I am forwarding some ports on a cisco linksys ea 6500 router to view surveillance cameras. I checked on canyouseeme.org and port 80 was open. Then I checked back within 5 minutes and it was closed. Since then I am unable to get that port open. However that port is not blocked by the ISP cause I work with them and I have used that port already on other camera systems.
This router is one of cisco's smart routers I am wondering if something in the router might be causing this. Any assistance will be greatly appreciated. Thanks.