Target Machine Keeps Dropping Connectivity When I Run Arpspoof/Ettercap Against It

First and foremost, I am new to all of this so any support or help would be appreciated!

I have a target machine, (friend's iphone 8, approved for testing purposes) - xxx.xxx.0.12

My Oracle VM Kali Linux Machine (configured for bridged adapter (eth0))

I know my gateway address xxx.xxx.0.1

Whenever I try an arp poison, when i try to log into the web application on the iphone, it gets stuck at the loading screen, doesn't progress, and then ultimately drops connectivity. I use the following code on 3 different terminals, in the following order:

echo > 1 /procs/sys/net/ipv4/ip_forward

arpspoof -i eth0 -t xxx.xxx.0.12 -r xxx.xxx.0.1

arpspoof -i eth0 -t xxx.xxx.0.1 -r xxx.xxx.0.12

Additionally, I've tried playing around with ettercap, the same result happens. When i try to log into the web application on the iphone, it gets stuck at the loading screen and the ultimately drops connectivity.

Been looking all over for an answer but can't really find anything that's been concrete and helped. Also, to add, the website is a non-secure HTTP site so i dont think any SSL stripping would need to happen. Additionally, when i ping the site, i get no reply...Which leads me to think there could be a firewall? I truly have no idea, but would appreciate any sort of help!

Thank you