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Has no connection to other host due to unreachable localhost

Periodically my laptop can’t connect to other hosts in the same network. When it happens it looks like this:

ping 192.168.1.202
Pinging 192.168.1.202 with 32 bytes of data:
Reply from 192.168.1.248: Destination host unreachable.
Reply from 192.168.1.248: Destination host unreachable.
Reply from 192.168.1.248: Destination host unreachable.
Reply from 192.168.1.248: Destination host unreachable.

Ping statistics for 192.168.1.202:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss)

where 192.168.1.248 is local ip address for the laptop from which I run ping:

ipconfig

Windows IP Configuration

Wireless LAN adapter Wi-Fi:

   Connection-specific DNS Suffix  . : lan
   Link-local IPv6 Address . . . . . : ...
   IPv4 Address. . . . . . . . . . . : 192.168.1.248
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.1.1

in the same time laptop has connection to the internet. The same issue from other machines in the network so I guess there is some problem with router (Teltonika RUT240). How to debug issue further?