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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We are using Aruba Airwave with a Cisco WLC/AP infrastructure. One thing I'm noticing is that if I go into AP/Monitor/(select AP) - that I can see a client count next to radio 802.11an or if I click on the clients tab it will show me a list of the clients. Yet the number of client will not graph. See the attached anonymized screen grab. Any thoughts on why  it wouldn't graph?
Aruba-Airwave.jpg
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Python 3 Fundamentals
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Python 3 Fundamentals

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I have just started setting up my first Raspberry Pi (3).  It was easy to set up initially, but after setting up remote access with VNC, I disconnected the HDMI monitor (actually my TV).  Now when I remote into my home laptop using teamviewer and then remote from there into my pi - this also happens if I just remote directly from my home laptop to the pi - (Still having trouble remoting from anywhere but on the same wifi network) the display is wrong.  Everything is fuzzy, but the worst part is that I not only cannot see the entire screen at once but in new windows I can't see the top of them, so many times I have to guess what they say.  Is there some setting I need to change?

VNC information window occludedRemote into Home machine via teamviewer which then remotes into Pi
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We have 4 new Dell G7 15 7588 laptops that were upgrade from Windows 10 Home to Pro that are connected to the companies domain and connected to the wlan. The users are experiencing issues logging into the domain, where approximately 9 out of 10 times state that the password is incorrect. We have verified that the password is correct when being entered and have removed the laptops from the domain and rejoined them but the issue persists.

The laptops do not have issues logging in when hard wired into the network and other laptops connected to the wireless network are not experiencing issues. Also, Active Directory is not referencing any failed login attempts for the users trying to login to the laptops on the wireless network.

Any help would be greatly appreciated
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The user is having trouble connecting their Blackberry Android to an Apple WiFi network.
They have a Blackberry Priv.  
Their home network uses Apple Airport Express
The phone indicates that it is connected to the D55 Wi-Fi network, but they can't browse

I made sure that all Airports had the latest firmware, and restarted each Airport.
I suggested that they connect to the 5G network rather than the 2G, just in case there was too much interference.

Is there anything that should be done on the Android?

Thanks.
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I would like to be able to turn off the internet connections to wired computers. I was thinking of adding a managed switch next to my isps router and then using that to turn the ports on or off.

I am not sure what to buy tplink have l2 type with poe on 8 ports so might be good in the future. They have l2+ 16 port no poe managed switches at a reasonable price too. I would also like to give my computer full bandwith when I teach online, at present everyone affects it I think when I am in classes. Will a managed switch get me what I desire?

my choices seem to be TL-SG1016PE or
TP-Link Switch T2600G-18TS(TL-SG3216) 16x1000/2xSFP L2 Managed

I also would like a better wifi access point I think my tplink wa901 is struggling.

advice would be welcome.
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I have over 200 wireless machines that are currently wpa2 and TKIP.  My old Cisco controller didn't allow wpa2 and AES so we used TKIP.  My new controller a Cisco 5520 doesn't not allow wpa2 and TKIP. I'm stuck in catch 22.  Is there any way to change TKIP on the machines remotely, my users have no rights on the machines and I'd have to take off all the autologin settings and one by one change the encryption.  I don't want to have to create a group policy.  I'd rather use a script if possible
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I am unable to connect to the wireless network getting error the connection attempt cannot be completed,followed Microsoft  help site https://social.technet.microsoft.com/Forums/en-US/52621e0d-729c-4c4b-be93-334d2fa014df/windows7-wireless-connection-the-connection-attempt-could-not-be-completed?forum=w7itpronetworking

Windows 7 Laptop



but no help ,please help me on this
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I have an unlabeled Cisco Access Point blinking green and red. Alas it's also unlabeled and
it's at a remote site. I don't see any ports flapping on the switches and if I show cdp nei
on the switches the resulting APs are matching what I'm seeing in the Wirelss LAN controller.

