Destination host unreachable when pinging a Windows 7 machine in LAN

Question

Computer networks

Situation: there is a local network, more than 20 computers, connected by a wifi router. You need to establish a connection between two windows 7 computers. Apache is installed on one (A) and Windows Firewall and antivirus are disabled, on the other (B) we want to connect using the network ip address.

- ping from A to B and from B to A returns Reply from 192.168.1.148: Destination host unreachable.
- ping from B to another Linux server on the network works
- both devices are connected to the network and have assigned network addresses

How to open A on the network? Are there any other services or services in Windows 7 that are blocking connections?

Answer 1

immediately after the ping, look at
arp -a
if arp does not contain the MAC address of the remote computer, or it is all zeros, then the problem may be either in communication at the link level, or in a crooked routing table, or in a _local_ filter (for example, access to this IP over IPSec policy).
If there is a poppy address in ARP, then there is a problem in the IP filter on the remote computer.

Answer 2

Offhand: Check both machines for tcp/ip v4, not v6

Answer 3

turn off the built-in windows firewall or add an exception

Answer 4

Make the network "home", not "public"