I have two IP cameras on my home network. I have had no problem accessing them internally through their IP address or externally with a dynamic DNS service which is set up in my D-Lik DIR628 router for port forwarding.
After a couple years of no issues, I suddenly cannot access the cameras. One of the cameras is a DLink, which I am still able to view through an account on the DLink sever, but cannot get to it through either the IP address or DNS host. The router is handling other internet access just fine.
I am not knowledgeable in networking. Does this seem like a router issue? Thanks for any thoughts or suggestions.