Try httpS I had a similar problem with mine. I cleared the cache for my browser and the used https and it worked. Beyond that I won’t be able to help much as I do not own an OSpi. A quick check of port settings may also be warranted. Does the OSpi, use a different port? Also make sure you are using port forwarding if trying to access OSpi from an external network. Something like using the mobile phone app without the phone being connected to the Wi-Fi can cause a similar issue if you haven’t configured port forwarding yet.