Multiple devices can't connect to wireless network

I currently have a WRT54G v5 router hooked up to a comcast cable modem and a dell desktop computer. I'm able to get onto the internet fine through the wired desktop and through one wireless device. The problem happens when I try to use another laptop on the same wireless network. Everyone get's kicked off. Can anyone help me with this or help me find a solution on the website? I'm about to pull my hair out trying to figure it out!
Thanks in advance!!

ON both your Win 7 computers, disable IPv6 under LAN properties for both the wired and wireless adapters. Reboot computers and connect again and test.

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Can I connect to wireless networks far away?

How do I connect to wireless networks further away?
Is there a way I can improve my laptops wireless range so I can connect to wireless networks further away?

Hi!
You can only connect to wireless networks that the notebook recognizes. If the notebook recognizes a wireless network, you can connect to them. If it doesnt recognize (because it is further away) you can not connect.
Furthermore you can not improve the wireless range from the laptop. You can do this on a WLAN router, not on the notebook.
Bye

Can't connect to wireless network with Apple Computers (WRT54G)

Hi.
I have had a password protected router (WRT54G) for over two years that any pc will connect to if I give them the password. However, my roommate has an apple laptop and he can't connect, no matter how many times we try. I just got an ipod touch, and it can't connect to the network either. We are inputting our password correctly - why can't apple computers connect to my wireless network??
Again, my router is a WRT54G.
Thanks !!!
Message Edited by Debo24 on 05-24-2009 06:41 PM

Make sure you enter the correct password...To check your Wireless Settings follow this link
If your Wireless Security is WEP then use WEP Key1 and not the Passphrase, make sure to enter a dollar sign on your Apple Computer when you attempt to connect...If your Wireless Security is WPA/WPA2 then use the WPA Shared key and no dollar sign is required...

Can not connect to wireless networks with ipad 2

My ipad used to connect to the wireless net at home and in public areas.
Now all by the sudden it can't "see" the network.
Message: " could not connect to wireless network"
I have tried "everything" also on different networks,
except resetting the modem.
My iPhone works, as do all my other computers.
Modem is Zyxel P2812

