagnosis — How do you know if your internet is actually slow?
Before you change anything, you need to measure the baseline. Otherwise, you'll have no idea if your changes worked.
Run an internet speed test
1. Connect with a cable to the router (if possible) — WiFi alone can slow things down
2. Close all other applications — background updates can distort the results
3. Run an internet speed test — measure download speed, upload speed, and ping
4. Repeat three times, at different times of day (morning, evening, weekend)
Important: Write down the results! You'll compare these later to see improvement.
Router restart — the simplest quick fix
A router is like a computer: after long uptime, it slows down, its memory fills up, and its connections degrade. A simple restart (unplug for 30 seconds) solves many problems:
- Intermittent connection issues disappear
- The DNS cache refreshes
- The router can connect to the provider on a new channel
Tip: If you need to restart the router several times a week, it indicates a hardware problem — see step 6.
Checking signal quality
If you use WiFi, check the signal strength near the router and in the problematic room. A free WiFi analyzer app (e.g., WiFi Analyzer for Android, NetSpot for Windows) will show:
- Signal strength in dBm (-50 dBm or better is excellent, below -70 dBm is weak)
- Channels used by neighboring networks
- The level of interference
If the signal is weak, optimizing router settings is the first step — but first, let's look at the big picture.
Step 2: Test the weak link — cable vs. WiFi
Before diving into anything, find out: is WiFi the bottleneck, or is it the internet connection itself?
How to test
Connect your laptop with an Ethernet cable directly to the router
Run a speed test
3. Compare with the result measured on WiFi
What does the result tell you?
| Result | Conclusion |
|---|---|
| Fast on cable, slow on WiFi | **WiFi is the problem** — read step 3 |
| Slow on cable too | There's an issue with your **internet connection** — read steps 4 and 8 |
| Both are fast, but sometimes slow down | **Intermittent load** or background processes — read step 5 |
When is it worth using a cable?
The Ethernet cable is always faster, more stable, and more secure, than WiFi. Especially in these cases:
- Desktop computer or game console — if it's in a fixed location, there's no point in using WiFi
- Online gaming — ping is lower and more stable over cable
- 4K/8K streaming — bandwidth fluctuations can be eliminated
- Home office, video calls — interruptions disappear
A Cat5e cable already supports 1 Gbps, and Cat6 up to 10 Gbps. A 10-meter patch cable costs 2-3 thousand forints — cheaper than a new router.
Step 3: Router optimization — the most common speed-up option
If WiFi is the weak point (and it is in most households), then this is where the greatest potential for increasing internet speed. lies. Our detailed router guide covers all settings — here we provide a practical summary.
The 4 most important router settings
Enable the 5 GHz band
Most modern routers are dual-band. 5 GHz is faster and less congested than 2.4 GHz. If your router supports band steering function, enable it — devices will automatically connect to the appropriate band.
- 4 GHz: better penetration through walls, but slower (50-100 Mbps in practice)
- 5 GHz: faster (up to 500+ Mbps), but shorter range
Choose an optimal WiFi channel
On the 2.4 GHz band, there are only 3 non-overlapping channels (1, 6, 11). On 5 GHz, there are 20+. Use a WiFi analyzer to see which channels are least congested in your area, and switch manually.
Enable QoS (Quality of Service)
The QoS setting allows you to prioritize important traffic. If you work from home and the kids are on Netflix, QoS ensures your Teams call gets priority over the 4K stream.
Relocate the router
The router's position matters a lot. Place it as centrally as possible, high up (on a shelf or wall), away from metal objects and the microwave.
Step 4: Software optimization — what's built into your computer
Bandwidth isn't only consumed by other family members' devices — your own computer can also use a lot without you noticing.
Windows 10/11 settings
Enable Metered Connection
In Windows 10/11, go to Settings > Network & internet > WiFi > known networks and enable the „Metered connection” option. This prevents Windows from automatically downloading large updates in the background.
Limit update bandwidth
Windows 11: Settings > Windows Update > Advanced options > Delivery Optimization. Here you can limit how much bandwidth Windows can use for background updates.
