There’s been an arp problem with the new dells.
C:\Windows\system32>arp -a
Interface: 192.168.105.199 --- 0xb
Internet Address Physical Address Type
192.168.104.2 00-03-ba-1d-a9-70 dynamic
192.168.104.3 00-03-ba-67-d4-e9 dynamic
Type cmd then ctrl + shift + enter to get admin privilege.
C:\Windows\system32>netsh -c "interface ipv4"
netsh interface ipv4>set neighbors "Local Area Connection" 192.168.104.1 00-09-43-1b-21-4c
netsh interface ipv4>exit