FTP Service fails to start

[Stevd]

Trying to figure out why FTP isn't working.

I updated to the 4.2.02.

Under file services I enable FTP. It says it is enabled, but in the logs it says "Start FTP failed!"

I can not connect either internally or externally.

This feature has previously worked.

I do need this feature as I use it to back up from a remote site.

Any pointers?

[TMSupport]

It's possibly the reason of the TOS version.
You can reinstall your TOS to 4.1.30 to see whether it's ok.
Please see the instructions below:
Please be advised the TOS reinstallation would not erase your data unless you encounter B below.

Power off the NAS, take out the HDD’s, power on the NAS.
Search the NAS IP address by the TNAS PC App, click on the located IP address and click "Login"
When it says no HDD detected, keep the NAS powered on and install your HDD
Next
When it asks if you’d like to install TOS already in the HDD or install new TOS, please select “Install new TOS”. And here there is a message saying the data in the hard drives would be lost, please ignore it, your data won’t be lost by confirming “Yes” to proceed here.
Next
Auto download and install TOS system (recommended)
Set your password and time zone

After that, there are two possibilities:
A. You may be directed to the log in page, please go ahead to log in.

B. You may be directed to the RAID creating page, please STOP here and close the window immediately. Please get back to us, and we will need to remote-in to check.

After the TOS reinstallation, to ensure you can see the data in your hard drives, please check the following:

1. Please ensure the admin user has the R/W permission to the shared folders.
Please go to TOS Control Panel – Privileges – User – select the user and Edit – Permission

2. Please ensure the shared folder’s R/W permission is authorized to the user:
Please go to TOS Control Panel – Privileges – Shared Folder – select the shared folder and Edit – please check in User permission and Group permission accordingly.

3. If you are still unable to see the data, please go to TOS Control Panel – Privileges – Shared Folder – Advanced – Restore to