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Slow internet on 1 laptop but not the others.
Boggin:
Did the netsh command show up any other local users with strong signal strengths on the same or adjacent channels to you ?
Normally when speed is pulled down it's because of background programs/tasks, but as you have full speed when wired, that may not be it but wireless overheads can.
Resource Monitor may show what is taking up the bandwidth.
TCP Connections will show any Packet loss and the Latency for each connection.
Shane:
Best test to do, if you can, try someone elses wireless. This way you are connecting to another router and you can see how it does.
If the problem is still there then you know it is the adapter. If it works fine then you know it is a compatibility problem with the router. The router itself is fine since it does fine for the other devices. :wink:
Not all wireless adapters are the same, just like not all computers are the same.
Shane
silents429:
--- Quote from: Shane on April 08, 2015, 01:49:29 pm ---Best test to do, if you can, try someone elses wireless. This way you are connecting to another router and you can see how it does.
If the problem is still there then you know it is the adapter. If it works fine then you know it is a compatibility problem with the router. The router itself is fine since it does fine for the other devices. :wink:
Not all wireless adapters are the same, just like not all computers are the same.
Shane
--- End quote ---
If it were the router what settings would be affecting just my laptop?
I get full speeds when I am at the library still.
Shane:
May not be any settings, might be a compatibility problem where it simply doesn't work the best with certain adapters.
Point is this, if you can take the laptop to another place, use their wireless and it works full speed and you get the speeds you except then the adapter and the drivers are fine.
Then for the router, all other devices in the house play nice with it and all work great. This means the router is fine to, it works.
The problem then is that the router and the adapter don't play nice with each other.
That comes down to the chip sets in the router and on the adapter and they may have some small differences in the way they are handling the wireless that is causing it to not get the full speed. There is a LOT that goes into making wireless work, so this is why you will see problems like this.
But what I have seen is the newer adapters seem to have less problems like this, mainly because the new standards that are being followed. Older cards however sometimes have trouble with newer routers because the routers are following newer standards than what the older adapter did.
Shane
Boggin:
You could try using inSSIDer3 and its Link Score to find the best channel http://www.techspot.com/downloads/5936-inssider.html
Netalyzr could also give you some insight as to your WiFi performance, but as Shane has said, some wireless adapters and routers don't mix very well which is why you probably get normal speeds at the library but not at home.
Netalyzr requires Java http://netalyzr.icsi.berkeley.edu/
You could also contact Lenovo Support https://support.lenovo.com/gb/en/selectproduct or your router support to see if there are any known issues between the wireless adapter and the make & model of your router.
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