Why do I get "connection to server is lost, tap to retry" message watching YouTube

[Willyone]

I just bought a Samsung Galaxy Tab S 10.5" and really enjoy watching YouTube videos while using my BT headphones. I can watch from 10 minutes to an hour of videos before a video stops and I get the error message. If I turn WiFi off and back on the video I was viewing will start again from the beginning. But before long I will get the error message again. I'm still in the window where I can return the tablet but I really don't want to. I've cleared the caches and data for YouTube and Google Play Services and changed my router settings from automatic to manual channel selection and set it to chanel 11. This seemed to stop the issue for one night but it came back the next day. Any help would be appreciated.

 

[B. Diddy]

Welcome to Android Central! Are any power saving modes turned on? If so turn them off.

 

[Willyone]

Thank you but no, I'm not using any power saving options.

 

[B. Diddy]

Go to Settings>Wi-fi, long-press your network, tap Modify Network, then Advanced Options. Is it set to DHCP or Static IP? Make sure it's DHCP.