MX Replacement Vlan connection lost

[TDevanney]

I replaced an MX64 with an MX85 in 3 sites (A, B, &C).  Our main site (A) was the first to replace.  The replacement took no time at all.  Just had to load in the Uplink details and all other settings remained.  I did the other two sites (B&C) in the same night.  Same thing it seemed.  Loaded Uplink details and all other settings remained.  The VLANs in site B, however, are not connecting with A any longer.  I cannot seem to figure it out.  Minus unique addresses, B&C are identical.  No problems with site C and the VLANs.

[alemabrahao]

Are the vlans participating in SD-WAN? Have you validated this yet?

[TDevanney]

They are not.  They are setup and were prior to the upgrade with no issues.

[Ryan_Miles]

Did you review the LAN port mapping to ensure the config still aligns properly? The LAN port numbering is different between a MX64 and MX85.

https://documentation.meraki.com/MX/Other_Topics/MX_Cold_Swap_Replacing_an_Existing_MX_with_a_Differ... 

[TDevanney]

Thanks.  Went through the ports.  Still having issues.

[Ryan_Miles]

In that case I'd recommend you open a Support case

[PhilipDAth]

>The VLANs in site B, however, are not connecting with A any longer

If you are not using AutoVPN, how should they be talking to each other?

[Rekun]

When replacing devices, you have to enable autovpn for the subnets again as Phillip has suggested