I've just installed the MX64 in my test environment. I have a Synology Diskstation that I use to sync onedrive data (Office Home 365). Since the installation, the cloud sync fails. If I remove the MX64, and replace with my previous Firewall, cloud sync starts working again. (https://www.synology.com/en-us/dsm/feature/cloud_sync).
I have tried white listing the synology diskstation. No luck. I do have firewall forwarding rules for other Synology features: SMTP, Web, Audio, Video, etc. I do not have any rules for blocking outbound traffic other then the default out-of-box settings.
I have turned off AMP and IDS.
Any ideas of where to start trouble-shooting?
Everything else is working, only the cloud sync to onedrive is failing.
I have two NIC's in the synology bonded for redundancy. I see this event log on the Meraki:
Jun 15 08:23:45 DSDATA Client IP conflict MAC: 00:11:32:39:40:76 also claims IP: 192.168.1.10
Jun 15 08:23:45 DSDATA Client IP conflict MAC: 00:11:32:39:40:75 also claims IP: 192.168.1.10
Could that be cause? It is not connected to a managed switch.