Check background applications
Open Task Manager (Ctrl+Shift+Esc), go to the „Performance” tab, then click on „Network” monitoring. Here you can see which applications are consuming the most bandwidth. Common culprits:
- Steam / Epic Games — game updates in the background
- OneDrive / Google Drive / iCloud — file synchronization
- Antivirus — definition updates
- uTorrent / BitTorrent — unintentional uploading
For gaming platforms, set an update window (e.g., only between 11 PM and 7 AM).
Browser optimization
- Clear the cache — too old cache can slow down the browser
- Disable unused extensions — ad blockers and extensions all consume resources
- Use hardware acceleration — enable hardware acceleration in your browser settings
Advanced: Optimize MTU settings
The MTU (Maximum Transmission Unit) determines the maximum packet size for data transmission. The default MTU value in Windows is 1500, but for some providers (especially with PPPoE connections, e.g., Telekom), 1492 or 1480 may offer better performance. If you frequently encounter the error „visited website does not load properly,” try setting the MTU to 1480.
netsh interface ipv4 show subinterfacesWarning: Only change the MTU if you have a specific problem (slow page loading, connection errors). Otherwise, leave it at the default setting.
Step 5: Hardware upgrade — When is it worth spending?
If software optimization and router settings haven't brought improvement, the hardware might be the bottleneck.
When do you need a new router?
- Your router is more than 4-5 years old
- Only supports WiFi 4 (802.11n) standard
- Frequently overheats or needs to be restarted
- Cannot handle the load — if 8+ devices connect simultaneously, it slows down
- No 5 GHz band or does not support QoS
What should you buy?
| Router type | Price range | Recommended for |
|---|---|---|
| WiFi 6 (802.11ax) | 25,000-50,000 HUF | Average household, 5-10 devices |
| WiFi 6E | 50,000-80,000 HUF | Multiple devices, utilizing the 6 GHz band |
| WiFi 7 | 80,000-150,000 HUF | Early adopters, 10+ devices, 2+ Gbps connection |
| Mesh system (e.g., TP-Link Deco, Google Nest) | 40,000-100,000 HUF | Multi-story house, large apartment |
Network card upgrade
If your computer connects via WiFi but the router is already WiFi 6, an old WiFi card (WiFi 4 or 5) can be a bottleneck. A USB WiFi 6 adapter for 8,000-15,000 forints can solve the problem.
Modem vs. router — what's the difference?
Many people confuse the two. The modem connects to the service provider's network (cable, fiber optic, or DSL), the router creates your own network. If the device provided by the service provider is a combination (modem+router in one), you can request a separate modem from them and use your own router — this often provides better performance.
Step 6: Increasing mobile internet speed
Mobile internet works differently than a home wired connection — speed is influenced by many external factors.
What you can do to speed up mobile internet
Check the coverage
Service providers have coverage maps (e.g., Telekom, Yettel, Vodafone). If the signal is weak at home, coverage might be better elsewhere.
Switch from 4G to 5G
If your phone and plan support 5G, it can be significantly faster — up to 3-5 times faster than 4G/LTE. However, 5G consumes more battery, so only turn it on when you really need fast internet.
Change location — the simplest solution
Mobile internet speed strongly depends on the distance from the base station and obstacles. If you go into a building and the internet slows down, try near a window or one floor up.
Check APN settings
Rare, but it can happen that your phone automatically selects the wrong APN (Access Point Name). Check in the mobile network settings that your service provider's correct APN is set.
Data Saver mode
Both Android and iPhone have a data saver mode. This doesn't slow down the internet, but limits background data traffic — which can make active usage faster.
When is it worth switching from mobile internet to home internet?
If you use mobile internet as home internet, and:
- The speed is regularly below 20 Mbps
- You use more than 100 GB of data per month
- You work from home or stream
…then home wired internet (even a cheaper 100 Mbps package) provides a more stable and faster experience.
Step 7: Service provider limitations — What you can and cannot do
There are limitations you cannot overcome at home — these are the boundaries of the service provider's network.
What you CANNOT change
- Distance from the central distribution point — with older copper cable (ADSL) connections, speed decreases the farther you are from the central point
- Evening peak network load — between 7-10 PM, the service provider's network may be more loaded
- Your subscription's speed limit — a 100 Mbps package won't become 500 Mbps by changing the router
- Technology limitations — speed difference between old cable-TV (DOCSIS 3.0) vs fiber optic (FTTH)
What you CAN do
Contact the service provider if:
- The speed is consistently below 80% of the advertised value
- Frequent disconnections or connection errors occur
- Ping is too high (above 100 ms for gaming)
Ask them to check the line from the central point to your home. If you have fiber optic, this is rarely a problem — more common with copper cable.
