Unfortunately, today when I tried (multiple times on 2 PC's) to again view the camera feeds on Firefox the start page refused to load and Firefox states the Site is Not Secure

There is a padlock symbol with a red line through it in front of the IP address, clicking on it reveals a message in red "Connection is Not Secure" and clicking on the expansion arrow produces another text box with a "More Information" link that doesn’t appear to offer any solutions under the multiple options it provides
Firefox help pages state you can proceed, even if that's not recommended, however, I haven't been able to find any way of doing so, just stays on the login page and refuses to load
I can't understand how it all worked so well a couple days ago and not now?
I'm hoping someone has come across this problem and are able to give me a fix for this problem
Addit
Found problem, somehow the last digit of the Systems IP address had changed (don't know how/why), but all good and working again
