Network/Connectivity Worst update 10.3.4... WiFi keeps disconnecting!!

  1. Z1542905802206
    Cupcake Jul 31, 2020

    Z1542905802206 , Jul 31, 2020 :
    I need help for Oneplus 6T phone, after recent update (10.3.4) WiFi keeps disconnecting automatically after 2-3 minutes usage. This problem persists when I play games that requires internet connectivity, streaming videos online.....basically anything that requires WiFi connectivity sucks a lot.
    Instead of using WiFi, my phone takes up LTE connectivity usage and last month I used 50GB, luckily I'm on unlimited data plan on my mobile....now i don't have this kind of luxury.
    Please help asap.
    Tried reset option for WiFi thing in settings, but didn't help.
    Also, tried using MAC address default even this didn't help.
    What am i supposed to do at this point?
    Can anyone suggest different approach that might work here?