My understanding of red/green flashing is that it means the AP is trying to register to a WLC
unsuccessfully. Where would I see logging evidence of an AP unsuccessfully trying to register?
Any other thoughts on how I might be able to get more info on this flashing AP? AIR-CAP35
(Aeronet 3500 series AP)

Users in the vicinity of the flashing AP have been reporting bad performance. This could
be a red herring or perhaps related. Thank you.
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getting errors from my Cisco 2504 Wireless Lan controller syslog

MYWLC: *Dot1x_NW_MsgTask_2: 1x_ptsm.c:730 Client MAC Address may be using an incorrect PSK

i have been noticing some dropped connections lately so i decided to setup syslog and seeing hundreds of these errors
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How to setup a new RADIUS Server for Wireless Authentication?

I have never setup a RAIDUS server before.  In the past, for wireless or Citrix or any form of authentication we just had to configure:

- LDAP Server IP address (Active Directory Server IP address).
- User account with administrator access that could authenticate to the AD server.
- Worked with a vendor (like Citrix) that had accomplished this before.

Now, I am working in a new environment where my project is to migrate to the new Aruba Wireless System from an E.O.L. wireless system.   We have an older HP MSM700 series Wireless system used in production and the Aruba is in my test lab.  

We require a RADIUS Server for employee authentication to our Corporate Wireless network.  I have found a few web sites; but, I want to know how I can verify if the new RADIUS server (Network Policy Server) has all of the requirements?

The production Wireless Controller (older) is setup to use EAP Authentication and it is configured to use a local certificate that was provided to us by DigiCert (THAWTE - CA).  That certificate is labelled to be used to authenticate to the peer.  We attempted to use the currenlty used RADIUS server; but, after the new Aruba Clients were added the RADOUS server  stopped working; hence, it was decided to create  anew RADOUS server for the new Wireless system and that should not affect the users in the production environment.

The new RADIUS server is setup as follows:

1.  Network…
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Hi Networking Experts

I have a cunnundrum with VLAN configuration with products from different vendors.

Here is the setup.

DrayTek Vigor 2862 router.
Netgear PoE switch capable of VLANs.
Ubiquity UniFi Pro ac wireless access point.
Windows Server 2012 R2 that acts as DHCP server and also AD server for PCs.

Here is the requirement.

VLAN1 to be data VLAN for PCs.
VLAN7 to be guest WiFi networks. The AP has the capability of multiple SSIDs and putting a particular SSID in a specific VLAN.

I also need to put the VoIP phones in a diff VLAN but guest WiFi is more urgent.

DrayTek router is configured with VLANs and so is the netgear switch. DrayTek acts as DHCP for guest WiFi.

I just don’t know how to do the tagging configuration for ports on the switch where the DrayTek Router, the AP and the Windows server gets plugged in. I know that the ports to which DHCP server gets plugged into need different tag configuration than other ports.

DrayTek router is also special case since it needs to carry both VLANs and it also acts as DHCP server for guest WiFi.

Currently, the guest WiFi clients don’t get IP addresses at all.
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I have two networks in one closet for a small shared office. there are two internet connections going to WiFi. There is one copier that the two offices want to share. I need to know the best way for the two networks to share the printer but keep the networks separate. Could I connect a L2 router to the two current wifi routers and direct traffic that way?
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Can Cisco WiFi prioritize Skype for Business online real time ports? These would be UDP 50,000-59,999 and UDP 3478, 3479, 3480, 3481.
How would the access point be able to classify and prioritize that traffic relative to the other traffic received on the radio?
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How can I find the up address of the DSL modem behind a router?  
Attaching the DSL modem directly to a computer did not help:
The ipconfig showed a 169 up address.
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We've got several 1852i's with Mobility Express. We need to configure them to be on the same network but to limit which SSID's are broadcast by specific AP's. We could do this with previous "autonomous" AP's (1131, etc) but not having luck figuring out how to do it on these since they apparently need to all talk to each other.
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In a network , I have laptop and iPhone, both are trying to connect to the same network , iPhone successful get an IP and internet , laptop doesn't. (connected to AP but doesn't get an IP )

If I move with the laptop closer to a different AP it works. this network has issues with access to the network.  

