Apologies if this is not the right forum, did not know where to post this question.
Overall my dlink camera works but recently discovered problems over a vpn.   I cannot access it.
I can still access the router at 192.168.0.1  but the camera at 192.168.0.100 is inaccessible.  Same domain and subnet but just fails to respond.  I'm not just talking about viewing,  I cannot enter the setup page which suggests to me it is not a port thing.  Or is it?
Any suggestions on how to troubleshoot this would be great.
If required,
Windows 10.0.19041.685
Chrome Version 87.0.4280.88 (Official Build) (64-bit)
DCS-5222lb1 firmware 2.16
The error message I get is:
The requested URL could not be retrieved
(113) no route to host
Thank you