Request a new modem
The modem/router provided by the service provider is sometimes outdated. Many service providers (Telekom, Digi, One) offer replacement modems if you indicate you have a problem.
Check your contract
Are there data caps in your package? Some cheaper packages run under the name „unlimited,” but after a certain amount (e.g., 500 GB), they reduce the speed.
Tip: A in our download speed guide we detail the difference between service provider promises and reality.
Step 8: When to switch service providers?
If you've tried all the previous steps and your internet is still slow, it's time to consider switching.
Signs it's time to switch
- Your speed is consistently below 50% of the advertised value is
- There's no fiber optic (FTTH) option in your area, but there is on the neighboring street
- The provider can't offer a better package
- There have been multiple outages in the past month (and you didn't receive a notification)
- A comparison of Hungarian providers your provider shows the weakest results
What to consider when switching?
| Aspect | What to look for? |
|---|---|
| Technology | Fiber optic (FTTH) > Cable TV (DOCSIS 3.1) > Copper (ADSL/VDSL) |
| Speed | At least 100 Mbps download, 20 Mbps upload |
| Ping | Ping under 20 ms for gaming |
| Data cap | Truly unlimited (no fair use policy) |
| Contract | Indefinite term or 12-month minimum |
| Cancellation notice period | Max 30 days |
Steps to switch
1. Request a cancellation offer from your current provider (they often give a discount if you stay)
2. Find available providers at your address (use provider comparison sites)
3. Compare packages based on your needs
4. Watch out for „introductory prices” — the first 6-12 months are cheap, then it gets more expensive
5. Time the switch — make sure there's no gap of days without internet between the old provider disconnecting and the new one connecting
Summary — The 8-step speed-up plan
Essentially, it's a process worth going through:
| # | Step | Time required | Cost | Expected improvement |
|---|---|---|---|---|
| 1 | Quick diagnostics | 15 minutes | 0 HUF | Baseline assessment |
| 2 | Cable vs WiFi test | 10 minutes | 0 HUF | Problem identification |
| 3 | Router optimization | 30 minutes | 0 HUF | 30-50% improvement on WiFi |
| 4 | Software optimization | 20 minutes | 0 HUF | 10-20% improvement |
| 5 | Hardware upgrade | 1-2 hours | 10-80 thousand HUF | 50-200% improvement |
| 6 | Mobile internet optimization | 15 minutes | 0 HUF | Depends on location |
| 7 | Provider limitations | 30 minutes | 0 HUF | Depends on location |
| 8 | Switching providers | 1-2 weeks | 0-10 thousand HUF | Up to 500%+ improvement |
You don't have to do everything at once. Start with steps 1-2 (diagnostics), then 3-4 (free optimization). Only if these aren't enough, spend on hardware or switch providers.
Frequently asked questions
How much can I improve my internet speed with free methods?
Up to 30-50%, if the router settings weren't optimized and the software environment was messy. In most households, the biggest jump comes from steps 2 and 3.
Do WiFi signal boosters (repeaters) help?
Yes and no. Repeaters increase coverage, but they halve the bandwidth due to the relay. Better solutions: Powerline adapter (network cable over electrical wiring), Mesh system, or a long Ethernet cable.
What does „ping” mean and why is it important?
Ping is the response time in milliseconds — it shows how long it takes for a data packet to travel from your device to the server and back. It's critical for online gaming and video calls: under 20 ms is excellent, 50-100 ms is acceptable, above 100 ms the delay is noticeable.
Does a VPN slow down the internet?
Yes, usually by 10-30%, because data passes through an extra server. If you need fast internet (streaming, gaming), turn off the VPN. If you use it for privacy reasons, choose a VPN that supports the WireGuard protocol (faster than OpenVPN or the old IPsec).
When should you call a professional?
If there are still issues after the provider's line check, and you've tried the steps above. In most cases, however, the steps above are sufficient to achieve faster internet.