System wont connect with CRA & download multiple tries

on line, very disappointing tried multiple times for myself an d my wife, accepted by CRA, but turbo tax to went around and around

Please clear your browser cache (or use a different browser) and try again. If you are still not able to resolve this issue, please contact our phone support team at 1-888-829-8608 for more help.

I have tried safari and firefox and the mobile app. I think the issue is on the server side. I cleared all cache, used private browsing but I still see the same message - MYName may still be signed in to CRA. I followed instructions and still did not work. Created a new return and still see the same message.