I have two dedicated servers with OVH.com, one in Canada and the other in France. OVH has an internal network called "vRack" that promises low latency between servers. Both servers have XenServer 7.4 as the operating system. Both servers have a 10Mbit port connected to "vRack".
I use VyOS 1.8 as Firewall, VyOS is installed in a virtual machine per server. Only VM VyOS has an internet connection. Each server has an internal lan.
Test01 / OK
When sending a file from VyOS1101 to VyOS 1201, speed up to 10Mb / s
Test02 / OK
Sending files from WEB1121 (CENTOS 7) to VyOS 1201, accelerate up to 10Mb / s
Test03 / OK
Sending files from WEB1121 (CENTOS 7) to WEB-1221 (CENTOS 7), accelerate to 10Mb / s
Test04 / SLOW
Sending files from DB1111 (WINDOWS 2018 R2) to VyOS 1201, speeds up 1Mb / s (using FileZilla)
Test05 / SLOW
Sending files from DB1111 (WINDOWS 2018 R2) to DB1211 (WINDOWS 2018 R2), speeds up 1Mb / s
I've tried everything, but I can not make Windows speed up to 10Mb / s.
Thanks in advance