Hi I have TPLINK XC220 G3V router and having issues with BSNL, tried with all the different firmwares provided by the tech support but problem  remains same. My main problem was VOIP issue but as per tech support I upgraded my device default firmware to the one provided by them after that my download and upload speed hampered and getting disconnected by the isp. But with the default firmware this disconnection issue was not there except the voip. So I would like to check my tplink router with  the default firmware (which is (Datecode2301051715) can you please provide the default firmware which comes with the device it self. Datecode 2301051715.