All has been working really well with Blue Iris and our wildlife cameras until a couple of days ago when my husband was unable to access Blue Iris via the App on his iphone. This then started working the next day, without any changes made to BI, PC or his phone! Then this morning he now cannot access via his iPad (which was working OK) or his iPhone. Access hasn't changed on my iPhone at all, despite upgrading to a new phone and it works as it should on my iPad too. I've carried out all the usual checks, like rerun the WebServer and checked the Lookup Key information on his devices.
Any advice please as I'm totally stumped as to why he suddenly cannot connect

Thanks
Sam