核心网拒绝（最常见的根源）

如果核心网返回了拒绝码，UE通常会收到一条包含具体原因的NAS消息。

查看拒绝码： 无论是4G的EMM/ESM Cause还是5G的5GMM/5GSM Cause，核心网下发的拒绝码是最直接的线索。

常见原因： 签约不匹配（APN/DNN错误、漫游限制）、签约数据不存在、运营商禁止（PLMN拒绝）、区域限制、跟踪区不接受等。

信令跟踪： 在核心网网元（如MME/AMF或SMF/PGW）上抓包或查看日志，看是因为什么原因发送了PDU SESSION ESTABLISHMENT REJECT或ACTIVATE DEFAULT EPS BEARER CONTEXT REJECT。

资源不足： 核心网侧的资源池满载或license不足，也可能导致直接拒绝。

https://dazhou.weibow.com/

https://dazhou.weibow.com/shenghuochangshi/show-3860.html

https://dazhou.weibow.com/shenghuochangshi/show-3859.html

https://dazhou.weibow.com/shenghuochangshi/show-3858.html

https://dazhou.weibow.com/shenghuochangshi/show-3857.html

https://dazhou.weibow.com/shenghuochangshi/show-3856.html

https://dazhou.weibow.com/shenghuochangshi/show-3855.html

https://dazhou.weibow.com/shenghuochangshi/show-3854.html

https://dazhou.weibow.com/shenghuochangshi/show-3853.html

https://dazhou.weibow.com/shenghuochangshi/show-3852.html

https://dazhou.weibow.com/shenghuochangshi/show-3851.html

https://dazhou.weibow.com/shenghuochangshi/show-3850.html

https://dazhou.weibow.com/shenghuochangshi/show-3849.html

https://dazhou.weibow.com/shenghuochangshi/show-3848.html

https://dazhou.weibow.com/shenghuochangshi/show-3847.html

https://dazhou.weibow.com/shenghuochangshi/show-3846.html

https://dazhou.weibow.com/shenghuochangshi/show-3845.html

https://dazhou.weibow.com/shenghuochangshi/show-3844.html

https://dazhou.weibow.com/shenghuochangshi/show-3843.html

https://dazhou.weibow.com/shenghuochangshi/show-3842.html

https://dazhou.weibow.com/shenghuochangshi/show-3841.html

https://dazhou.weibow.com/shenghuochangshi/show-3840.html

https://dazhou.weibow.com/shenghuochangshi/show-3839.html

https://dazhou.weibow.com/shenghuochangshi/show-3838.html

https://dazhou.weibow.com/shenghuochangshi/show-3837.html

https://dazhou.weibow.com/shenghuochangshi/show-3836.html

https://dazhou.weibow.com/shenghuochangshi/show-3835.html

https://dazhou.weibow.com/shenghuochangshi/show-3834.html

https://dazhou.weibow.com/shenghuochangshi/show-3833.html

https://dazhou.weibow.com/group/show-3832.html

https://dazhou.weibow.com/invest/show-3831.html

https://dazhou.weibow.com/exhibit/show-3830.html

https://dazhou.weibow.com/invest/show-3829.html

https://dazhou.weibow.com/know/show-3828.html

https://dazhou.weibow.com/exhibit/show-3827.html

https://dazhou.weibow.com/news/show-3826.html

https://dazhou.weibow.com/group/show-3825.html

https://dazhou.weibow.com/exhibit/show-3824.html

https://dazhou.weibow.com/buy/show-3823.html

https://dazhou.weibow.com/group/show-3822.html

https://dazhou.weibow.com/news/show-3821.html

https://dazhou.weibow.com/news/show-3820.html

https://dazhou.weibow.com/group/show-3819.html

https://dazhou.weibow.com/brand/show-3818.html

https://dazhou.weibow.com/mall/show-3817.html

https://dazhou.weibow.com/news/show-3816.html

https://dazhou.weibow.com/know/show-3815.html

https://dazhou.weibow.com/group/show-3814.html

https://dazhou.weibow.com/exhibit/show-3813.html

https://dazhou.weibow.com/buy/show-3812.html

https://dazhou.weibow.com/news/show-3811.html

https://dazhou.weibow.com/group/show-3810.html

https://dazhou.weibow.com/buy/show-3809.html

https://dazhou.weibow.com/quote/show-3808.html

https://dazhou.weibow.com/job/show-3807.html

https://dazhou.weibow.com/job/show-3806.html

https://dazhou.weibow.com/news/show-3805.html

https://dazhou.weibow.com/buy/show-3804.html

https://dazhou.weibow.com/invest/show-3803.html

https://dazhou.weibow.com/buy/show-3802.html

https://dazhou.weibow.com/group/show-3801.html

https://dazhou.weibow.com/news/show-3800.html

https://dazhou.weibow.com/sell/show-3799.html

https://dazhou.weibow.com/exhibit/show-3798.html

https://dazhou.weibow.com/job/show-3797.html

https://dazhou.weibow.com/news/show-3796.html

