How to fix Synology Nas Download station on Waiting Status
This seems to be a known issue occuring occasionally.
First of all you should never trust your ISP.
By default, if you don’t set up specific DNS servers on your computer (or your router), default DNS servers from your ISP will be used.
To avoid unwanted DNS errors, switch to public DNS servers like Google’s DNS and OpenDNS
If you can’t add an alternative DNS server on the box/router provided by your ISP add an alternative DNS server in Synology Control Panel (Control Panel – Network – General – Alternative DNS). You can use Google’s DNS 22.214.171.124
You can also create a DNS server