Ethernet aggregation lets you combine two Gigabit Ethernet ports for file transfers at twice the speed. You can use Ethernet AGGREGATE ports 1 and 2 to cable a device that supports Ethernet port aggregation to the router.

Enable Port Aggregation on the R8500

1. Launch a web browser from a computer or wireless device that is connected to the network.
2. Enter http://www.routerlogin.net.
   A login screen displays.
3. Enter the router user name and password.
   The user name is admin. The default password is password. The user name and password are case-sensitive.
   The BASIC Home screen displays.
4. Select ADVANCED>Advanced Setup>Ethernet Port Aggregation.
   
   

Enable LACP on Synology NAS.

1. Use Ethernet cables to connect the Synology NAS to Ethernet port 1 and port 2 on the router.
2. Launch a web browser to access the Synology NAS management page.
3. Follow this link: https://help.synology.com/dsm/?section=DSM&version=5.2&link=AdminCenter%2Fconnection_network_linkaggr.html&lang=enu
   
   
4. Go back to the R8500 UI and check if Port Aggregation status is now Active.