Fiber much less speed on Wi-Fi compared Ethernet.

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Location
DEHRADUN
ISP
BSNL
I have a 100Mbps plan. When I check speed on Ethernet, I get almost 100Mbps consistent. But when I switch to Wi-Fi and check speed, its mostly 35 to 45Mbps. I know speeds are slower on wireless but I am pretty sure there can't be a more than 50Mbps speed difference even LCO said that I should be getting around 70 to 80. He said it's a problem from the exchange that since I recently changed my plan, they haven't changed speed on profile or something... but it's been more than a week since I have changed the plan. The LCO came yesterday to check the hardware and said nothing was wrong and the thing about profile. I don't think that it's something from the exchange. Any idea what I can do to fix this or check?
 
Go to your wireless settings in your router/modem and set the Channel Bandwidth to 40MHz from 20MHz if it helps. Except that, I want to know which router you are using because it might be possible that router isn't capable to send enough bandwidth over WiFi. And yes, it has nothing to do with LCO because you are getting speed on ethernet so if it will be possible then you will get on WiFi too.
 
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What is your link speed?
You will get 50Mbps if link speed is ~72Mbps on 2.4Ghz
You get 70-80Mbps if your link speed is ~150Mbps on 2.4Ghz

There are also other factors such as interference
 
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Can you check max link speed on Wifi connection? Usually you get about half the link speed in actual transfer speeds.
 
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What is your link speed?
You will get 50Mbps if link speed is ~72Mbps on 2.4Ghz
You get 70-80Mbps if your link speed is ~150Mbps on 2.4Ghz

There are also other factors such as interference
72 on all devices, so that might be it but is there any way to fix it?
 


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@vishalrao 72 mbps but all my devices can go to 150 yet they dont

What do you mean "all your devices can go to 150" ? Are they branded as 150 mbps speeds? Then that is just a marketing trick, I have a 150 mbps TP-Link wifi PC add-in card that gives me max 72 mbps link speeds and around 70 mbps speeds right next to my router 😀
 
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I had a similar issue with that router. I was getting 90-100 on 100 mbps connection. Then after a software upgrade it just dropped to 40-50 mbps, even with the link speed at 144 mbps. I just got a new router and put that in bridge mode.
 
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Yes like @JB701 mentioned maybe your signal has interference from other sources or distance to router is more.
 
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