If you’re still having problems when filing when NETFILE is open, please post the exact message you're receiving when trying to submit your return so we may better assist you.
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I've tried four times to Netfile and have been rejected four times. This message came with the "....unable to file" portion. One or more entries in your tax return require correction. The data entered is either invalid, or mandatory information is missing. If you are unable to resolve the issues, please contact your Software Developer.
This is the message I get when attempting to NetFile.
Time attempted was 9:50 pm Pacific.
"We're sorry, the Canada Revenue Agency was unable to accept your NETFILE tax return."
I checked CRA site for downtime for my time zone = Pacific Time Zone