Wireless Networking





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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Looking at any WiFi controller Aruba Cisco etc

Requirement is for guest WiFi users to be set to a password that doesn’t change

Are there guest access ways of doing this on controllers so that users have no access to the main network

I was looking at static IPs or even a separate scope with 10 addresses (required for 5-10 VIPs) what’s best way to do this? (In general with modern WiFi controllers examples and 2012 Domain controller setup)
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wifi is dropping on some of my clients, i have a Cisco 2504 COntroller and 1852 AP's

looking through the Syslogs this is the erros showing up
please help

*Dot1x_NW_MsgTask_2: 1x_ptsm.c:544 Max EAPOL-key M1 retransmissions exceeded for client e8:p1:e7:o0:7a:d6

*apfReceiveTask: apf_ms.c:7398 Could not find the mobile e8:p1:e7:o0:7a:d6 in internal database

-cap-controller    Error    NY-WC-2504-01: *Dot1x_NW_MsgTask_6: 1x_ptsm.c:730 Client e8:p1:e7:o0:7a:d6 may be using an incorrect PSK

The syslogs show:
*Dot1x_NW_MsgTask_2: 1x_ptsm.c:544 Max EAPOL-key M1 retransmissions exceeded for client e8:c1:d7:00:7a:2a (Ipad 1)
    NY-WC-2504-01: *Dot1x_NW_MsgTask_2: 1x_ptsm.c:730 Client e8:c1:d7:00:7a:2a may be using an incorrect PSK
    1/8/2019 2:17:45 PM    cisco-capwap-controller    Warning    NY-WC-2504-01: *Dot1x_NW_MsgTask_2: 1x_ptsm.c:544 Max EAPOL-key M1 retransmissions exceeded for client e8:c1:d7:00:7a:2a (ipad 1)
    1/8/2019 2:17:41 PM    cisco-capwap-controller    Warning    NY-WC-2504-01: *Dot1x_NW_MsgTask_2: 1x_ptsm.c:544 Max EAPOL-key M1 retransmissions exceeded for client e8:c1:d7:00:7a:2a (ipad 2)
    1/8/2019 2:17:34 PM    cisco-capwap-controller    Warning   NY-WC-2504-01: *Dot1x_NW_MsgTask_6: 1x_ptsm.c:544 Max EAPOL-key M1 retransmissions exceeded for client e8:c1:d7:00:7a:b6 (ipad 3)
    1/8/2019 2:17:31 PM    cisco-capwap-controller    Warning  NY-WC-2504-01: *Dot1x_NW_MsgTask_2: 1x_ptsm.c:544 Max EAPOL-key M1 retransmissions exceeded for …
Ubuntu Linux 16.04
Android Phone

We are on the floor of a convention and trying to connect our linux machine to our Android hot spot. There are too many WiFi hotspots and we cannot find the one from our phone.

On our Linux machine, how to find the hotspot that is being generated by our Android phone? Is there a way to search for the specific hotspot name? Is there a way to turn off the other 100 or more hotspots that are filling up the queue?
I have a user that athome and on a farm, uses Comcast as the Wifi company. She bought and extender because she was having issues with NetFlix. The extender was a NetGear. This helped some but did not make life fun. What would be the best route to getting her Wi-Fi so she would be able to see NetFlix the way it should be seen?
I am having difficulty maintaining a consistent internet connection with too many black spots around the property.

The current setup is as follows:

1st floor: WIFI Router (DSL) with wired connected to WIFI extender (plugged into power outlet) which sends signal to second floor. One other WIFI extender on 1st floor to improve wifi coverage. All are bare bones TP-Link products

2nd floor: Wifi Extender to receive signal from first floor and two other wifi extenders.

Each floor is roughly 100sq.m or 1000 sq ft. Each floor is a separate unit. The walls within each unit and the exterior walls are very, very thick concrete.

On the second floor especially I only get a clear signal from the WIFI extender near the main entrance whose purpose is to get the internet connection from the first floor. This signal serves only one room, the main entrance. The rest of the unit has so many black spots and connection stoppages even within a few feet of the extenders.

Outside I don't even have a signal within one foot of the entrances. This occurs on the first floor as well.

Question: I am looking for products/solutions that cost under 400$ total that will give me a clear signal in each room on both floors and give me an outside signal within say 10 meters of the entrances on each floor., despite the buildings heavy concrete walls and remote location. My internet connection is roughly 15 mpbs down and 1 up.

For an additional cost I wanted something that I could use …
What is the difference between the Cisco Aironet AIR-CAP3602I-E-K9 Access Point   and the CAP3602I-A-K9 Access point.

The difference being the E vs the A.

Is it possible to convert a A to a E? or vice versa. Thank you.
I have 2 300 foot runs.  Cat 5E.  The switch attached to is a cisco POE fully managed Switch.  The run in question currently supports 2 time clocks.  I need to lay out solid, meshed WiFi.  The units supplied by the coporate home are Ubiquiti AC Pros.  They each require POE.  To that end I have a inexpensive 8 port POE 802.3AF managed switch due in on Wednesday.  The idea is simple.  Take the run and place into switch thereby joining the Layer 2 network.  Then we will have perfectly recondition the electronic signal as is consistent with Switching technology.  The Switch being a Managed POE will also supply my further run out Access points with POE.

