Grafana 401: unauthorized error, on iphone only

To start with, I’m not sure I have port forwarding set up right, as I dont really understand how to do it, and im very new to Home Assistant.
But I’ve got it up and running via, and I have Grafana set up and created. I want to share it to my dashboard via iframe, but I’m getting the dreaded ‘401: unauthorized error’ view!! Im so frustrated because Ive followed nearly every forum about this that I can find, and already added extra things to my grafana configuration, tried multiple ports, and reset my cache, so I’m not sure what more to do.
I feel like it wasn’t happening on the previous version of Grafana.

Someone please help, what do I check/do?