You could restrict the available bandwidth in the advanced wireless setup for the router (it is buried under advanced security settings for wireless) to a fixed rate that ranges from 1 to 54mbps. The problem is that would be the limit even if the desktop wasn't in use.
However I doubt you really need to do anything unless your laptop and router supports 802.11n. There are very few Verizon supplied routers out there that support 802.11n. So if you are using the Verizon supplied router, 802.11g is probably as fast as it gets. IN theory 802.11g can reach 54mbps, real world tends to be a lot lower.
Absent 802.11n support . It is pretty hard to get 802.11g (and impossible for 802.11b) to be much beyond about 10mbps bandwidth. 802.11n will support considerably higher data rates.
In my experience the the wireless hardware adapter on a laptop with 802.11g is rarely configured with enough buffering to reach 54mbps, even if there were no other impediments. Usually there are plenty of other things to limit the wireless performance.
So the short answer is what you want is likely to happen anyway.
I have a main desktop computer connected to Fios 25/25 and a laptop that is connected via WiFi. Is it possible to limit the WiFi bandwidth when both computers are being used at the same time? I would like the desktop to have access to most of the bandwidth.
Yes there is a way to prioritize traffic down to the specific device. When logged into the router, click the ADVANCED tab at the top. Then on the bottom left hand side go to QUALITY OF SERVICE. Click the ADD button to the right of WIRELESS ACCESS POINT RULES. The SOURCE and DESTINATION addresses should be selected to the computer you want to limit access to. Check the PRIORITY box and set the level to 0-LOW PRIORITY. Change the APPLY QOS ON to the value PACKETS. Lastly click APPLY. Now that one computer has the lowest priority so other devices on your network will get the preferred traffic.
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