Could you please clarify, how did you upd ate the Agent? Did you download the vanilla Agent or build a custom Agent package using the MSI Configurator? If you built a custom Agent, then could you please clarify what settings did you se t at Step 3 of the configuration? Please double check, that the Generate a new Internet-ID code wasn't selected. A screenshot of the Internet-ID tab of the configurator would be helpful.
Also, please make sure that Viewer and Host/Agent are up to date and the same versions. Please note, that version mismatch between Viewer and Host/Agent may lead to performance issues and some features not working. Also, if you use the self-hosted server (RU Server) update it to the most recent version too. The latest version is 126.96.36.199 and it's available for download here.
Please, try the following: 1. Fully exit the Viewer (File -> Exit). 2. Locate the file config_4.xml in the Remote Utilities Viewer %appdata% folder. 3. Remove the file from that folder. This will reset the Viewer settings/options. Your address books won't be affected by this action.
Also, we moved your message to a new topic. Please post in the appropriate forum section.