I cannot connect to Proxmox via Browser

[ElmerFudd]

this is my initial foray with proxmox. Ive successfully installed it on the box, Ive reconfigured every connection on the laptop to be the same subnet mask the IP address and port does not seem to see or connect to the box with an ethernet cable attached to both. there is clearly a setting that I am overlooking but I am not seeing which one it is at this point
I am open to suggestions

 

[UdoB]

I have tried (with limited success) to give some hints for initial connectivity problem: https://forum.proxmox.com/threads/f...can-not-load-the-web-gui-in-a-browser.160091/

 

[ElmerFudd]

I went though those suggestions and they have ruled out some causes but I still do not have connection I am afraid to say

 

[Impact]

Please share

cat /etc/networking/interfaces
ip a
ip r

Also test this: https://gist.github.com/Impact123/3dbd7e0ddaf47c5539708a9cbcaab9e3#temporary-dhcp
Share everything you see at the monitor.