Problem in esp32 and esp8266 on BSNL network for http requests.

[Yatheesha]

I have a problem with esp32 and esp8266. While i am requesting http post i am getting response code 200 for all network except BSNL. Even pinging to google is also not working in bsnl network. I am using arduino-esp32 sdk but I tested with esp-idf also. Both having the same problem. I also tested with two different bsnl network in different location. Both having the same problem. But its working fine for other network like airtel, vodafone, hathway etc. What may be the problem in esp on BSNL network. Please help me with this issue.