OL-301 is one of several general connectivity errors with the server that can occur for a number of reasons. For example, your financial institution's online services may be down due to server maintenance, high server traffic, stock market hours, or an unexpected outage.
Wait a couple of days and also try updating your account during different time of the day (some banks perform regular maintenance at the same time every day).
The error message you receive is a generic message generated by your financial institution.
Look in the One Step Update Summary for a message from your financial institution.
If you have waited and the problem continues, delete your temporary internet file and try again.
To delete the files in the Temporary Internet Files folder:
Windows 7 / Vista
Earlier versions of Windows
Share advice with other Quicken customers about using our products and managing your finances.
Quicken Community