I have this router TP-LINK TL-WR841N (300 mbps 2.4Ghz). My ISP provided me 30mbps/4mbps and on Wifi I always got about the same.
BUT, today, my ISP has changed and provides me 70mbps/10mbps. With an Ethernet cable, I get about 65mbps/9mbps so... perfect.
BUT, on Wifi, I can't reach more than about 32mbps in download ! Upload is perfect (~9mbps)
Am I wrong or a 300mbps Wifi router should be enough for my 70mbps ISP ? or I'm totally wrong ?
I really hope someone will help me to understand this, thank you =)
51 Answer
Unlike wired connections, which are stable and reliable, wireless connection on the other hand, as the medium is open and shared, they are not. On wireless connections speeds vary widely depending on various conditions, such as number of overlapping channels (number of AP's and STA near you competing for signal on the same channel), signal attenuation (loss of signal strength because of distance or when it has to go through walls or other objects), and the list goes on and on. For you to achieve the maximum advertised throughput, the PRx has to be equal or higher than a certain power, called the Srx (Sensivity), sometimes the manufacturer advertises this value, other times it does not.
Are you near your router while you're testing, or are you in another room? How many walls are between your router and the STA (Laptop/Desktop) you're testing?
If you go to Control Panel/Network and Internet/Network Connections, and double click your wireless adapter, what's the advertised speed and signal quality?
How many AP's do you have near you? Can you download Inssider --> and run it to check how many overlapping networks are there?
Regards.
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