Hi @MailDat,

Thank you for contacting our community.

If you don't restart the router, will this situation not happen? Can I know why you need to restart?

Generally speaking, when restarting the router, all connections, including VPN, DDNS, etc., need time to be reestablished.
In addition, to a certain extent, it is also to effectively distinguish active users from dormant accounts. This enables us to provide more stable connection quality and high-quality network resources for all frequent users. This move not only maintains the overall health of the server cluster, but also brings a better experience to loyal users