Wireless Networking

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Wireless networking is anything related to the transfer of data between two (or more) devices without the use of a physical connection, ranging from getting advice on a new Bluetooth headset to configuring sophisticated enterprise level networks.

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I have a remote office that is a steel building with alot of copper piping and wires.  It is for an aggregate batch plant.  Cell phone coverage inside this building is almost zero.  I need internet in the buliding and of course a Verizon MIFI (which is what I wanted to use and have tried) does not work.  Is there a way I can attach something to the mifi and run it to the top of the building and to a wireless router or something and get better coverage or does EE have some other ideas on how I could have an internet device outside of the building and bring it into a router or possibly right into the desktop computer that needs the interent connection?
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Angular Fundamentals
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If you change a Sonicwall Wireless W0 from 2.4 to 5ghz do you need to rejoin all client devices to the wireless like a new wireless or can you just reboot the device?
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One of my clients wants to hard wire an ethernet connection to his other house. The houses are about 40 feet apart, and there is a 2ft wide path I will have to go through to get to the other house.

I know point to point wireless is an option, but my client insists on getting a wired connection. This is my first job wiring outside, so I'm brainstorming on how I can get it done. Any suggestions?

Thank you!
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Hello Everyone

How can I configure Linux wireless on a laptop to Not connect to public Wifi that has no password.?

Some of the commands I have been using need to have a SSID= to point to each Wifi network.
Is it possible to have only one SSID statement to point to all of them, similar to a wild card.
Example SSID=”*.*”

Example of what I currently have that can only point to one Wifi network.
edit /etc/wpa_supplicant.conf      
network={
  SSID=”CableWifi”  
  key_mgmt=NONE
  disable=1
}
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Afternoon gents.   One of our clients has a satellite office that has been experiencing severe drops in wireless connectivity.  I am going to be going out to the location to troubleshoot the connectivity.   The drops are not happening during tunnel connections they are just in general.   Currently I am told all the equipment is under a desk including the device giving out wireless access.   I was given the equipment they have which is included in this thread.   Has anyone seen this combination of equipment together ever and seen wireless drops happen?
I currently have no remote access to any of this equipment and will not be able to troubleshoot it until I am onsite but I wanted to see if I could get a jump on things and reach out to you for some assistance perhaps you may have seen this setup before and may know where the wireless drops are happening.   This is especially happening on one HP Laptop that I have fully reformatted, installed the latest drivers on including HP Support drivers for the NICS firmware yadda yadda.    They need this to be stable as they tunnel to their other office which has a WatchGuard firewall in place.  

Here is what they have from what has been explained to me.   I am unsure if firmware can be flashed? Or does the modem or firewall whichever is giving out wireless access need to be put on a desk and not under a table?  


Here is the kicker, they will have a laptop on the desk right on top of where all this equipment is located under …
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I share a Bluetooth speaker booster with a colleague and every time I need it I have to ask my colleague to disconnect or “Forget this device” so I can use it.  How can I configure my mobile devices or the speaker to connect from one device and disconnect from the other?  (If possible)
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What are the variance of binary shift keying?
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I am configuring a new wireless system and I am preparing for the cut-over process.  The new Wireless has 'hidden ssids' and these SSIDs are different from the production SSID names on the older system.  

For example. the older WiFI used in production :
Employee Corporate WiFi = CWIFI
Guest WiFi = CGUEST
Corp. Printer WiFi = CPRINT

The new Wireless system has:
Employee Corporate WiFi = CWIFI-Test
Guest WiFi = CGUEST-Test
Corp. Printer WiFi = CPRINT-Test

I am planning to cut-over to the new system by turning off the older WiFi controllers and Access Points and then un-hide the new Wireless system SSIDs.  The plan is to use the same naming scheme in the new system that was used in the older system. Hopefully the users will not be confused.

With a few 'printers' and other 'devices' (not laptops) there was no need to 'forget' / 'Remove' the older SSID and then try to login via the new system; but, those specific SSIDs used a Pre-Shared Key(Corp. Printer).  I am wondering if the laptops will need to 'forget' the previous SSIDs in order to use the new system seamlessly?

The Employee WiFI is using 802.1X with RADIUS Servers using Network Policy Server registered in Active Directory.

The Guest WiFI is using a captive portal where the users wil be using a username/password.  

Any thoughts?
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What is a beacon frames? I am reading about  transmit power control, and I came across  the text beacon fame.

"Regulatory maximum power may be configured into an AP or station, or it may be learned from Beacon frames containing Country elements. "
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If the client station is transmitting at excess  power levels, would that prevent it from communicating with an Access Point?
Or does the access point communicate back to the client station to tell it to reduce it power level?
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If a device cannot meet the AP (Access Point) transmit power level, would this prevent let say a laptop from connecting to the AP?

Taken from a description of  transmit power control service.
Context: " An AP can specify the transit power of any or all stations that are associated with the AP."
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How much power is needed from  a client station to associate with an AP? I am thinking that the device, let say a laptop sends out a request when looking for APs.

Taken from a description  of Transmit Power Control service.
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What does ERC means in the following  text?: " The ERC mandates that radio cards operating in the 5 GHz band use TPC to abide by a maximum regulatory transmit power  and are able to alleviate transmission  power to avoid interference."
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What does "µs" mean?  I found it while reading https://www.adriangranados.com/blog/practical-intro-dfs
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What is a frequency band? Taken from the contents of a description of 802.11h
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“802.11a/g utilize  20 MHz channels, and tones on the side of each channel are not used to  protect the main carrier.” What does tones mean, in the previous sentence?


See for more context: “This paper presents an overview of discrete multitone (DMT) modulation/demodulation systems with particular emphasis on channel equalization techniques. Three popular time-domain equalization techniques are discussed, including the minimum mean-squared error, the shortening signal-to-noise ratio (SNR) and the geometric SNR method. As an example of the frequency-domain equalization technique, the per tone equalization technique, commonly used in the conventional DMT systems, is discussed. This technique equalizes each tone separately such that a higher channel capacity is reached. These equalization techniques are subsequently compared in terms of their computational complexity and capability for bit-rate maximization through the channel. This is followed by a discussion of other multitone modulation/demodulation systems, such as discrete wavelet multitone and filtered multitone. The latter systems may be designed to give rise to better subchannel isolation and robustness in noisy environments.” From: https://ieeexplore.ieee.org/document/986875
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How do you go about reducing a cell range?  I am asking this question based upon Transmit Power Control
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Why 2.4 GHz and 5 Ghz don’t interface with each other?
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I heard the term frequency channel, is there such a thing as amplitude channel?
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Microsoft Azure 2017
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In the sentence, Code Division Multiple Access (CDMA) assigns a unique code to each call, does the code means something like an IP address?
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If Time Division Multiple Access (TDMA)  divides channels into time slot, what are channels?
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Frequency Division Multiple Access divides the frequency range into bands.

I know there are unlicensed bands, such as 2.4 GHz and 5 GHz.
 So what does frequency range mean?
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802.11i:

Improvements to security at the link layer.

Does this mean the link layer of the TCP/IP model?
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What is a “directly attached access points,” as in 802.11F?
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What other waves besides radio waves are used by wireless networks?
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Wireless Networking

17K

Solutions

19K

Contributors

Wireless networking is anything related to the transfer of data between two (or more) devices without the use of a physical connection, ranging from getting advice on a new Bluetooth headset to configuring sophisticated enterprise level networks.