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I have my Android phone connected to my PC (Windows 10 with Android SDK installed). I set up my PC to have a mobile hotspot so the phone can be connected to the PC network. My PC can ping the phone's IP address, but when I want to ping the PC from the phone's shell (through adb shell), it just can't ping it. I have a HTTP server on the PC and need the phone to reach to the server, which is not reachable right now.

The PC IP address is 192.168.137.1:

Wireless LAN adapter Local Area Connection* 2:

   Connection-specific DNS Suffix  . :
   Link-local IPv6 Address . . . . . : fe80::345d:2505:82fa:3cd5%9
   IPv4 Address. . . . . . . . . . . : 192.168.137.1
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . :

And the phone's IP address is 192.168.137.159:

wlan0     Link encap:UNSPEC
          inet addr:192.168.137.159  Bcast:192.168.137.255  Mask:255.255.255.0
          inet6 addr: fe80::5ca7:98ff:feea:cb17/64 Scope: Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:16441523 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8750144 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:17116348103 TX bytes:4458547550

I also tried it without mobile hotspot when both connect to the same router, but same issue again.

What is the problem? Does Windows have some settings that need to be changed for visibility and reachability?

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  • 1
    Make sure the PC considers the mobile hotspot as private connection otherwise the firewall will block e.g. PING. Check if the server is running on all network interfaces. Check the Windows firewall on PC side if server port/the server process is whitelisted.
    – Robert
    Oct 28, 2021 at 7:06
  • I couldn't find an option on the PC mobile hotspot to specify the public/private network. Right now it's visible to public. And also the server is a simple HTTP server- no custom port.
    – Tina J
    Oct 28, 2021 at 15:06
  • superuser.com/questions/1419322/…
    – Yorik
    Oct 28, 2021 at 15:24
  • Did it. It's now private. But still having the issue.
    – Tina J
    Oct 28, 2021 at 15:56
  • Interestingly I could not ping android device on local network (host unreachable), Android 9.
    – Martian2020
    Jan 11, 2022 at 19:32

1 Answer 1

Reset to default
1

Make sure your Firewall is OFF (or allowed for accepting request from domain/private network).

For example, from Windows 10 -> Firewall & network protection -> Domain Network -> Turn OFF, Microsoft Defender

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  • May need a reboot as well after
    – rogerdpack
    Nov 29, 2022 at 0:06

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