Zerotier packet loss when ping to or from Linux!

Hello guys

i have a problem when ping to or from linux vm i dont know what i am missing .

my network office

LAN network 20 PCs (192.168.2.0)
linux debian VM (as router) to expose office LAN
zerotier installed on that linux (10.146.19.207)

my labtop (windows 10 far away from the office)

zerotier installed (10.146.19.80)

zerotier controller

both clients are authorized and assigned physical IPs ,IPv4 and IPv6(linux )
added route 192.168.2.0/24 via 10.146.19.207

Routing configuration

i followed step by step this instaurations:
[https://zerotier.atlassian.net/wiki/spaces/SD/pages/224395274/Route+between+ZeroTier+and+Physical+Networks]

status
both clients are working and i can reach any device in the office lan and Linux can reach laptop client .

problem

laptop ping 8.8.8.8 (no packet loss)
linux ping 8.8.8.8 (%5- %15 packet loss)

laptop client --------ping ------> linux client
i get packet loss from %15 to %25 total
linux client --------ping ------> laptop client
i get packet loss from %5 to %15 total


you can see from ping above the problem is in linux vm but do not know where !!
i need help to solve this problem .
thanks in regards

You could try using traceroute to see if there is a problem with an intermediate point in your network, the nice tutorial below should give you some pointers [also, it might be worthwhile seeing if changing the network cable makes a difference to the Linux client]: