When the network is good, you need to use an excellent accelerator to help you log in to the game, open the Xunyou accelerator, search for the League of Legends U.S. test server, and then optimize the network environment.
Riot Games does not have a clear official announcement on how long it will take to not log in and your account will be suspended. Under normal circumstances, as long as the player's account does not violate the game's terms of service and user agreement, even if they have not logged in for a long time, they will not be directly suspended due to inactivity. However, because the PBE servers exist to test new content and gather player feedback, Riot may periodically purge temporary accounts that have been inactive for a long time or have been issued during qualification reviews to ensure that resources are reserved for players who are actively participating in the beta. However, this point in time is not fixed, and there is no way to know the exact freezing period.
In order to keep your PBE account active and keep up to date with the latest beta content, it is recommended that players log in and participate in the playtest at least once in a while. Also, keep an eye out for Riot Games' latest updates and announcements regarding PBE account management.
So the above is the introduction of how long the pbe account will be suspended if you don't log in in this issue.