John Giberson
Occasional Visitor
Thank you for this post. I downloaded and ran the lanscan app and YES...I did find that I had two master browsers active. I disabled the master brower on my main PC so that ONLY the QNAP NAS was the master browser. I ran lanscan again and verified that there now was only ONE master browser. I switched the router from my D-Link to the ASUS and rebooted everything STILL NO JOY. When I ran lanscan it could NOT find any devices on my LAN. It is DEFINITELY something weird with this ASUS RT-AC88U. There has to be something that does NOT like my QNAPThis is correct, however this has nothing to do with your issue.
Have you confirmed yet which client ends up as your LAN's master browser? The master browser is chosen through an election, so you can't know for sure which one won the election unless you check.
https://scottiestech.info/2009/02/14/how-to-determine-the-master-browser-in-a-windows-workgroup/
Enabling the feature only tells that device to put int a more weighted vote toward winning - it doesn't ensure you will win if another one is putting in an equal or higher priority.