Hi,
I just checked out that video. As it seems your network is properly configured, else you would not have a connection error.
The kind of symptoms point to network performance or caching issues though.
Network performance is an entirely different cup of tea and going into details here would be beyond the scope. But a few things can be checked by anyone.
Ping response time
The easiest test is to run the ping command:
Hit the Windows key on your keyboard,
type cmd,
open a command prompt,
Type:
ping ip.address.off.your.ipad
Hit enter on your keyboard.
This will send four pings (icmp packages) to your ipad.
You should have 0% lost packages.
The average response time should be under or 0ms
If you have any other results I recommend you to hit google and search for Network performance improvement topics.
If your results are good let us know and I can post the next analysis steps.