One thing you can do if You don't have any other network provider exept jio and you need internet through the router you can get a new sim and its gonna work fine but don't insert it to a 5g phone...

@Abhijit_Ghosh10 tplink is not responding on it now man i think they don't care about their users

@senpoos1 wasted my 9k on this mr600 router

@senpoos1 They are just giving excuses man not trying to find solution for the issue worst customer support ever

@Sunshine i wanna confirm that the troubleshooting you provided dont work for the issue and just giving same link please try to find solution for the issue

@KalyanHalder Same here man and i think they don't care about this because it has been 2 months for this issue i mailed them with all the screenshots they said they are working on it but still no...