How to reduce Wi-Fi internet speed on a Rostelecom router: a step-by-step guide

Why would anyone specifically reduce internet speed Over Wi-Fi? There could be several reasons: from the desire to save data on an unlimited plan to the need to restrict network access for specific devices (for example, children's gadgets or guest connections). Rostelecom provides subscribers with routers with extensive network management capabilities, but not all users know how to properly configure restrictions without affecting their primary devices.

In this article we will look at 7 working methodsHow to reduce Wi-Fi speed on Rostelecom equipment - from simple methods in the router's web interface to advanced settings via TelnetYou will learn how to limit the speed for a specific device, configure QoS (Quality of Service) for traffic prioritization, as well as potential pitfalls when changing network parameters. All instructions are adapted for popular Rostelecom router models: Sagemcom [Fast] 5365, Sercomm RV6699, Huawei HG8245H and others.

Important: Before making changes to your router settings Write down your current network settings (Wi-Fi name, password, encryption type) - this will help you quickly restore access if something goes wrongAlso note that some methods (such as MAC address restrictions) may be reset after rebooting the router or updating the firmware.

1. Speed limitation through parental controls

The easiest way to reduce internet speed for individual devices is to use the built-in parental controlThis method is suitable if you need to restrict access for children, guests, or secondary devices (such as smart speakers or IP cameras).

Instructions for routers Sagemcom And Sercomm:

Open your browser and type in the address bar 192.168.1.1 (or 192.168.0.1, if the first address does not work).
Enter your login and password (usually by default admin/admin or indicated on the router sticker).
Go to the section Parental control (Parent Control) or Device management.
Select a device from the list of connected ones or add it manually by MAC address.
Set a time and/or speed limit (e.g. 5 Mbps for loading).
Save the settings and reboot the router.

⚠️ Attention: On some models of Rostelecom routers (for example, Huawei HG8245H) Parental controls may be absent. In this case, use the alternative methods in the following sections.

Write down the MAC addresses of the target devices|Check the current internet speed (for example, via speedtest.net)|Create a backup copy of the router settings|Make sure the latest firmware is installed on the router-->

2. Configuring QoS (Quality of Service) for traffic prioritization

QoS (Quality of Service) — is a technology that allows you to distribute network bandwidth between devices or traffic types. It can not only reduce the speed for some devices but also ensure a stable connection for others (for example, a work laptop or Smart TV).

How to configure QoS on a Rostelecom router:

📱 Step 1. Go to the router's web interface and find the section QoS or Bandwidth management (Bandwidth Control).
📊 Step 2. Enable QoS and specify total throughput your tariff (for example, 100 Mbps).
🔄 Step 3. Select the distribution rule:
- By MAC address — restriction for specific devices;
- By ports — traffic prioritization (for example, for online games or video calls);
- By IP address - if you have static IP addresses on your local network.
⚡ Step 4. Set speed limits for selected devices (eg. 10 Mbps for loading and 5 Mbps for return).

Example of setting up a router Sercomm RV6699:

Menu path: Advanced Setup → QoS → Add Rule Parameters: - Rule Name: Limit_Guest - MAC Address: 00:1A:2B:3C:4D:5E (target device address) - Max Download: 5 Mbps

- Max Upload: 2 Mbps

3. MAC address speed limitation

If parental controls and QoS are not suitable, you can limit the speed directly by MAC address devices. This method works on most Rostelecom routers, including Sagemcom [Fast] 5365 And ZTE H298N.

Step-by-step instructions:

Find out MAC address target device:
- On Windows: Run the command ipconfig /all in the command line.
- On Android: Go to Settings → About phone → Status.
- On iOS: Settings → Wi-Fi → (i) next to the network name.

In the router's web interface, go to Local Network → DHCP → Address Reservation.

Add a new rule by binding the MAC address to a fixed IP (e.g. 192.168.1.100).

In the section Bandwidth management (Bandwidth Control) create a rule for this IP with speed limitation.

Router model	Path to MAC filter settings	Max. number of rules
Sagemcom [Fast] 5365	`Home Network → MAC Filter`	10
Sercomm RV6699	`Advanced → Security → MAC Filter`	16
Huawei HG8245H	`LAN → MAC Address Binding`	8
ZTE H298N	`Network → LAN → MAC Filter`	12

⚠️ Attention: MAC address restrictions may be reset after updating your router firmware. To avoid this, export your settings to a backup file (System Tools → Backup).

4. Creating a guest network with limited speed

If you need to reduce the internet speed for temporary users (guests, tenants), the optimal solution is to set up guest network with a separate SSID and restrictions. This method doesn't affect the main network and is easy to set up.

How to create a guest network on a Rostelecom router:

🔗 Step 1. Go to the web interface and find the section Guest network (Guest Network) or Additional Wi-Fi network.
📶 Step 2. Enable the guest network and give it a unique name (for example, MyWiFi_Guest).
🔒 Step 3. Set a password (it is recommended to use WPA2-PSK).
⚡ Step 4. In the guest network settings, find the option Speed Limit (Bandwidth Limit) and set the desired values (for example, 10 Mbps).
🕒 Step 5. If necessary, add a time limit (for example, with 9:00 to 21:00).

