@Somnus Thanks for the answers.

@Somnus Unfortunately the upstream router is an Italian internet provider not giving an public IP, which is the root of the problem. So port forwarding on the this router is not in mine control. Are...

With Omada Cloud (sofware controler) I have configured a site to site ipsec VPN between site A and site B. The vpn is working perfect and I can connect from Site A all devices in lan in Site B and...

@Virgo It is an virtual machine (hyperV instance) with os win server 2019 Host machine is win10

When I shutdown and restart the omada softwarecontroler the wan connection (TL-R605) goes [down] and later [up], causing the Lan losing internet for a short time. This is strange but not a big...

@paderijk Indeed. I also confirm its working again. Thanks for escalating this. @Fae After updating, Omada is telling there is an update which is actualy a downgrade to the offial version a guess....