Remotely Stream ended ISP/NGINX

[CFox243]

So, iv been trying to track this down for a while now. Mediacom connection ends the stream every 30-60 seconds, but no other ISP does. Seems to be Mediacom on a wireless network that causes it, but the system connection never drops out so not sure.
not sure if it has something to do with the area or if I have my Nginx proxy miss configured. local works fine, even going through the proxy.
but if someone is on Mediacom they disconnect constantly. AT&T connection seems to be fine. any help would be greatly appreciated.

Proxy advanced settings

  # HSTS (ngx_http_headers_module is required) (63072000 seconds = 2 years)
  add_header Strict-Transport-Security "max-age=63072000; preload" always;

    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection $http_connection;
    proxy_http_version 1.1;

    # Proxy!
    include conf.d/include/proxy.conf;
  proxy_send_timeout 300;
  proxy_read_timeout 300;
  }

location /_blazor {
   proxy_set_header Connection $http_connection;
    proxy_http_version 1.1;

    # Proxy!
    include conf.d/include/proxy.conf;

  proxy_send_timeout 300;
  proxy_read_timeout 300;
  }

location /AgentHub {
  proxy_set_header Connection $http_connection;
    proxy_http_version 1.1;

    # Proxy!
    include conf.d/include/proxy.conf;

  proxy_send_timeout 300;
  proxy_read_timeout 300;
  }

location /ViewerHub {
 proxy_set_header Connection $http_connection;
    proxy_http_version 1.1;

    # Proxy!
    include conf.d/include/proxy.conf;

  proxy_send_timeout 300;
  proxy_read_timeout 300;
  }

location /CasterHub {
 proxy_set_header Connection $http_connection;
    proxy_http_version 1.1;

    # Proxy!
    include conf.d/include/proxy.conf;

  proxy_send_timeout 300;
  proxy_read_timeout 300;
  }

The host connection is 1gb up/down

[CFox243]

Based on wireshark the website seems to reload every 30 seconds.
when i go to a PC and try to change device group when i select a different group but don't hit save and let it sit within 30 seconds it will auto refresh back to what it was.

Remotely.mov

[CFox243]

It seems like the Mediacom Modem/router might be closing a port that is needed after connection.
The issue is that it is an Employee's Personal network, so I can't really make changes to it.
I'm having a hard time reproducing the issue in a dev environment.
I had them use a hotspot on their phone, and it connected without issue.
Their home internet and connection are plenty fast for the job.

[CFox243]

For people looking for NGINX Advanced Variables

   location / {
        proxy_pass         http://ip:5000;
        proxy_http_version 1.1;
        proxy_set_header   Upgrade $http_upgrade;
        proxy_set_header   Connection keep-alive;
        proxy_set_header   Host $host;
        proxy_cache_bypass $http_upgrade;
        proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header   X-Forwarded-Proto $scheme;
        proxy_send_timeout 30m;
        proxy_connect_timeout 3600s;
        proxy_read_timeout 30m;
        client_max_body_size 10M;
    }
    location /_blazor {	
        proxy_pass http://ip:5000;
        proxy_http_version 1.1;	
        proxy_set_header Upgrade $http_upgrade;	
        proxy_set_header Connection "upgrade";	
        proxy_set_header Host $host;	
        proxy_cache_bypass $http_upgrade;	
        proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;	
        proxy_set_header   X-Forwarded-Proto $scheme;	
        proxy_send_timeout 30m;
        proxy_connect_timeout 3600s;
        proxy_read_timeout 30m;
        client_max_body_size 10M;
    }	
    location /AgentHub {	
        proxy_pass   http://ip:5000;
        proxy_http_version 1.1;	
        proxy_set_header Upgrade $http_upgrade;	
        proxy_set_header Connection "upgrade";	
        proxy_set_header Host $host;	
        proxy_cache_bypass $http_upgrade;	
        proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;	
        proxy_set_header   X-Forwarded-Proto $scheme;	
        proxy_send_timeout 30m;
        proxy_connect_timeout 3600s;
        proxy_read_timeout 30m;
        client_max_body_size 10M;
    }	
    location /ViewerHub {	
        proxy_pass   http://ip:5000;
        proxy_http_version 1.1;	
        proxy_set_header Upgrade $http_upgrade;	
        proxy_set_header Connection "upgrade";	
        proxy_set_header Host $host;	
        proxy_cache_bypass $http_upgrade;	
        proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;	
        proxy_set_header   X-Forwarded-Proto $scheme;	
        proxy_send_timeout 30m;
        proxy_connect_timeout 3600s;
        proxy_read_timeout 30m;
        client_max_body_size 10M;
    }	
    location /CasterHub {	
        proxy_pass   http://ip:5000;
        proxy_http_version 1.1;	
        proxy_set_header Upgrade $http_upgrade;	
        proxy_set_header Connection "upgrade";	
        proxy_set_header Host $host;	
        proxy_cache_bypass $http_upgrade;	
        proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;	
        proxy_set_header   X-Forwarded-Proto $scheme;	
        proxy_send_timeout 30m;
        proxy_connect_timeout 3600s;
        proxy_read_timeout 30m;
        client_max_body_size 10M;
    }