QuickBooks could not get your Internet connection to work. This can happen if:
Your Internet Service Provider (ISP) is overloaded with traffic.
Your computer's Internet connection is not set up properly.
There is a problem with the modem or other hardware connecting your computer to the Internet.
Your firewall does not allow QuickBooks to access the Internet.
To resolve this issue:
Wait 15 minutes and then try connecting again.
Check your Internet connection to see if it is working properly.
Contact your financial institution and ask if its online banking system is working properly.
If your Internet connection is working and your financial institution's Internet banking system is also working but QuickBooks still will not connect to it, contact QuickBooks Technical Support.
Troubleshooting online banking errors