![]() I changed my 5Ghz channel from 40 to 48 and my noise dropped to 0 (zero) dBm!Īnd with this improvement, my internet speed WiFi went back up to 120Mbit download, yay!:Īpparantly, the -95dBm noise was just about enough to interfere with the quality of my connection. So, my line was pretty reasonable I’d say?īut, I wouldn’t be me if I didn’t try to get it better, so I did. In these, the more negative the number is, the smaller its signal is. For most Wi-Fi networks, you will see the signal measurement be between around -10 and -70 dBm, and should see the noise between -80 to -100 dBm. I could see that my 5Ghz network had a signal strength of -49dBm and noise of -95dBm. As long as something is ‘leaking’ noise on the same channel as the WiFi, it could affect the quality of the line. Could be anything, from refrigerators to microwaves. ![]() WiFi is ‘just’ a radio signal so it has background-noise. But first we need to know more about WiFi. Then I downloaded the iStumbler tool (Freeware, only asks you regularly to register). Still, the 5Ghz was still slow as hell while it was connected with a 300Mbit speed. I entered my configuration tool and set the 2.4Ghz channel to 6 and that one was kinda back to acceptable speeds (not groundbreaking, but I only have 1 computer connected to this band anyway). OSX advices me to use channel 2 or 6 for 2.4Ghz and 40 for the 5Ghz. The 2.4Ghz was currently on Channel 1 and the 5Ghz on Channel 40. Also, OS-X gives us (probably) the best channel to be used.įrom my scan, I could see 7 networks (including my own) in total, 6 on the 2.4Ghz and 1 on the 5Ghz. This will show all other networks and on which channel they are connected. Especially the “Scan” (CMD-4) is a informative one. As soon as the window opens, choose “Window” from the top menu and there you’ll find some interesting things. There you can also go to the “Wireless Diagnostics” which has some nice features. So I ran the build-in WiFi diagnostic tools (ALT+click on Apple’s WiFi symbol give you good details here) Obviously, my first suspect was the actual Internet speed, so I put a cable in the Time Capsule and I got a nice 186Mbit average (on a 200Mbit connection, which is not too bad). While iStumbler is running on your Mac, any Wi-Fi network or Bluetooth device around it will be discovered almost instantly.Since a few days, we’ve been experiencing a very slow WiFi signal in the house, even when we’re within 1 meter distance of the Time Capsule, the different speedtests won’t go above 10Mbit (on both 5Ghz and 2.4Ghz, the latter was even worse with max 4Mbit). Also, you can make a wide range of tweaks to its behavior. It provides a wide range of information for each discovered network or device. The application is capable of finding all Wi-Fi networks, Bluetooth devices and Bonjour services around your Mac. You can set it to remember discovered networks for a certain amount of time, to prevent it from using too much memory, set it to scan for networks or devices more often, to automatically select the best network and much more. Other useful options can be found in the application's Preferences panel. When viewing connected or discoverable Bluetooth devices, you may click different options, in the upper right corner of the interface, to set up new devices, manually pair with them and send files. Double clicking a Wi-Fi network will display a connection monitor. You can interact with the listed items in different ways. ![]() ![]() For example, it can show a Wi-Fi network's signal strength, encryption status, used protocol and much more. In addition, iStumbler provides you with a wide range of details for each listed element. Discovered Wi-Fi hotspots, Bluetooth devices and so on are listed on a compact user interface, in separate sections. The application scans for the aforementioned services or devices automatically, according to a user-defined time frame. SourceForge ranks the best alternatives to iStumbler in 2023. The application can also discover Bluetooth devices, Bonjour services, as well as location information. Alternatives to iStumbler Compare iStumbler alternatives for your business or organization using the curated list below. This lightweight utility can discover all Wi-Fi networks around a Mac, without asking for any user intervention. If you want to know what networks can be found around you and how fast they are, iStumbler can help you. Wi-Fi networks can be found in many public places nowadays and we can connect and use them for free, with any portable device.
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