@Stephan Hendl Check release notes and review the steps. https://www.cisco.com/c/en/us/td/docs/net_mgmt/prime/infrastructure/3-10-4/release_notes/Cisco_Prime_infrastructure_3_10_4_Release_Notes/bk_cisco_prime_infrastructure_3_10_4_release_notes.html ...

On Administration - Licenses and Software Updates - Software Update and then select Files tab and then will let you mark check box to delete files. ***** Rate if Helpful *****

Did you configure address pool inside Cisco RV340? Check this solution below, I hope this can help you.https://community.cisco.com/t5/routers-small-business/how-to-connect-to-rv340-on-windows-via-vpn/td-p/4105119 ***** Rate All Helpful Responses ****...

Do you have vpn address that you use to connect? If yes, go to browser and type VPN address and there you can download anyconnect again. For example: https://vpn.mycompany.com.