Hello Mark Houghton,
I will explain more about, what is local mode?
You might be used your old AxCrypt password(which is different from the one that is exists in our account server) to sign in to the AxCrypt app.
If users used an old AxCrypt account password to sign in with the AxCrypt app, then the AxCrypt app will warn the user with local mode.
You can also use the AxCrypt app in local mode. But the currently used sign in password will be used to encrypt the files. We do not suggest the users to use it in local mode, unless any special cases.
So, Please use your latest password to sign in with the AxCrypt app(internet enabled) without any issues.
Please try to clear the AxCrypt local contents by clicking the Reset button in the sign in dialog or via the AxCrypt file menu File | Options | Clear All Settings & Restart.
Then uninstall the AxCrypt app and install the latest version of the AxCrypt app. You can download the same from our official website: https://www.axcrypt.net/download/.
Now install the AxCrypt app(with internet connection) and try to start AxCrypting……without any issue.
Please do not forgot the password which was used in the file encryption with the AxCrypt. Because you need the same password to decrypt the AxCrypt encrypted files in AxCrypt.
still, you are facing any issue, please provide more information about the issue and write a mail to firstname.lastname@example.org.