Benefits of a guest network:

🔄 Isolation from the main network (guests will not see your devices on the local network).
🛡️ Possibility to configure separately DNS filtering (for example, block access to social networks).
📊 Easily track your guests' traffic consumption.

What happens if you don't limit the guest network?

Without restrictions, guests can consume your entire internet bandwidth, which will slow down your devices. For example, if a guest starts downloading torrents or updating games, the speed on your TV or laptop will drop to a crawl. Furthermore, an open guest network without a password can attract unwanted users (such as neighbors), creating additional strain.

5. Using third-party software to limit speed

If the built-in functions of the router do not allow you to flexibly configure restrictions, you can use third-party programs On a computer or using special firmware for your router. This method is suitable for advanced users.

6. Limiting the speed via PPPoE settings (for advanced users)

This method is suitable if your router connects to the Internet via PPPoE (most often used in Rostelecom plans with dynamic IP). The idea is to artificially limit the speed at the connection level.

Instructions:

Go to the router's web interface and go to Network → WAN (or Internet).
Find the settings PPPoE-connections and open additional options.
In the field MTU (Maximum Transmission Unit) set the value 1400 (by default usually 1500). This will slightly reduce the speed due to the increase in service traffic.
Some firmwares have an option Limit Rate - set the desired limit there (for example, 50 Mbps).
Save the settings and reboot the router.

⚠️ Attention: Changing parameters MTU This may cause connection issues with some websites or services (such as online banking). If your internet connection becomes unstable after making these changes, please revert the value. MTU to the original (1500).

7. Alternative methods: tariff options and contacting support

If you need to reduce your internet speed on a permanent basis (for example, to save on your plan), consider the following options:

📉 Change of tariff. Contact Rostelecom support and request a downgrade to a lower-speed plan. This is especially true if you're paying for a high-speed unlimited plan but only using a portion of the bandwidth.
📡 Restriction from the provider. Some operators (including Rostelecom) allow temporary speed reductions upon subscriber request. Please check with a manager by phone. 8-800-100-08-00.
🔄 Using mobile internet. If you need low speed for a specific device (such as a tablet), connect it to a mobile network (3G/4G) instead of Wi-Fi.

⚠️ Attention: When changing your plan, check the terms of your contract. Some promotions or bonuses (such as free months or cashback) may expire when you switch to a different plan.

FAQ: Frequently asked questions about Wi-Fi speed limiting

Is it possible to limit the speed only for certain websites (like YouTube or TikTok)?

Yes, but not through the router's default settings. You'll need:

Install alternative firmware on the router (for example, OpenWRT) with support DNS filtering.
Or use specialized software on your computer (for example, Cold Turkey or Freedom), which blocks access to websites on a schedule.

Limit the speed only for a specific site It's impossible to do without blocking - you can only reduce the overall speed of your device or block the site completely.

Why do some devices not connect to Wi-Fi at all after limiting speed via QoS?

This can happen for several reasons:

Too strict a restriction (for example, 1 Mbps) does not allow the device to complete the connection procedure.
IP address conflict if you linked the device by MAC, but its IP has changed.
Error in QoS settings (for example, traffic priority is specified incorrectly).

Solution: Increase the speed limit to 5–10 Mbps or check that the device is receiving the correct IP (in the section DHCP).

How do I find out who is using all the internet on my network?

To identify the "culprit" of high load:

Go to the router's web interface and open the section Traffic statistics or Devices.
See which device is consuming the most data (usually shown in MB/h).
Use network analyzer programs on your computer: Wireshark (advanced level) or GlassWire (for beginners).

On routers Sagemcom traffic statistics are in Status → Local Network → Device Statistics.

Is it possible to limit the speed for devices connected via cable (LAN)?

Yes, all the methods in this article (QoS, MAC/IP restrictions, parental controls) also work for wired connections. The main thing is to correctly identify the device:

For QoS select a rule by IP or MAC.
For parental control Add the device manually by specifying its MAC address.

Please note: Some routers only allow you to limit the speed for Wi-Fi, and LAN requires configuration. VLAN or Port-Based QoS.

Will my settings be reset after updating my router firmware?

It depends on the router model and update type:

Soft update (via web interface) usually saves settings.
Hard update (via recovery mode) resets the router to factory settings.

Recommendation: Before updating, export your settings to a file (System Tools → Backup) and save it on your computer.

How to reduce Wi-Fi internet speed on a Rostelecom router: a step-by-step guide

1. Speed ​​limitation through parental controls

2. Configuring QoS (Quality of Service) for traffic prioritization

3. MAC address speed limitation

4. Creating a guest network with limited speed

5. Using third-party software to limit speed

6. Limiting the speed via PPPoE settings (for advanced users)

7. Alternative methods: tariff options and contacting support

FAQ: Frequently asked questions about Wi-Fi speed limiting

📖 Read also

1. Speed limitation through parental controls