https://dazhou.weibow.com/mall/show-3795.html

https://dazhou.weibow.com/job/show-3794.html

https://dazhou.weibow.com/mall/show-3793.html

https://dazhou.weibow.com/exhibit/show-3792.html

https://dazhou.weibow.com/mall/show-3791.html

https://dazhou.weibow.com/quote/show-3790.html

https://dazhou.weibow.com/invest/show-3789.html

https://dazhou.weibow.com/news/show-3788.html

https://dazhou.weibow.com/group/show-3787.html

https://dazhou.weibow.com/invest/show-3786.html

https://dazhou.weibow.com/mall/show-3785.html

https://dazhou.weibow.com/sell/show-3784.html

https://dazhou.weibow.com/invest/show-3783.html

https://dazhou.weibow.com/exhibit/show-3782.html

https://dazhou.weibow.com/sell/show-3781.html

https://dazhou.weibow.com/job/show-3780.html

https://dazhou.weibow.com/job/show-3779.html

https://dazhou.weibow.com/group/show-3778.html

https://dazhou.weibow.com/mall/show-3777.html

https://dazhou.weibow.com/job/show-3776.html

https://dazhou.weibow.com/news/show-3775.html

https://dazhou.weibow.com/buy/show-3774.html

https://dazhou.weibow.com/quote/show-3773.html

https://dazhou.weibow.com/invest/show-3772.html

https://dazhou.weibow.com/know/show-3771.html

https://dazhou.weibow.com/group/show-3770.html

https://dazhou.weibow.com/quote/show-3769.html

https://dazhou.weibow.com/brand/show-3768.html

https://dazhou.weibow.com/know/show-3767.html

https://dazhou.weibow.com/brand/show-3766.html

https://dazhou.weibow.com/invest/show-3765.html

https://dazhou.weibow.com/buy/show-3764.html

https://dazhou.weibow.com/job/show-3763.html

https://dazhou.weibow.com/exhibit/show-3762.html

https://dazhou.weibow.com/buy/show-3761.html

https://dazhou.weibow.com/know/show-3760.html

https://dazhou.weibow.com/buy/show-3759.html

https://dazhou.weibow.com/quote/show-3758.html

https://dazhou.weibow.com/know/show-3757.html

https://dazhou.weibow.com/job/show-3756.html

https://dazhou.weibow.com/group/show-3755.html

https://dazhou.weibow.com/news/show-3754.html

https://dazhou.weibow.com/sell/show-3753.html

https://dazhou.weibow.com/quote/show-3752.html

https://dazhou.weibow.com/mall/show-3751.html

https://dazhou.weibow.com/sell/show-3750.html

https://dazhou.weibow.com/quote/show-3749.html

https://dazhou.weibow.com/buy/show-3748.html

https://dazhou.weibow.com/quote/show-3747.html

https://dazhou.weibow.com/know/show-3746.html

https://dazhou.weibow.com/job/show-3745.html

https://dazhou.weibow.com/group/show-3744.html

https://dazhou.weibow.com/buy/show-3743.html

https://dazhou.weibow.com/group/show-3742.html

https://dazhou.weibow.com/group/show-3741.html

https://dazhou.weibow.com/job/show-3740.html

https://dazhou.weibow.com/sell/show-3739.html

https://dazhou.weibow.com/mall/show-3738.html

https://dazhou.weibow.com/quote/show-3737.html

https://dazhou.weibow.com/group/show-3736.html

https://dazhou.weibow.com/job/show-3735.html

https://dazhou.weibow.com/brand/show-3734.html

https://dazhou.weibow.com/buy/show-3733.html

https://dazhou.weibow.com/know/show-3732.html

https://dazhou.weibow.com/invest/show-3731.html

https://dazhou.weibow.com/group/show-3730.html

https://dazhou.weibow.com/invest/show-3729.html

https://dazhou.weibow.com/buy/show-3728.html

https://dazhou.weibow.com/job/show-3727.html

https://dazhou.weibow.com/exhibit/show-3726.html

https://dazhou.weibow.com/brand/show-3725.html

https://dazhou.weibow.com/mall/show-3724.html

https://dazhou.weibow.com/buy/show-3723.html

https://dazhou.weibow.com/exhibit/show-3722.html

https://dazhou.weibow.com/know/show-3721.html

https://dazhou.weibow.com/brand/show-3720.html

https://dazhou.weibow.com/quote/show-3719.html

https://dazhou.weibow.com/news/show-3718.html

https://dazhou.weibow.com/news/show-3717.html

https://dazhou.weibow.com/group/show-3716.html

https://dazhou.weibow.com/sell/show-3715.html

