Create WiFi hotspot without internet from laptop

Question

I’ve been digging into google but I can’t find a proper link to guide me. I want to create a wireless hotspot from my hp laptop to connect three devices to it. I have no access to internet. I need the modem to be like a router so any other devices can see it when they scan for WiFi hotspots. It would be like a house group but without internet. Anyone can help me? Thanks in advance

Solution

What you want seems to be a peer-to-peer, or Hosted Network. It has been built into Windows since XP, but access changed in Windows 8 and 10. Using Windows 10 built-in capability:

• Enable WiFi and turn off Airplane mode from the control panel.
• Press Windows and type cmd. Then press CtrlShiftEnter and click Yes to confirm UAC for the Administrator CMD prompt.
• Type (or copy/paste) to enter netsh wlan show drivers, listing network drivers. You should see Hosted network supported : Yes... if not, drivers need to be installed or updated.
• Enter netsh wlan set hostednetwork mode=allow ssid=mynetname key=mypwd, replacing mynetname with your chosen ad hoc network name, and mypwd with your chosen password (8 to 63 characters long).
• Enter netsh wlan start hostednetworkto start communication.

There is also a GUI to set up ad hoc networks, which I find takes a bit longer.

Windows 10 hosted networks employ WPA2 security (thanks to @grawity for correction).

Comments

[DaMaxContent]

What are you asking for? I see that you want to host a wireless network, but you are not being clear. You say that you want to host a hotspot from your laptop, but then want wireless routing from a modem. A hotspot is a piece of software that broadcasts your internet connection through your wireless card. A hotspot is also referred to as a wireless access point (with a network bridge). A modem is a piece of hardware that receives an internet connection from a coaxial cable and forwards it to either router or some other device connected over a rj45 cable.

[madcoderz]

There is an app called Zapya for mobile devices which makes a wireless access point without internet connection. This app somehow works without the bluetooth mode on and without internet and people can share documents and else. They can even create a little network through this app to even play games. So I thought I could do the same with my notebook to create a network as Zapya does

[user1686]

Win8/10 hostednetwork is not ad-hoc; it's a regular managed ("infrastructure") network and uses standard WPA2. Same goes for "hotspot" features in most other operating systems. (Though even ad-hoc mode nowadays supports WPA2...)

[madcoderz]

Thanks for the replies. Sadly as of Windows 8.1 they removed the option to create Ad Hoc connection. Here’s the link social.technet.microsoft.com/Forums/es-ES/…

[DrMoishe Pippik]

@madcoderz, You might try third-party software such as WiFi Ad-hoc Manager, download.cnet.com/WiFi-Ad-hoc-Manager/… , or Simple Ad-Hoc Creator, sourceforge.net/projects/simpleadhoccreator .