Look at iOS Troubleshooting Wi-Fi networks and connections http://support.apple.com/kb/TS1398
iPad: Issues connecting to Wi-Fi networks http://support.apple.com/kb/ts3304
iOS: Recommended settings for Wi-Fi routers and access points http://support.apple.com/kb/HT4199
Additional things to try.
Try this first. Turn Off your iPad. Then turn Off (disconnect power cord) the wireless router & then back On. Now boot your iPad. Hopefully it will see the WiFi.
Go to Settings>Wi-Fi and turn Off. Then while at Settings>Wi-Fi, turn back On and chose a Network.
Change the channel on your wireless router. Instructions at http://macintoshhowto.com/advanced/how-to-get-a-good-range-on-your-wireless-netw ork.html
Another thing to try - Go into your router security settings and change from WEP to WPA with AES.
How to Quickly Fix iPad 3 Wi-Fi Reception Problems
http://osxdaily.com/2012/03/21/fix-new-ipad-3-wi-fi-reception-problems/
If none of the above suggestions work, look at this link.
iPad Wi-Fi Problems: Comprehensive List of Fixes
http://appletoolbox.com/2010/04/ipad-wi-fi-problems-comprehensive-list-of-fixes/
Fix iPad Wifi Connection and Signal Issues http://www.youtube.com/watch?v=uwWtIG5jUxE
Unable to Connect After iOS Update - saw this solution on another post.
https://discussions.apple.com/thread/4010130?tstart=60
Note - When troubleshooting wifi connection problems, don't hold your iPad by hand. There have been a few reports that holding the iPad by hand, seems to attenuate the wifi signal.
~~~~~~~~~~~~~~~
If any of the above solutions work, please post back what solved your problem. It will help others with the same problem.
 Cheers, Tom

Can't connect to wireless network on bootup like before

Hello all. Well, I seem to have run into some difficulties here while configuring my system. The thing is I cannot connect to my wireless network on bootup anymore. I stayed about 4 months without using Arch Linux, then I decided to reinstall it from the ground up on the SAME machine, which has suffered NO changes; it is the exact same computer. The only change since then is that I changed my WEP encryption key on my router. I had a functional rc.conf file which I keep just for taking a look at while I'm configuring the system. The Networking section follows:
# /etc/rc.conf (NETWORKING Section)
HOSTNAME="ArchPC"
wlan0="dhcp"
wlan_wlan0="wlan0 essid MySpot key 0123456789ABCDEFABCDEF1234"
interfaces=(wlan0)
gateway="default gw 192.168.0.1"
ROUTES=(!gateway)
The only thing I changed from my previous rc.conf was my WEP hex key, which I have already triple-checked. I used the same hostname (which is also correctly configured in /etc/hosts) and the essid is the same. In 2 years of Arch I used this configuration file and it worked flawlessly, but now it simply does not work anymore for boot-up connection. I simply get a FAIL after about 30 sec in '::Starting Network' on bootup. Then, by issuing 'iwconfig', I can see that my interface (wlan0) is up and the ESSID is set to "MySpot", but the access point is not associated. I do not know what is going on, as it never happened before. However, it works just fine if I do the step-by-step manual configuration from command line after my system is up and I can get internet access in such a way without any problems. Never did it before (so I do not know if this was the case for my previous installations), but by running 'lspci | grep -i net' I do not see my wireless extension listed, although 'iwconfig' shows it just fine. I am trying to make it work using rc.conf just as it did before. As I mentioned, my network connection is working, but not from bootup as it did before, so I do not know what to do. Did anything on Arch radically change since then? Couldn't find anything on the wiki pages besides using another network start method. Any help is greatly appreciated...
Edit: I just found out that my wmaster0 is missing...could that have anything to do with my issue?
Last edited by gabscic (2010-04-04 06:45:23)

Just for the sake of not letting this go without any answer, I've just done a full system reinstall and now I've got back my wmaster0 (the driver module for my wireless network card is rtl8187). Searching the internet, it seems that wmaster0 is an internal master device that is to be used by the module, and not the user. The lack of wmaster0 may indicate that something is amiss on the driver installed on your system. Now that I've got it back, my rc.conf file (described on previous post) works like a charm. However, I remember I did have wmaster0 on my previous Arch installation and it just disappeared all of a sudden. So far the only thing I've done different is that I have not yet upgraded my new installation, so my guesses are that something on the upgrade procedure is breaking the driver in some way. Maybe all those package renames and such? I'll upgrade my system later (don't have the time now) and I'll get back here with any new findings. Regards...
Last edited by gabscic (2010-04-06 20:53:14)

[S0LVED] Can't connect to wireless network...