https://dazhou.weibow.com/group/show-3714.html

https://dazhou.weibow.com/job/show-3713.html

https://dazhou.weibow.com/invest/show-3712.html

https://dazhou.weibow.com/brand/show-3711.html

https://dazhou.weibow.com/invest/show-3710.html

https://dazhou.weibow.com/quote/show-3709.html

https://dazhou.weibow.com/news/show-3708.html

https://dazhou.weibow.com/quote/show-3707.html

https://dazhou.weibow.com/group/show-3706.html

https://dazhou.weibow.com/know/show-3705.html

https://dazhou.weibow.com/buy/show-3704.html

https://dazhou.weibow.com/news/show-3703.html

https://dazhou.weibow.com/sell/show-3702.html

https://dazhou.weibow.com/job/show-3701.html

https://dazhou.weibow.com/news/show-3700.html

https://dazhou.weibow.com/know/show-3699.html

https://dazhou.weibow.com/know/show-3698.html

https://dazhou.weibow.com/quote/show-3697.html

https://dazhou.weibow.com/know/show-3696.html

https://dazhou.weibow.com/job/show-3695.html

https://dazhou.weibow.com/sell/show-3694.html

https://dazhou.weibow.com/quote/show-3693.html

https://dazhou.weibow.com/exhibit/show-3692.html

https://dazhou.weibow.com/exhibit/show-3691.html

https://dazhou.weibow.com/job/show-3690.html

https://dazhou.weibow.com/group/show-3689.html

https://dazhou.weibow.com/know/show-3688.html

https://dazhou.weibow.com/quote/show-3687.html

https://dazhou.weibow.com/group/show-3686.html

https://dazhou.weibow.com/group/show-3685.html

https://dazhou.weibow.com/news/show-3684.html

https://dazhou.weibow.com/quote/show-3683.html

https://dazhou.weibow.com/brand/show-3682.html

https://dazhou.weibow.com/know/show-3681.html

https://dazhou.weibow.com/brand/show-3680.html

https://dazhou.weibow.com/job/show-3679.html

https://dazhou.weibow.com/sell/show-3678.html

https://dazhou.weibow.com/invest/show-3677.html

https://dazhou.weibow.com/job/show-3676.html

https://dazhou.weibow.com/quote/show-3675.html

https://dazhou.weibow.com/quote/show-3674.html

https://dazhou.weibow.com/job/show-3673.html

https://dazhou.weibow.com/job/show-3672.html

https://dazhou.weibow.com/group/show-3671.html

https://dazhou.weibow.com/brand/show-3670.html

https://dazhou.weibow.com/news/show-3669.html

https://dazhou.weibow.com/exhibit/show-3668.html

https://dazhou.weibow.com/mall/show-3667.html

https://dazhou.weibow.com/sell/show-3666.html

https://dazhou.weibow.com/know/show-3665.html

https://dazhou.weibow.com/news/show-3664.html

https://dazhou.weibow.com/invest/show-3663.html

https://dazhou.weibow.com/job/show-3662.html

https://dazhou.weibow.com/job/show-3661.html

https://dazhou.weibow.com/invest/show-3660.html

https://dazhou.weibow.com/brand/show-3659.html

https://dazhou.weibow.com/group/show-3658.html

https://dazhou.weibow.com/sell/show-3657.html

https://dazhou.weibow.com/job/show-3656.html

https://dazhou.weibow.com/invest/show-3655.html

https://dazhou.weibow.com/quote/show-3654.html

https://dazhou.weibow.com/job/show-3653.html

https://dazhou.weibow.com/mall/show-3652.html

https://dazhou.weibow.com/job/show-3651.html

https://dazhou.weibow.com/sell/show-3650.html

https://dazhou.weibow.com/mall/show-3649.html

https://dazhou.weibow.com/brand/show-3648.html

https://dazhou.weibow.com/invest/show-3647.html

https://dazhou.weibow.com/sell/show-3646.html

https://dazhou.weibow.com/job/show-3645.html

https://dazhou.weibow.com/sell/show-3644.html

https://dazhou.weibow.com/group/show-3643.html

https://dazhou.weibow.com/quote/show-3642.html

https://dazhou.weibow.com/buy/show-3641.html

https://dazhou.weibow.com/sell/show-3640.html

https://dazhou.weibow.com/quote/show-3639.html

https://dazhou.weibow.com/quote/show-3638.html

https://dazhou.weibow.com/invest/show-3637.html

https://dazhou.weibow.com/group/show-3636.html

https://dazhou.weibow.com/buy/show-3635.html