On occassion, settings on Apple Iphone have caused frustration due to staff members being logged out when not on the browser directly.
Preventing the iPhone from automatically logging out
Steps
- Clear your cookies & history on your phone. This link has the following instructions: https://discussions.apple.com/thread/251168731
- To clear your cookies and keep your history, go to Settings > Safari > Advanced > Website Data, then tap Remove All Website Data.
- If you still have issues, try downloading the Chrome browser for your iPhone.