Should I buy a USB Wi-Fi adapter?

    Greetings, dear habrolyudi!
    So I decided to share with you my feelings about the recent purchase. At the next move, he dismantled the boxes, and again taking out two pairs of a ten-meter twisted pair - he decided to "get away" from the wires. Quick google gave many solutions, the budget USB version of the Dlink DWA-131 came up. It looks like this:
    imageimage

    At first glance, a "harmless subject", but it only seems.

    I’ll talk a little about my pets. There is a desktop with a VPN connection to the outside world, and an Acer Aspire 5740G laptop. Sometimes a friend comes with the same laptop. And I want the Internet to be simultaneously and everywhere. All devices have Windows 7 Ultimate.

    Gradually began to implement. I ordered this "mega subject" in the online store. Not even two days have passed since he was with me. I also read that it is desirable that the adapter is in an upright position, and along the way I bought a usb extension cord. He came home and work began to boil.

    Here's what I received in return for $ 33:
    image

    I will give some characteristics of the device:

    Standards
    + IEEE 802.11b
    + IEEE 802.11g
    + IEEE 802.11n

    Frequency range
    2.4 GHz to 2.4835 GHz

    Transmission speed
    + 802.11b: 11, 5.5, 2, and 1 Mbps
    + 802.11g: 6.9,12,18,24,36,48,54 Mbps
    + 802.11n: up to 300 Mbps

    Operating temperature
    0˚ to 40 ОтC

    I did everything according to the instructions, first I installed the software that was on the disk, then I inserted the adapter, the drivers were installed, and at the end of the installation the first “Warning message” - “No software device found, try your luck again!”. Ignored the message, checked in the device manager - the adapter was detected. I started testing the device. Attempts to find a network or create an ad-hoc connection were unsuccessful. A lot of time was spent, but nothing came of it. Then he asked Google, fortunately, Google answered - the solution was found (and while it was online, Windows managed to find new firewood for the adapter). At first I decided to check it might work with new drivers - but unfortunately nothing has changed.

    It turns out that Kaspersky Anti-Virus was to blame for everything; for some reason unknown to me, it blocked the adapter. The decision said that the antivirus must be removed, then install the software, and then only install the antivirus back. So did. And it worked.

    I created an Ad-Hoc network, in the Internet connection settings I set permissions for other network users to use it, picked up a laptop from it, the Internet went up on my laptop, but there was no access to resources shared between computers. And after an hour, the Internet fell off on a laptop. Windows responded to the re-creation of the Ad-Hoc network that it could not establish a connection with it and fell.

    After that, I installed the Connectify program.. Configured, picked up from the laptop, the Internet went up, and shared resources became available. But the speed did not satisfy me at all.
    Files were transferred over the network, with a maximum of 2500 kB / s, the file was downloaded from the Internet on average 5-15 kB / s, there were short-term downloads of up to 50 kB / s (Internet channel 2 Mb / s - downloads about 200 kB / s).
    For comparison, when using Connectify, between two laptops the file transfer speed was 9000-11000 kb / s.

    I decided to check the temperature of this usb-wifi adapter - it turned out to be very hot, in 5 minutes, the device managed to warm up to 54 degrees (which seemed very suspicious), the manufacturer’s website said that the operating temperature was from 0 to 40 degrees, accordingly suggested that the work the device will be unstable - disconnection is possible.

    image

    After spending the weekend setting up the network, I thought it would be better if I bought a normal Access point.

    And at the end of the post the pros and cons of the usb-wi-fi adapter:

    For:
    - Small size of the device.
    - Relatively low cost.
    - Nice blue LED on the WPS (WiFi Protection Setup) button.

    Cons:
    - Heats up very much.
    - Low bit rate.
    - Not useful WPS button.

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