1、网络故障导致无法连接；
2、手机设置问题，导致无法连接；
3、有时候appstore连接不上是因为网络不稳定所致；
4、有可能是系统版本所致。
无法连接到appstore怎么办？
1、首先考虑网络的问题。在设置菜单栏选择无限局域网。
/iknow-pic.cdn.bcebos.com/a9d3fd1f4134970a5842646499cad1c8a7865d43"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/a9d3fd1f4134970a5842646499cad1c8a7865d43?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/a9d3fd1f4134970a5842646499cad1c8a7865d43"/>
2、点击所连接无线网络后感叹号。
/iknow-pic.cdn.bcebos.com/bd315c6034a85edfddbe8a6845540923dd54754e"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/bd315c6034a85edfddbe8a6845540923dd54754e?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/bd315c6034a85edfddbe8a6845540923dd54754e"/>
3、修改dns为8.8.8.8，此时看问题是否解决。
/iknow-pic.cdn.bcebos.com/d058ccbf6c81800a47e7fd45bd3533fa828b477e"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/d058ccbf6c81800a47e7fd45bd3533fa828b477e?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/d058ccbf6c81800a47e7fd45bd3533fa828b477e"/>
4、若没有解决可在时间与日期设置菜单栏，将自动设置关闭。看问题是否解决。
/iknow-pic.cdn.bcebos.com/77c6a7efce1b9d16bc5bee2affdeb48f8d5464d8"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/77c6a7efce1b9d16bc5bee2affdeb48f8d5464d8?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/77c6a7efce1b9d16bc5bee2affdeb48f8d5464d8"/>
5、若还是不行，可以在还原菜单栏选择还原网络设置。
/iknow-pic.cdn.bcebos.com/adaf2edda3cc7cd9a17b40923501213fb80e9122"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/adaf2edda3cc7cd9a17b40923501213fb80e9122?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/adaf2edda3cc7cd9a17b40923501213fb80e9122"/>