Can't see or connect to NAS since updating TOS to V5

[OttoG]

Since updating my NAS to TOS v5 (now at 5.0.156) I have not been able to connect to it with TNAS Mobile.

TNAS Mobile version is v2.4.20 on a Samsung Galaxy s20
TNAS Online is enabled and successfully registered

When launching TNAS PC on the phone The following pop-up message appears:

For the best compatibility and experience, please update your TOS 4 to 4.2.30 and above. CONFIRM

After confirming it states "No device found, Pull down to refresh" doing this just results in the same message appearing.
If I tap on the "+" to add a NAS I'm Prompted for the User.id, Password and TNAS address.
For the TNAS Address, I've tried the ip-address (format x.x.x.x:8181) of the NAS and the TNAS.id. touching on confirm results on a slight delay with a spinning busy image before stopping and staying on the Ad TNAS Screen. My NAS is not added to the app?

Any Thoughts?

[crisisacting]

There's an upcoming version that works with TOS 5 (as well as be the 2 Factor Authenticator); the current version (2.4.20) is intended for TOS 3.×/4.× devices.

[OttoG]

I thought that that was probably the case. Thanks for confirming.