macos high sierra 10.13.4 Synology connection is "not safe"

[Len0031]

after upgrading to macos high sierra 10.13.4, i can't make a backup trough time machine anymore to my synology (which is updated to the latest version) when i connect to the Synology assistent i get the message in the address line of the browser: not safe followed by the Ip address.

time machine gives the following message:

An error occurred while copying files. This is possibly a temporary problem. If the problem persists, use Disk Utility to restore the backup disk.

Latest successful backup: January 28, 2018

does somebody has a solution to solve this problem?

Thanks in advance

Len

 

[Ritsuka]

It's not "safe" because the connection uses http, one person on your local LAN might intercept your traffic.
The other issue is unrelated and I have no idea how to resolve it.

 

[maflynn]

Downgrade to the non-beta, and wait for Synology to update their software to work with 10.13.14. Also did you check out Synology's support forum, they have info regarding this issue