TurboTax error 70001 is a  connectivity issue that usually resolves itself.  If the issue doesn't resolve on its own, close TurboTax, restart your computer, and reopen TurboTax.

still does not fix the problem

Since the previous suggestion did not solve your problem, consider some other things you can try:

1. Make sure you aren't on a work computer. (Most work computers have a strong security firewall that can block TurboTax from accessing the Internet.)
2. Check your firewall (like Windows Defender, Bitdefender, or AVG). Make sure it's not blocking TurboTax from accessing the internet.
3. Run TurboTax as an administrator.
4. Ensure TurboTax is up-to-date.

To reset your Internet connection:

1. Turn off your computer, your router, and your cable modem, in that order.
2. Wait a minute, then turn your modem back on.
3. Wait another minute, then turn your router back on.
4. Once your router is back up, turn your computer back on and try logging in again.

If none of these things resolve your problem, you can also contact TurboTax customer support at https://support.turbotax.intuit.com/contact/.  We’ll help you connect with the right expert for your specific problem.

Please click Error Code 70001 when using TurboTax Desktop to learn more.

So, this was a problem last year, for the tax year 2020.  Why has it not been fixed for this year?  

You can try the steps listed below:

1. Make sure you aren't on a work computer. (Most work computers have a strong security firewall that can block TurboTax from accessing the Internet.)
2. Check your firewall (like Windows Defender, Bitdefender, or AVG). Make sure it's not blocking TurboTax from accessing the internet.
3. Run TurboTax as an administrator.
4. Ensure TurboTax is up-to-date.

To reset your Internet connection:

1. Turn off your computer, your router, and your cable modem, in that order.
2. Wait a minute, then turn your modem back on.
3. Wait another minute, then turn your router back on.
4. Once your router is back up, turn your computer back on and try logging in again.

If none of these things resolve your problem, you can also contact TurboTax customer support. We’ll help you connect with the right expert for your specific problem.

Please click Error Code 70001 when using TurboTax Desktop to learn more

@nberthelemy