Can't connect to Web Interface via LAN but can through Wifi

[Zuzie]

Hello, I have an install of Proxmox that I have a few VMs running on. I recently relocated my router and switch and have had trouble connecting to the web GUI all day I was able to ping out from the server but couldn't ping into it, until I unplugged my PC from the switch. Now it connects fine, as long as I'm on Wifi, but I'd like to have my PC on a LAN connection as well. Both the server and the PC were plugged into the switch at the time of the issue. Any help would be greatly appreciated! I should also mention that I am VERY new to Proxmox