Strict NAT detected. No UPnP or NAT-PMP detected.

[Vishal3021]

I am getting this issue while playing warframe. I tried enabling UPnP on the router and also tried forwarding the UDP ports to static IP from Advanced NAT option in the router.
Some times the error change to "Permit UDP ports on you firewall". I checked the windows inbound and outbound rule and for UDP its any any. I raised the ticket with airtel but they are saying everything is enable from their end.

What is the possible solution? Is there any good ISP in pune who offers open NAT and not strictly prohibiting the access?

 

[Lolita_Magnum]

You will not get Open NAT even with a Static IP.
To get Open NAT, you'd need a public IP directly configured on your system, which would be a security nightmare.

 

[Vishal3021]

Is there a way i can resolve this? Airtel is using CGNAT which is the reason I am facing this issue. Is there any good local ISP vendor in Pune?