Update:
Registered a complaint again and this time I followed @gmaster advice and taunted with threat to disconnect if router not replaced with another one which has the DHCP, DNS and other settings unlocked or enable these in my current router via backend. Got a call back after 1 reminder email and 3 days.
The technician came and I told him a fake made issue with cannot be replicated. I told him all my devices just lose internet connection for 2-3 mins randomly with no LOS led in the router. Then everything will work for 3/4 hours and again the same issue. I told him a technician had previously visited and tried resetting the router but it did not fix it. He asked me for how long did you hold the reset button and since I knew about 30-30-30 technique that is used for hard resetting routers, I told him he was holding the reset button for 2/3 mins or something like that.
Finally then he called up his TL and they created an order ID for replacing the router and they issued me DZSI H660GM-A as the replacement router.
This router is much better than the trash GX2122A and has most settings unlocked. I haven't spent much time with it and I'll add some pictures later for anyone who needs it. Enabling or Disabling DCHP server was not available. but DCHP address reservation etc was unlocked.
Registered a complaint again and this time I followed @gmaster advice and taunted with threat to disconnect if router not replaced with another one which has the DHCP, DNS and other settings unlocked or enable these in my current router via backend. Got a call back after 1 reminder email and 3 days.
The technician came and I told him a fake made issue with cannot be replicated. I told him all my devices just lose internet connection for 2-3 mins randomly with no LOS led in the router. Then everything will work for 3/4 hours and again the same issue. I told him a technician had previously visited and tried resetting the router but it did not fix it. He asked me for how long did you hold the reset button and since I knew about 30-30-30 technique that is used for hard resetting routers, I told him he was holding the reset button for 2/3 mins or something like that.
Finally then he called up his TL and they created an order ID for replacing the router and they issued me DZSI H660GM-A as the replacement router.
This router is much better than the trash GX2122A and has most settings unlocked. I haven't spent much time with it and I'll add some pictures later for anyone who needs it. Enabling or Disabling DCHP server was not available. but DCHP address reservation etc was unlocked.
