Disable the onboard wifi and try some PC-Card or even USB wifi.
I've learned not to replace wifi cards in such laptops for reasons given in prior/ofter discussions.
Please excuse the length of this post, I wanted to be as detailed as possible...
I have have 5 laptops hooked up to my wireless network. 4 connect just fine and regularly achieve 15-20 mbps on Comcast's speed test. Downloading, streaming, and surfing are great.
However, there is one laptop that only reaches 3-5 mbps and cuts out completely at times, no matter the location in the house-- whether it is near or far from the router.
The specs on the problem laptop:
Gateway MX3701 1.6ghz 2gb RAM
Realtek RTL8185 Wireless Adapter
Windows XP Media Center Edition SP3
Usually, repairing the connection allows me to reconnect to the internet, however the signal remains low and slow. Sometimes it takes a few tries.
I thought the drivers may have been out of date, but installing the latest drivers did not help.
I thought that bandwidth was being exceeded, but despite turning off the other computers, there was no improvement. Even with all of them on, this laptop is the only one to ever have a problem.
I thought that perhaps there was signal interference, but this occurs no matter my location in the house, the nearest microwave is at least 40 feet away, and my household uses 5.8ghz phones.
I considered changing the channel of the router, but the fact that the rest of the computers connect just fine lead me to believe that perhaps some setting is incorrect in this laptop. Also, my router is the only one in the area that is on channel 6 (Used an app to check).
I've tried power-cycling the modem/router and even tweaked the TCP (Didn't help, so I restored to default). After many internet searches on different search engines, I cannot find the answer on my own.
Does anyone have an idea of what I can try next or of any settings I may have missed? Please let me know if you need additional information.
The computers that connect fine:
PowerBook G4 1.67ghz 2gb RAM - 10.4.11
Dell Inspiron E1405 1.6ghz 2gb RAM - Windows Vista SP2
Acer Apsire One 1.6ghz 1gb RAM - Windows XP SP3
Gateway M6307 1.6ghz 2gb RAM - Windows Vista SP2
Thanks in advance for any insight you can provide!