Computer won't pick up/recognise my 5GHz network

PolarBear27

Honorable
Aug 3, 2014
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10,530
So I've got the highest Virgin Media Internet package which I should be getting 144Mbps at max. It's the SuperHub 2 so it came with dual 2.4GHz and 5GHz. But my computer only picks up the 2.4GHz even though I've got a TP-Link TL-WN951N Wireless N PCI Adapter. Both my adapter and computer are compatible with 5GHz but it never seems to find it. I know the 5GHz works because my phone and other family members laptops can connect to it. Thank you in advanced if you are able to help. If any more information is required just let me know and I will do my best to find it.
 
Solution
The specs on that card clearly say it only support 2.4g.

Be very careful with the numbers the connection speed to the router that the wireless device on your computer says has nothing to do with the speed you get from the ISP.

You always want to run the speed tests from wired ports to see what speed the ISP is really delivering. In most cases the wireless will be somewhat slower.

From the sounds of it the card and the router are negotiating a slower speed because of signal level or quality. You could be running on a different channel than you where before especially if you just let the router pick it. You must many times manually set the channel and things like the channel width and things like the guard intervals to get optimum...
I did post the right one. When I bought it I thought it said 5g. I was told 5g was faster so is that not the case? Does it not speed up the internet in anyway? My internet package is supposed to be giving me a max of 144mbps but it's only giving me 54mbps. We recently had a virgin man look at out internet because it was messing about. Before I was averaging 130mbps as expected but since he changed the SuperHub it has gone down to 54mbps.
 
The specs on that card clearly say it only support 2.4g.

Be very careful with the numbers the connection speed to the router that the wireless device on your computer says has nothing to do with the speed you get from the ISP.

You always want to run the speed tests from wired ports to see what speed the ISP is really delivering. In most cases the wireless will be somewhat slower.

From the sounds of it the card and the router are negotiating a slower speed because of signal level or quality. You could be running on a different channel than you where before especially if you just let the router pick it. You must many times manually set the channel and things like the channel width and things like the guard intervals to get optimum speeds.
 
Solution
Slower speeds could also depend on wireless settings in the router/hub. Set it to pure wireless N. Sometimes the default is 'mixed' which isnt needed unless you have older devices that use wireless G.

Also make sure you are on WPA2 with AES for security.

Bill001g is also correct about the channels. Try channel 1, 6, or 11. Those are the standard channels for 2.4Ghz. Your neighbors might be crowding one of them, if you are on the same channel it can make your network slower.