@NicolaG This type of procedure is what I have been hoping to find for a long time. If it works as you describe, you're a life saver! Did you deploy the new VMX in the same subnet as the old one?

We had bad performance issues with our pair of MX95 with FW 17.10.2. We got aprox 280 Mb/s on our 1Gb/s WAN links with a 31% load in the MX (Summary Report in Dashborad). I upgraded to 17.10.4 last night and it solved the problem, we are back to apro...