How to set up a TL-ER5120 Router before a Deco M4 mesh network to have load balancing
I have a Deco M4 Network. router+6 APs (5 wired, 2 wifi), few switches.. 300MB bandwith from 1 ISP - working perfectly
 
 Just added a 2nd ISP (also 300mb) and bought a TL-ER5120 in order to have load balancing and backup if 1 ISP is down
 
 What's the best way to add the ER5120 in order to have?
- load balance
 - eventually add both bandwiths
 - to have the network running even if 1 ISP is down
 - keep the mesh wifi setup
  
 
 Should I add the ER5120 as main router and all deco M4s as access points? would this keep MESH?
 
 Should I add the ER5120 in bridge mode and keep one Deco M4 as main? (Is this possible to use the ER5120 in bridge mode while balancing loads and adding bandwiths?