I'm unable to connect to my wireless network. I'm on a Thinkpad T41p and I installed the ipw2100 firmware for my chipset. The wifi indicator is blinking, assumingly indicating activity.
When I try to use wifi-menu to connect to my network, it gives me a "failed to connect" error when I try to connect...But with netctl-auto enabled, it just tells me that my interface is controlled by netctl-auto and does nothing. When I try to scan with "iw dev wlp2s2 scan | grep SSID", it shows...
command failed: Operation not suppored (-95)
When I run wpa_cli, I get the following messages over and over again...
<3>CTRL-EVENT-SCAN-RESULTS
<3>Trying to associate with e0:91:f5:dc:14:24 (SSID='MYSSIDE' freq=2452 MHz)
<3>Association request to the driver failed
<3>CTRL-EVENT-SCAN-RESULTS
<3> Authentication with e0:91:f5:dc:14:24 timed out.
<3>CTRL-EVENT-DISCONNECTED bssid=e0:91:f5:dc:14:24 reason=3 locally_generated=1
I tried running netctl-auto switch-to on the profile, and all it showed was "WPA association/authentication failed for interface 'wlp2s2'".
As far as I can tell, nothing else is trying to manage my network, and I can't find anything that indicates that anything's wrong in dmesg.
lspci -nnvk | grep -A10 -i net...
02:01.0 Ethernet controller [0200]: Intel Corporation 82540EP Gigabit Ethernet Controller (Mobile) [8086:101e] (rev 03)
Subsystem: IBM Thinkpad [1014:0549]
Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 11
Memory at c0220000 (32-bit, non-prefetchable) [size=128K]
Memory at c0200000 (32-bit, non-prefetchable) [size=64K]
I/O ports at 8000 [size=64]
[virtual] Expansion ROM at c0240000 [disabled] [size=64K]
Capabilities: [dc] Power Management version 2
Capabilities: [f0] MSI: Enable- Count=1/1 Maskable- 64bit+
Kernel driver in use: e1000
Kernel modules: e1000
02:02.0 Network controller [0280]: Intel Corporation PRO/Wireless LAN 2100 3B Mini PCI Adapter [8086:1043] (rev 04)
Subsystem: Intel Corporation Device [8086:2551]
Flags: bus master, medium devsel, latency 64, IRQ 11
Memory at c0214000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [dc] Power Management version 2
Kernel driver in use: ipw2100
Kernel modules: ipw2100
ip link...
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: irda0: <NOARP> mtu 2048 qdisc noop state DOWN mode DEFAULT qlen 8
link/irda 00:00:00:00 brd ff:ff:ff:ff
3: enp2s1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN mode DEFAULT qlen 1000
link/ether 00:0d:60:5f:57:cf brd ff:ff:ff:ff:ff:ff
4: wlp2s2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN mode DORMANT qlen 1000
link/ether 00:0c:f1:0c:c4:36 brd ff:ff:ff:ff:ff:ff
ip addr...
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: irda0: <NOARP> mtu 2048 qdisc noop state DOWN qlen 8
link/irda 00:00:00:00 brd ff:ff:ff:ff
3: enp2s1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000
link/ether 00:0d:60:5f:57:cf brd ff:ff:ff:ff:ff:ff
4: wlp2s2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000
link/ether 00:0c:f1:0c:c4:36 brd ff:ff:ff:ff:ff:ff
dmesg | grep firmware usually shows nothing regarding the firmware, but sometimes it'll show the following until I restart...
[ 325.258396] ipw2100: Fatal interrupt. Scheduling firmware restart.
Last edited by rzrscm (2013-10-22 11:59:06)

/dev/zero wrote:
With more information, I can now say that I can't help you with everything - but I will respond to what I can.
rzrscm wrote:
When I try to scan with "iw dev wlp2s2 scan | grep SSID", it shows...
command failed: Operation not suppored (-95)
Did you run that command with sudo? When I try running it as a normal user I also get an error but it works if I sudoise it.
rzrscm wrote:
ip link...
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: irda0: <NOARP> mtu 2048 qdisc noop state DOWN mode DEFAULT qlen 8
link/irda 00:00:00:00 brd ff:ff:ff:ff
3: enp2s1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN mode DEFAULT qlen 1000
link/ether 00:0d:60:5f:57:cf brd ff:ff:ff:ff:ff:ff
4: wlp2s2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN mode DORMANT qlen 1000
link/ether 00:0c:f1:0c:c4:36 brd ff:ff:ff:ff:ff:ff
ip addr...
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: irda0: <NOARP> mtu 2048 qdisc noop state DOWN qlen 8
link/irda 00:00:00:00 brd ff:ff:ff:ff
3: enp2s1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000
link/ether 00:0d:60:5f:57:cf brd ff:ff:ff:ff:ff:ff
4: wlp2s2: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000
link/ether 00:0c:f1:0c:c4:36 brd ff:ff:ff:ff:ff:ff
Both of those commands say that your wifi card is in a DOWN state. Try running
sudo ip link set dev wlp2s2 up
and try again to make a connection.
I've tried this a bunch of times with no results...This time after I tried it, I checked dmesg and the fatal interrupt message was there...So I'm guessing this error is in response to that command.
ipw2100: Fatal interrupt. Scheduling firmware restart.

Can't connect to wireless network from my e2000 router