This is completely compliant with The OSI model in theory.  The cheap switches, well, ive used them many times at other locations in other applications.  Sure, the best thing would have been a fiber run to my distribution cabinet,, but no such luck.
Has anyone applied a POE switch at or near the 100 meter limit.  For all practical purposes this will work.  Further, in teory a layer 2network can be grown to any conceivable size.  Limited only by the switching fabric and IP address.

Please advise.
When this client connects to our Public guest WiFi her browser doesn't load. it comes up blank and she's not able to connect. It used to work. I had to delete the the public wifi during a large conference and then re-created after the conference. Ever since i recreated it she's not able to connect. I've not had another problems with any other devices. Her Kindle Fire version is 6.3.4_user_4120720. I don't have access to her device but if you could give me a couple ideas that would be great.

Is there a way to "Forget" the SSID or clear DNS on the Kindle Fire? any ideas would be most appreciated

I've opened a ticket with Ruckus support but that's not going to help me tomorrow (Sunday) when she'll try to connect again.
Hi guys,

When I am at my parents house,, streaming stuff is so slow. When running a speedtest it shows speeds of 25MBs download, 5mbs upload. It is 'fibre' internet that they have.

However, I am wondering how one can determine if the slowness is our side or the sender who we are viewing from. How does one determine whether it is our side? What tools can I run? Wireshark?

Thanks for helping
Hi, I have a friend who is traveling in Europe soon.  They'll be on public WiFi all the time, wherever they go, and they're concerned about doing things like online banking.

They asked me if they got a good VPN (I use StrongVPN), if that would be secure, because the connection between them and the outside world would be encrypted.

I didn't know the answer, so I am coming to the experts. What's the safest, most secure way for them to connect to online banking while on a public WiFi?

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On a Cisco 5520 wireless controller, what are the steps to disable the 2.4GHz network
Can I use CREATIVE BLUETOOTH speakers to help adit Mac.Audacity audio files?

My MacBook has little speakers and I need a louder set. Can I use CREATIVE BLUETOOTH speakers as output for my Audacity?

I connected the speakers to my Mac via BT but when I open Audacity, I do not see CREATIVE as an option on the speaker drop down.

Is this a connect that should work?

Hello experts,

I am at a site and they use cisco WLC 5500 wireless controller and they have defined all the SSIDs , one of the SSID is the guest and I am checking the interface defined and it is clearly showing that it is on VLAN 50 the IP of the interface is given, plus the gateway which is same as the primary DHCP

I checked the core switch and there is VLAN 50 but just the vlan is defined but there is no SVI for vlan 50 and there are no DHCP services on the core, I checked the Microsoft servers and I do not see the scope for vlan 50. I am wondering how the clients are getting a dhcp IP when they access the guest SSID. I can not find this gateway or primary DHCP

This client also uses cisco ISE, I have access to the cisco ISE but it uses different IP and I do have access to it but I am not getting clarity on this network, Any suggestions on how to find this dhcp server or service will be great help.
I do have internet connection from ISP, all my phone, computers etc. can get internet access from the wireless router provided by ISP, however, I am thinking about building a standalone, segregated wireless network for my security camera system by adding another wireless router to do this job, under this setup,  a POE switch will be plugged into this wireless router, and all the cameras will be connected to this switch.  After having tried the old apple airport extreme wireless router without the internet, it does not function at all without the internet connection, one of the LED keep flashing orange color instead of green color.  My question is: are routers like this that have to work with internet connection? if not, any router model recommended to fit my purpose(work without internet connection)?
I have a Dell Windows 10, relatively new laptop.  I am having wifi issues.  When wired to my home internet connection, I get speeds of 250-300 Mbps.  Once i switch to Wifi, it connects but I am getting super slow speed of less than 5 Mbps.  Other devices on my home network are getting good speeds - close to 200 Mbps.  is there anything in Windows 10 that would limit this?  If not, maybe the wireless adapter is bad?

Would appreciate any ideas/tips to try.  Thanks.

Dan M.
Routing problem.... I do not think so.  What do you think?

I am trying to setup a new Wireless setup.  We are currently using HP MSM760; but, it is E.O.L. and we purchased an Aruba Wireless system to replace it.  I have never worked with either Wireless Systems and I am charged with:

1.  Learning how the HP System currently works.

2.  Duplicating the setup in the Aruba system.

I have been reading Aruba user guides  and setup you tube videos and I have everything connected and I have begun testing the SSID's.  The problem is that when I get any laptops or wireless devices connected they get authenticated and the device receives and IP address from the correct VLAN.  The Device shows up in the DHCP server and the IP address is associated with the Computer name; but, those wireless devices cannot ping anything on the network nor can anything on the network ping them.

I think that there must be a configuration setting that needs to be enabled.  Something that is unique to Aruba and outside the instructions I was given.  Aruba Support is stating that this is a network routing issue and they cannot help unless the main router can communicate with the wireless device.  I personally think that the reason there is a routing issue is because the Wireless Client is getting Authenticated into the Aruba system and a configuration setting is required to allow routing.

