It looks like issue in your wifi , Just update your pc with latest wifi driver or use any external wifi card . i will recommand to use ASUS USB AC68 dual Band AC1900 which is best wifi card
Mobile App developer will easily understand the problem that how can fix this issue effectively. So you must be contact or get the Professional mobile app developer.
I have also faced a lot of difficulties with this same thing, but when I reset the router following the tips on how to reset linksys router, it will be easier for you to solve all the issues on your router.
If it`s difficult to configure your router, you can find more information on sites like TP-link. Cause they work with such routers for years and have a good experience in solving various problems. They also can help with routers of other models.
The article is very good and meticulous, I am very impressed with your article, I hope you will have more interesting articles to share to readers, lots of useful information. candy crush soda