22A7 function not found in xctu Error while downloading legacy firmware file:Read timeout

hi kindly i need a help i am using xbee s2 i have a facing error firmware library whenever the setup of firmware library will be installing this type of error will be occur “Installing legacy Xbee firmware” has encountered a problem.
Error while downloading legacy firmware file:Read timeout

Hmzaaa, you need to one have an open Internet connection and two, the XCTU software needs to be on the exclusion list for your firewall. Then XCTU can access the server to download the Legacy firmware files.