@AlokJain I suspect your network card is the problem... Can you send the name/model of the network card? Cuz my one, which is AX411 and AX210, can do 2.4Gbps on 160MHz and Channel 100-128, but...

@Kevin_Z I think his network card is limited to 1.2Gbps and not getting the full 2.4Gbps. And DNS doesn't always affect download speeds, that's ISP side, and not the DNS provider side. Speed test...

@AlokJain DNS is not related to your speeds. This is some sort of Internal issue which needs to be resolved

@AlokJain I think it's a server issue of some sort. The Desktop app tends to be lightweight and better at accuracy, with the web one being more detailed. I think there is a problem with the firmware...

@AlokJain Tested with 100 (DFS)? do that too If still the same result, test with stock ONT.

@AlokJain DFS channels are what you need to run 160MHz... I guess you should start testing without questioning too much. For that, Google is your friend.