How to share Wi-Fi from a computer using a modem: 5 effective methods

You are connected to the Internet via USB modem (4G/5G from MTS, Beeline, Megafon, or Yota), but want to share Wi-Fi with your phone, tablet, or second computer? It's possible without buying a router—just set it up. virtual access point on your PC. In this article, we'll cover all the current methods, including hidden Windows settings, the command line, and third-party programs. We'll also explain why sharing sometimes doesn't work and how to fix it.

The main difficulty when distributing from a modem is Not all operators allow traffic broadcasting to other devices (especially if you have an unlimited data plan with restrictions). We'll show you how to check this in advance and legally bypass blocks. You'll also learn how to set up data sharing to maintain speed and avoid connection issues.

1. Check compatibility: Can you share Wi-Fi from your modem?

Before setting up data sharing, make sure your modem and plan support it. Here are the key points:

• 🔍 Modem type: USB modems Huawei E3372, ZTE MF823 or Yota Many usually support distribution, but older models (for example, Huawei E1550) - No.
• 📡 Opening hours: The modem must be in mode NDIS (like a network card), not Modem-onlyCheck in Device Manager.
• 💰 Tariff restrictionsOperators often block data sharing on unlimited plans (for example, Tele2's "Everything for Our Own"). Check the terms in your personal account.

How to check the modem mode:

1. Connect the modem to the PC.
2. Open device Manager (Win + X → Device Manager).
3. Expand the tab Network adapters.
4. If there is a device with the name of your modem (for example, Huawei Mobile Connect) - distribution is possible. If only Ports (COM & LPT) - No.

⚠️ Attention: Some modems (eg. Megaphone M150-2) automatically block distribution when connected to a PC. In this case, the only solution is to upgrade the firmware or purchase a router with a USB port.

2. Method 1: Sharing via a Mobile Hotspot (Windows 10/11)

The easiest method is a built-in Windows feature. It works on most modern PCs with a Wi-Fi adapter.

Instructions:

1. Open Settings → Network & Internet → Mobile Hotspot.
2. In the field Sharing select your modem connection (usually it is named as operator, for example MTS 4G).
3. Click Change and ask:
   • 🔑 Network name (SSID) - in Latin, without spaces.
   • 🔒 Password — minimum 8 characters, including numbers.
   • 📶 Range — choose 5 GHz, if your devices support it (less interference).

If the Mobile Hotspot button is inactive:

• 🔄 Restart your PC with the modem connected.
• 🔧 Update your Wi-Fi adapter driver (download from the manufacturer's website, not through Windows Update).
• 🚫 Check if your antivirus is blocking the distribution (disable it) Avast, Kaspersky or built-in Windows Defender during the test).

The modem is connected and is detected as a network adapter|

Wi-Fi on the PC is turned on (button on the keyboard or in Parameters)|

Wi-Fi adapter drivers updated|

Antivirus is temporarily disabled-->

3. Method 2: Command line (if the hotspot doesn't work)

If the built-in function refuses to work, use command lineThis method is universal and often solves errors like "Unable to set up mobile hotspot."

Step-by-step instructions:

1. Run Command Prompt as Administrator (Win + X → Terminal (Admin)).
2. Enter the command to create the network:

   netsh wlan set hostednetwork mode=allow ssid=MyWiFi key=12345678 keyUsage=persistent

   Replace MyWiFi to the network name, and 12345678 — to the password.

3. Activate distribution:

   netsh wlan start hostednetwork

4. Now allow internet sharing:
   • Open Control Panel → Network and Internet → Network and Sharing Center.
   • Click on your modem connection (for example, MTS 4G).
   • Select Properties → Access.
   • Check the box Allow other network users to share your Internet connection.
   • On the list Connecting a home network select the created network (usually Local Area Connection* X).

To stop seeding, use the command:

netsh wlan stop hostednetwork

⚠️ Attention: After rebooting the PC, the distribution must be restarted. To automate the process, create .bat-file with commands and add it to startup.

@echo off
netsh wlan start hostednetwork
exit

4. Method 3: Third-party programs (if Windows refuses)

If standard methods don't work, try specialized utilities. They bypass Windows restrictions and often offer additional features (such as traffic control or device blacklisting).

Top 3 proven programs:

How to set up distribution in MyPublicWiFi:

1. Download and install the program.
2. In the field Network Name (SSID) Enter the network name.
3. IN Network Key — password (minimum 8 characters).
4. IN Internet Sharing Select your modem connection.
5. Click Set up and Start Hotspot.

5. Troubleshooting: Why isn't the distribution working?

If your devices aren't connecting or your internet isn't working, check these points:

• 🔌 The modem is not detected as a network adapter.: Reinstall the modem driver in mode NDIS (download from the manufacturer's website).
• 📵 The devices connect, but there is no internet.:
  • Check if it is enabled General access in the modem connection properties.
  • Run in command line:

    netsh winsock reset

• 🔒 The operator is blocking distribution: Try changing TTL (packet lifetime) via the registry or use a VPN on the device that connects to your network.
• 🔄 Wi-Fi disconnects after 5-10 minutes: Turn it off Energy savings for Wi-Fi adapter in Device Manager.

How to change TTL (if the operator blocks distribution):

1. Open Registry Editor (Win + R → regedit).
2. Follow the path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters.
3. Create a new parameter DWORD (32-bit) with a name DefaultTTL.
4. Set the value 65 (in the decimal system).
5. Restart your PC.

⚠️ Attention: Editing the registry may cause network instability. Before editing, create a system restore point (Control Panel → Recovery → Configure System Restore).

6. Optimizing Distribution: How to Speed ​​Up Wi-Fi and Save Traffic

Sharing the Internet from a modem is often accompanied by loss of speed And increased pingHere's how to avoid it:

• 📶 Select a free Wi-Fi channel: Use the program WiFi Analyzer (Android) or inSSIDer (PC) to find the least congested channel in the range 2.4 GHz or 5 GHz.
• 🔧 Limit the speed for devices: In programs like Connectify You can set traffic limits for each gadget.
• 🔄 Disable background updates: On connected devices, disable automatic app updates (especially on Android and iOS).
• 🛡️ Use an ad blocker: Install Pi-hole on PC or extension uBlock Origin in the browser - this will reduce traffic consumption on advertising.

How to change Wi-Fi channel in Windows:

1. Open Command Prompt (Win + R → cmd).
2. Enter:

   netsh wlan show all

3. Find the section Hosted Network Settings and remember the network name.
4. Change the channel (for example, to 6th):

   netsh wlan set hostednetwork channel=6

7. Alternative options: if nothing helps

If sharing from a PC is not possible due to modem or operator restrictions, consider these methods:

• 📶 Buy a 4G router with a USB port: Models of the type TP-Link MR6400 or Huawei B525 Allows you to insert a SIM card or connect a USB modem and distribute Wi-Fi to 10+ devices.
• 🔄 Use your smartphone as a repeater:
  1. Connect the modem to the PC and share the Internet via USB (select in the phone settings USB modem).
  2. Turn on your phone Wi-Fi hotspot.

Comparison of routers with USB modem support:

FAQ: Answers to frequently asked questions