In Modem, check user Isolation settings.
On your H/S, manually Configure the WiFi Hotspot using Google/BlockAid DNS & then see if it works. If not try to lend some help from your friends by means of swapping your Router/Modem with theirs.
Apni Maximum Up/Down stream da status bhi check karo, esdi value 2048/512 Kbps (up stream will be as per base plan) te uppar honi chahidi, je nahi hegi te apne Broadband de SDE nu chheti milo.
fer bhi kuch naa hove te OLX hega he.