Usually, misconfiguration or poor communication between the extender and the main router causes a WiFi extender causes an issue of joining correctly but giving no internet access. This issue is quite common in RangeXTD WiFi booster users, this problem usually results from either improper setup or signal relay issues. From device installation to network parameter verification using the... https://trendyinfousa.com/how-to-solve-no-internet-after-connecting-to-rangextd-extender/