Workstation cannot connect to company file after upgrade to QB Premier Professional Services 2021.

Thank you for going into further detail on what you're trying to accomplish, ivanlabastida.

Looks like you've done all the possible troubleshooting steps to fix the error when connecting your workstation to the company file after upgrading your QuickBooks Desktop to the latest version (2021). And I bet, you're referring to the steps provided in the following articles below:

• How to fix "Error: Cannot communicate with the company file due to firewall"
• Fix company file and network issues with QuickBooks File Doctor.

If so, this requires further investigation and I suggest you give our phone support team a call. I know that you've already reached us for the same issue. However, they have the necessary tools to help analyze the reason why you're still getting the error after all the troubleshooting performed.

Here are the steps to contact support:

1. Click Help at the top menu and select QuickBooks Desktop Help.
2. In the Have a Question? window, enter a topic.
3. Click Contact us.
4. Hit the Stat Messaging button.
   

Please take note our operating hours for chat support depends on the version of QuickBooks that you're using. Please see this article for more details: Support hours and types.

Keep me posted for additional questions or other concerns. I'd be more than happy to help. Wishing you the best of luck.

Thanks for the reply. A tech and I went through all the steps on those articles. I would be happy to get a call going with someone that can help. The problem is that every time I call, and at this point it has been around 4 calls, I go through the same steps over and over and we haven't gotten anywhere. It seems every time I call, the issue does not get escalated. Here is a time I was on hold for three hours where my tech was reaching out to people before the call ended and I never got a call back. I spent another two hours with another tech on Wednesday and we agreed he would call me back on Friday to continue but he never called back. I just don't know what to do. I can't seem to think of anything in my environment causing the issue but the phone support hasn't yielded any results.