DELL N2048 Switch unable to ping other laptop

Hi Dell support, I have DELL N204 and I configured the switch via console and here is my config

interface vlan 50
ip address 192.168.100.1 255.255.255.0
exit
!
interface Gi1/0/47
switchport access vlan 50
exit

interface Gi1/0/48
switchport access vlan 50
exit

on the 2 port, two laptop is connected and ip address is LAPTOP A: 192.168.100.5, LAPTOP B: 192.168.100.6, and both laptop is pinging but the result is unreachable.

Here also is the info of the switch,

Machine Description............... Dell Networking Switch
System Model ID................... N2048
Machine Type...................... Dell Networking N2048
Serial Number..................... CN0DMD5F2829853B0045A03
Manufacturer...................... 0xbc00
Burned In MAC Address............. F8B1.5673.D662
System Object ID.................. 1.3.6.1.4.1.674.10895.3054
SOC Version....................... BCM56340_A0
HW Version........................ 5
CPLD Version...................... 13