connecting devices on the Telus WiFi

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Neighbour

I have a router, is written on it: TELUS router. I have a new Samsung smarttv, and I have a computer running Win 10 newest version. Furthermore, I use iPadPro and iPhoneX. I have 2 problems, caused probably by the same settingsproblem. 

1. If I want connect my iPad or iPhone, using Apple Air Play, I get a message: no device on the network.

2. If I want to use the picture transfer from ACDsee, I get the same message.

The devices are on the same network,because, I do have only one, and all of them are connected to the Internet.

Until now, it happened already that I was able to connect to the tv, resp. computer, I don't know, how, and since than, I have the same messages.