Problem accessing website through a certain port on one device. SonicWall

Hi everyone!

I’m having a strange issue on my sonicwall. Everyone in the hard wired , and Wi-Fi network is able to access a site through port 5003 except one machine. The only difference between that machine and the other is that it has a static IP of 192.168.0.xx set, subnet mask was initially 255.0.0.0, and I changed it to what the other were which is 255.555.255.0, gateway is 192.168.0.254. I checked the NAT policies and firewall policies and nothing looks out of place.

All of the other devices on the network work just fine except this one. Any thoughts ?