I work for a UK based IT Company and we have over 50 Synology’s for our clients for a range of different requirements.We have noticed recently that snapshot replication does not work on multiple Synologys ,basically It will allows us to enter the admin authentication log in then we get the following message stating the system is busy.we have checked public ip addresses.Open ports basic troubleshooting and everything is as should be.Do you have any idea what could be causing this ?
Do you have the same issue when replacing the public IP with a VPN tunnel?
What is your system monitor stating? CPU and RAM busy or not?
Any kind of sync job (HB, Cloud Sync, SSR,) really hits hard on RAM so adding RAM can really improve performance.