Broadcom Wireless Adapter Problem (Fix exists but not really a fix)

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silentspeedz

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Apr 8, 2014
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Hi, I have a Broadcom 802.11ac wireless adapter in my laptop and it's been spiking constantly with online games being unplayable (Ping is incredibly high). The speed fluctuates between 1 to 40mbps while it stays at a stable 99mbps when it is directly connected with an ethernet cable. I've searched around and found a "fix" by disabling WMM (wifi multimedia) in the wireless adapter's advanced settings but it's not much of a fix. Online games have great ping and the download speeds are consistent if the WMM is disabled but the overall download/upload speed is cut down by atleast 10 times the original speed. I'm getting a consistent speed of 8 to 10 mbps when I should be getting 99mbps. I have also updated my wireless adapter driver to the latest from the lenovo website. Does anybody know if disabling WMM is safe and whether I should keep it disabled and deal with the slow internet speed?
 
Solution
ronintexas
Wireless adapters are really notorious for having high ping times and fluctuating speeds - especially while gaming. To get WMM working properly, the QOS on the router must be configured to take advantage of it. WMM sets up optimal Multimedia settings for streaming video (i.e. Netflix, etc). Your best connections will always be an ethernet cable.

With each wi-fi adapter, the adapter and the router need to be optimized to work with each other to get max throughput. You might get lucky with another adapter, or you may have to go through several to find one that works great with your router.
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ronintexas

ronintexas

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Dec 10, 2012
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Wireless adapters are really notorious for having high ping times and fluctuating speeds - especially while gaming. To get WMM working properly, the QOS on the router must be configured to take advantage of it. WMM sets up optimal Multimedia settings for streaming video (i.e. Netflix, etc). Your best connections will always be an ethernet cable.

With each wi-fi adapter, the adapter and the router need to be optimized to work with each other to get max throughput. You might get lucky with another adapter, or you may have to go through several to find one that works great with your router.
 
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Solution
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silentspeedz

Honorable
Apr 8, 2014
34
0
10,530
Thanks so much for your fast response!

Do you think buying a usb wireless adapter will solve the problem (turning off internal wifi card and using only the usb adapter)? It's just strange to see a new laptop struggling to use wifi properly when my old laptop does it flawlessly. (New: Lenovo y50 Old: Lenovo s510p)
 
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ronintexas

ronintexas

Judicious
Dec 10, 2012
5,911
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32,960
Different adapters will perform differently. Even moving the laptop an inch or so can have an effect on the reception. The angle of the laptop will also have an effect. I try to avoid wireless like the plague....I have never had a "great experience" only using wi-fi.....
 
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