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Recently installed Deco M5 Mesh, all three devices linked via Wifi.
However, I'm having problems connecting to my security cameras via DDNS.

I've configured Static IP's to the camera DVR, and port forwarding.
When I connect directly using Static IP, everything works great.
If I try and connect using DDNS credentials, camera access is painfully slow and/or intermittently fails.
If I try and connect using DDNS from outside my network (i.e Cell Phone Data) Everything connects and works fine.

Is this a limitation of the Deco Devices?
From my research I believe this is NAT Loopback, so is this supported by the Deco's ?

Thanks,

Simon