The thing is that the Aruba controllers can ping  devices that are on all of the required VLans.  The…
How to force internet traffic from 2 x specific 'Guest' VLans on an Aruba Wireless Controller to forward to the DMZ VLan?

I thought about setting up a static route /  to point to the DMZ Gateway IP address.

But I do not want the other VLans (company / employee related) to have their internet traffic through the DMZ.  Is that possible?  Or must all Internet traffic be routed to the DMZ and then routed back?  I am sure there is a way to do this.  In the older wireless system the Wireless controller's default route was set to the DMZ gateway.  That is telling me that all unknown traffic is forwarded to the DMZ(internet).

On the older wireless controller there are static routes set for company specific network traffic to use the default Vlan Default Gateway (Internal IP address).  The only problem that I see for setting up / to the DMZ is that I will need to setup a static route on the DMZ to send traffic right back to the controller(s)?  Unless I can only forward traffic from specific Vlans to the DMZ?  Is that possible?

How can I force Internet-only traffic for 2 specific IP based VLans to be routed to the DMZ VLan and to let eveythign else use the normal company routing?  

We are using Aruba 7030 controllers and we can assign an extra/available port to connect directly to the DMZ VLan if necessary.
I need advise on best high speed WiFi router for home over 8,000 SF.
Have a client using a Roku Express 3900X, that is broadcasting a hidden SSID.  I am unaware of any reason for this.  Yes, I am sure it is the Roku device.  Can it be turned off?
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One of our users keeps getting disconnected from our Cisco AP/WLC and the controller is seeing an EAPOL frame error.
They've worked fine to recently and they've rebooted. Anyone have a guess what would cause that error?
Hi All,

I’ve got a situation where our network which is a flat one vlan network with 2 Cisco switches (one PoE dedicates to phones, other dedicated to data) and we’ve found after looking over the data switch logs that we’re getting MAC flaps.

After more in depth digging it seems it’s the Unify / Ubiquity access points that are causing the flapping. (Probably when a MAC roams between AP’s)

However, we’re experiencing network problems probably when this happens it causes a “freeze” on the whole vlan, not enough for the PC’s to notice but the phone calls drop.

My question is, would the above be feasible ? And would a quick fix be to turn off spanning tree on the AP ports?

My long term fix would be to put the AP’s in its own VLAN which would stop things like this effecting the native vlan.

A client would like to have their Eero WiFi turn off automatically while they sleep, so that they will have 6 or 7 hours with less WiFi radiation.  The mail Eero gateway is far from the bedrooms, and the remote 'Beacons' get the signals to the bedrooms.

Is this possible with Eero, or any other mesh WiFi?

IF that's hard to do, I also thought of having the remote 'Beacons' connected through smart plugs, and have the beacons turned off and on automatically by the smart plugs.  I guess that the smart plugs have a weaker WiFi signal - otherwise they could be access points.

I have warned the clients to get the cell phones out of the bedrooms, since their signals are strong enough to reach the cell phone towers.

Who knows any way how can we deny domain computers to connect mobile hotspot?  From group policy we can add certain SSID for wireless connection.Then other wi-fi connections will reject. but it is not soluton for me, I want to prohibit connections only to  mobile hotspot.
I have a Meraki MR33 AP on a network with a windows 2012 R2 server as a AD, DHCP, and File server and a Meraki MX64 firewall. my issue is with the MR33 Wi-Fi. with the main SSID set to allow connected devices receive IPs from the DHCP and on bridge mode so they can access the drives. problem is I cant see the server or access the pre-mapped drives. I can't Ping the server either. any ideas?
Hello all,
I have a weird issue and am not sure where to go on it.
A client of mine has two Lenovo Yoga 260 laptops side by side.  They are identical in almost every way (they both are Windows 7 Pro 64 bit, 4 gig RAM, and have the same exact software on them.)  They both get onto the wireless.  One of them is rock solid and has no issues.
The other one in question will get onto the wireless and stay on sometimes for 5 minutes before it disconnects.  Sometimes it will be two days and then it disconnects.  Completely random.  When it disconnects it does a full disconnect then reconnects but it does so only partially (with a 169.x.x.x address and not an internal DHCP Lan address).  The only way to resolve is a cold boot.
Here are the steps that I have done:
1)    Updated the Cisco WAPs to the latest firmware.
2)    Updated the laptop with the latest Lenovo drivers and Windows updates.
3)    Moved one of the Cisco WAPs to three feet away from the problem laptop.
4)    Restarted the DHCP server several times
5)    Disabled the internal wifi card on the problem laptop.  Installed a USB wireless card
6)    Ran a chkdsk /f on the hard drive of the problem laptop.  No issues were found.

After each one of these steps this issue happens.  It is completely random and it is not when the user allows the laptop to go to sleep.  The user could be in the middle of inputting patient data in the EMR and boom there is a disconnection.

I have no earthly idea what to do next or …

Wireless Networking





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.