Trying to logo using a Galaxy 3 and Apple desktop

Am trying to log on - using a Galaxy 3 to an Apple Desktop - using OS 10.4.11 (yes its an old operating system - but Air Droid worked fine prior to the new makeover and "sign in" requirement.) The desktop is seeing that my email is in the Airdroid system - and has even allowed me to change the password, but when I try to log on to download it says the email and password combo is incorrect - yes I have checked the spelling etc. It will not display a code for me to scan - but that was the same previously - I used to enter the generated code to gain access. Can anyone help?

OK. Typed in the network code that comes up on the phones log on screen, and got linked that way - but there is still the issue of not being able to connect using the password/email...