@DarrinSmith 

the problem might be on the laptop, the laptop could have an antivirus / firewall software blocking connection between local devices. To prove that its the laptop having the issue, you can use an android / smart phone to connect to the wireless network and use an APP called "ES File Explorer" from Google Playstore to browse files on your NAS via FTP or just simple SMB. If the smartphone can browse the files on the NAS then its confirmed that the problem is on the laptop.

What you can do on the laptop is to disable or even uninstall any 3rd party antivirus / firewall software. If the laptop is running windows 10, windows already has an adequate firewall and antivirus built-in so no need for 3rd party antivirus / firewall software. If the laptop is not running any 3rd party software, try to set the windows firewall back to default so that it will prompt you to allow communication with other devices on the network.

I hope this helps.

@DarrinSmith ok so the problem is the router itself.

The firmware is buggy.

If you make changes to settings and then use the "reboot" option in the router firmware the setting are either not correctly applied or the router actually hangs!

The only way to be sure is to actually pull the power.

Did that and everything is fine.

That's a couple of hours out of my life I'll never get back.......