@tomwilmot 

Good day,

Thank you very much for your time and patience.

Sorry for the delay.

May I know the model number of your Deco devices?

Did the Deco work on the access point mode or wireless router mode

And is there any error message when Tapo camera failed to link with NAS?

Are you able to ping the Tapo Cam on the NAS?

As for the port forwarding, please refer to this link: https://www.tp-link.com/support/faq/1797/

If possible, could you please help me run a simple test:

1. Still connect back the old router; then set up one of the Deco to be access point;
2. Check on the Tapo and NAS again to see what happened;

Thanks a lot.

@Brook 

Hi

I'm using 2 Deco M5s in my current set up. I have since managed to do some more troubleshooting on this. It appears that my NAS which is connected by ethernet directly to my router can't see my Tapo C200 as the networks aren't actually linked fully. The NAS has a 192.168.1 IP and the Decos issue 192.168.68 IPs which are used by all other devices on my network.

I can see the NAS (192.168.1.#) from my PC (192.168.68.#) and I can see the Tapo C200 (192.168.68.#) from my PC but I can't see the Tapo from the NAS (192.168.1.#) so the bridge issue appears to be from the routers network (192.168.1.*) to the Deco network (198.162.68.*) but not the other way round.

Unfortunately I can't just move the NAS to plug into the Deco directly as that means all of it other functions (automatic backup, network accessibility and VPN) stop working.

I've also tried having the Deco's set up in both modes (Router and AP) and taht doesn't make any difference to the connectivity link.

Thanks

Tom

@tomwilmot 

Good day,

Thanks a lot for your detailed information.

 I think put the Deco into the access point mode should not have the double NAT issue and there would only be one IP range which is 192.168.1.xxx？

So did you mean, even the Tapo and NAS are in the same IP range, they still fail to see each other?

 And there is another workaround, have you tried to open the ports on the Deco for Tapo camera when it is on the router mode?

https://www.tp-link.com/support/faq/1797/

Thank you very much.

@tomwilmot 

Hi!

Sorry for disturb you and since our senior engineers are quite concerned about your case, so are you able to access the camera on the Synology via Deco?

Thank you very much!

@Brook Hi - Sorry I've not managed to rest my network since your last message. I'm hoping to do it to day and will reply as soon as I've tested it again.

Tom

@Brook 

Hi Brook

Thanks for your help with this. Putting the Decos into Access Point mode worked, it means I lose the additional device / network controls but my Tapo is now visible across the network which is the more important part for me.

I did try port forwarding in router mode but that didn't work unfortunately.

Tom