The Wireless N mode can be disabled from the Advanced Adapter properties in Device Manager. Please apply the configuration from the document: What are the Recommended Settings for 802.11n Connectivity?
If the issue persists after applying the recommended settings, please let us know the computer model, operating system, driver version, and any other change or troubleshooting you may have performed already.
Thank you Jonathan. Have been out of pocket much of the last two days.
-I'll double check the settings to make sure that they are 'right' per the link you sent and let y'all know.