@Hobbit76 The 7590 is now configured with the 192.168.0.1/29 network. Why /29 why not /24 ? What's its DHCP server range set to ? How is the WAN port of the ER605 configured ?

@Vakama Remote VPN IP Pool: 10.1.1.40 - 10.1.1.49 That would indicate that the remote LAN is using the same subnet as your local LAN. You will never be able to use a VPN is those circumstances. The...

@Tony_C It always was renewing the lease even before you upgraded!. Its just that 2.2.3 now logs it by default so you notice it!, unless you disable the log. The DHCP lease time is defined by your...

@Stanislaw123 sorry, never heard of either of those, so I have no information about their service or configuration details

@Stanislaw123 I've used an ER605 for voip with my Gigaset N300 without any problems. I'd be surprised if the firmware on the C530IP is much different. One way audio is usually a NAT problem. In my...

@cdnhk the same question was raised regarding the ER605 here https://community.tp-link.com/en/business/forum/topic/619182?replyId=1241592 and it was not possible. I dont know, but I would suspect...