I'm trying to find the root issue. is there a way that I can see to which access point the laptop in connected to and to which is the iPhone?
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I have a mac book pro that since Thursday, all of a sudden, it disconnects from the LAN.  The wifi works fine.
I replaced the network cable and the 5 port switch that it was plugged into. I have also tried a different computer with the same cable, and
it didn't disconnect with a different computer.   Since a different computer works fine with the same network cable, I'm thinking there's an issue with the MAC.

I don't use MACs much, so suggestions I can try to isolate the issue?

I'm currently using DHCP with windows servers.  I have about another 9 or 10 MACs on the network, and no one else reported any issues just yet.

Thanks. D
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We have a Group policy to deploy the wireless settings Radius connection. This has worked for years. It's mostly still working. Generally we can image a device (on a LAN cable) it joins the domain, gets this policy and it connects to the wifi automatically. Now when we image a device it joins the domain etc but it doesn't auto connect to the wireless. If I login to it with a local account I see Event ID 8002 and 12013 "Reason The authenticator is no longer present" To make this problem stranger is if I plug into the LAN and login to any domain account it must update something because I can then unplug the cable and the wifi connects successfully. We've never had to do this before today where we had to login to the device to get them to connect to the wifi.

To add complexity I think the policy settings are still correct this problem is only happening on machines we image on version 1803. We still have the 1709 image in our system and if I use that it auto connects normally. I'm at a loss.
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Hello I have a Mac running high Sierra that will not join this network. I am getting this message.  wifi has the self assigned ip address 169.254.148.201 and will not be able to connect to the internet. I have remove the wifi connection, cleared the access point keychain, removed these files from the System Configuration folder

com.apple.airport.preferences.plist

com.apple.network.identification.plist

NetworkInterfaces.plist


any suggestions?
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CompTIA Network+
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CompTIA Network+

Prepare for the CompTIA Network+ exam by learning how to troubleshoot, configure, and manage both wired and wireless networks.

Is there a good wireless solution to present to a TV?  We have been using a solution called Airtame (WiFi/HDMI adapter that plugs into the back of the TV) but it's hit or miss - sometimes it works great and other times there is significant delay and disconnects (Airtame connects to our WiFi network and laptop connects to WiFi network - Airtame app on the laptop is what allows connectivity to the Airtame device and allows the laptop to present).  Could be related to our wireless network but as far as I can tell, there are no other wireless issues...

I know we could always use an HDMI cable to present to the TV but the CEO likes to be wireless :(
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I’ve got a MacBook Pro, running High Sierra 10.13.4 & an HP OfficeJet 4650 All-in-One printer & can’t get them to work together. Using the HP software, I get no devices detected.
If I connect Mac to the printers built in WiFi network, it detects & sets up ok, but of course there goes my internet connection!
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I have google wifi with the ISP connection going straight to my google device.  I want to setup a VPN.  I only want to route specific websites traffic through the VPN.  What would I need to do to make this happen.
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Hi, i have an old nexus 6p, i want to use this only for google voice on wifi. How can i make it work?
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Hi,

i have receive an SonicWall SonicPoint N2,

i have plugged it on my poe switch, i dont have the poe injector who come with the package. i just have the access point device only

i have access to the firmware and i dont see any way to enable the 2.4 and 5 ghz radio, if im go to the status page i see the 2 radio is disabled right now.

is there a way to edit that and enable the radio and change wifi settingsscreenshot of firmware page
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One of my Techs ran a sfc /scannow  and it came back with a bunch of error which I do not have and according to her they were repaired. Once the user rebooted the network adapters disappeared. I ran a few fixes that I found via google but they did not work. The user did a refresh under the network and sharing/adapter settings and it gave this error " The network connections folder is unable to retrieve the list of adapters." Any ideas.... google is failing me today. :(

I did fail to mention they are under device manager though.......
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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.