和系统无关系,和设置有关,或者和当时的网络有关,手机设置如下:<br>1. 先找到手机上的设置,然后出现下图这个画面<br><img src="https://iknow-pic.cdn.bcebos.com/faf2b2119313b07e1e5de2ea07d7912396dd8c74?x-bce-process=image/resize,m_lfit,w_600,h_800,limit_1" max-height="200"><br>2. 找到手机上的wifi设置,点击忽略此设置,将原来的设置取消,再从新接入网络,看看是否解决问题。<br><img src="https://iknow-pic.cdn.bcebos.com/d31b0ef41bd5ad6e9921d6088acb39dbb7fd3c73?x-bce-process=image/resize,m_lfit,w_600,h_800,limit_1" max-height="200"><br>3. 选择;还原网络设置了。选择通用--还原网络设置即可。<br><img src="https://iknow-pic.cdn.bcebos.com/4bed2e738bd4b31c07e026598cd6277f9f2ff870?x-bce-process=image/resize,m_lfit,w_600,h_800,limit_1" max-height="200"><br><img src="https://iknow-pic.cdn.bcebos.com/c75c10385343fbf2621f1bc1bb7eca8065388f25?x-bce-process=image/resize,m_lfit,w_600,h_800,limit_1" max-height="200">