Redundant uplinks from MS425 to MX250

[Netwow]

I have 2 MS425 in a stack with 2 MX250 in HA with a VRRP vlan and cable. I need failover for the MS425 stack . When port 1 on each core is connected to port 8 on each MX I get a loop. What is the preferred config to achieve stack failover?

[jdsilva]

Remove the direct link between the two MX's. 

https://documentation.meraki.com/MX/Deployment_Guides/MX_Warm_Spare_-_High_Availability_Pair#Recomme...

[Netwow]

Thought about that but then there is the 2 internet edge switches (not stacked) with redundant ISP uplinks. 

[jdsilva]

---

@Netwow wrote:

Thought about that but then there is the 2 internet edge switches (not stacked) with redundant ISP uplinks. 

---

So?