Networking problems after Dell BIOS Update Inspiron 24-3455

We have an Inspiron 24-3455 running windows 10.  We recently got a notification to update the BIOS on the computer which we accepted.  Since that time, our connection to our network router has been very flaky.  After a reboot - we can connect to our wireless network; however, after 10-15 minutes, the connection is lost and cannot be re-established without a reboot. 

We have been using this network connection without issue for the last 3 months before the BIOS update request. 

Any suggestions??

Thanks, John Nagel