The disclosed technology provides systems and methods for dynamically assigning cell reselection priorities (e.g., system information block (SIB) priorities) to different layers (e.g., different frequency bands or different radio access technologies (RATs)) for radio cells experiencing performance degradation. In some implementations, default SIB priorities of degraded layers are downgraded based on the severity of the performance degradation, for example, set to the lowest variable SIB priority for critical performance degradations. The adjusted SIB priorities are broadcast to user equipment (UE) to allow the UEs to perform cell reselection based on the adjusted SIB priorities. When the performance degradation is resolved, the SIB priorities revert to the default SIB priorities.