My network was working fine, then my router turned off spontaneously. The power wasn't lost, everything else in the power strip was still functioning. I got it working again but now I can't connect to the wifi network on any of my devices. I've tried using a Wii, an iPhone 5 and a Mac running OSX 10.7.5
The wired connection works fine. I can see the network on my list, but when I try to access it it reads "Could not join 'network'. A connection timeout occoured."
Any ideas? Anyone else have this issue and fix it? Is it time to go out and buy a new router?

Yes, reset is fine. I do believe firmware upgrade can fix a lot of things.
I usually use 1, 3, 6, 9, 11 wireless channels for better wireless coverage.
I use inssider software to determine the best wireless channel to use.
I make sure to that cordless phones, microwave ovens and other wireless transmitters are at least 10 meters away from the router. I also updated my wireless devices as much as possible. I think that is the key to my stable network.

Airport Utility cannot see Airport Extreme Device even though connected to wireless network

I'm trying to set up a Macbook Air for my wife. I have a home network of four Airport Extremes that were configured in bridge mode with an authenticated SSID and one that is open for guests. On my PC my airport Utility sees all of the base stations and can configure them fine. On the Macbook air the utility cannot see any of the base stations no matter how many times I scan. The strange thing is that it can see both wireless networks. A fact that may be related to the problem is that the Macbook Air cannot authenticate into the secured SSID. The password is correct. Other machines (PC/Mac) all have no problem. Apple TV 2's, iPad's, and iPhone's all have no problem. I'm stumped.
Any help is appreciated! Thanks.

As usual in recent years, Apple creates and ships a problem (latest MacBook Air + Airport Extreme N + Airport Utility 6.1), and when multiple users encounter the problem, and post about it, nary an Apple supoort person to take ownership, so threads just die, like this one did. I'm having the same problem, and as a committed Apple customer, I just want to find any oither company to do business with.
(I'm sure connecting by wired Ethernet would work, but THE AIR DOESN'T HAVE AN ETHERNET JACK!!)
Love this community. Have had it with Apple.
Sincerely,
Marc

Can't connect to wireless networks without disabling firewall.

I just had the built-in battery replaced on my MBP by the genius bar. When I started the machine up I was bombarded with firewall messages asking if applications should be given access to incoming network connections. I didn't recognize a few of them and clicked "deny". Now my machine will no longer connect to a wireless network without first disabling the firewall. Then I can re-enable the firewall and it seems to work okay.
I went through the Security panel and edited the list of applications allowed to have incoming connections and enabled all the ones that were disabled hoping that would fix it. The only one that is disabled now is OSXVNC, which I don't use and don't want to be enabled.
I'm not sure why replacing the battery caused all the windows to pop up, but now I don't know how to fix this issue. Anyone have any advice? Is there a way to restore my old firewall settings?

Go to the /Macintosh HD/Library/Preferences/ folder and remove the file called "com.apple.alf.plist", then restart your system.
This file is the preferences file for the application firewall. Removing it will clear all the firewall rules and set up the firewall from scratch. Sometimes after hardware configuration changes, or even hard crashes the firewall may not work properly and removing this file to set it up from scratch should do the trick. It will still ask you to allow some services and applications after doing this, but should not ask to for every system service and feature that uses the network.

Can't connect to wireless network

I have a wireless set-up that I've been able to connect to the past, but now I can't. Number 3 port light is on, as well as wireless, internet and power. No light on above the WI-FI protected set-up button.

The port 3 light is lit up on your router so I think there must be a computer connected to the router with the Ethernet cable. Open the Internet browser on that computer and in the address bar type the number ' 192.168.1.1 '. Log in to the router setup page with the default admin password, leave the user name blank. Go to the wireless tab and check the wireless settings. Just under the wireless tab you will find the wireless security sub tab. Check the type of security and password of the wireless network.
Now try to connect to the wireless network on the laptop. Follow this link to connect to the wireless network.

Can't connect to wireless network that works fine for other machines

I received my MacBook Pro last week (2.16 GHz) and I've been very happy with it so far. However, when I brought it home, I've had nothing but issues trying to connect to my wireless network. It's a Netgear, and you can read more about it at the following link:
http://www.netgear.com/products/details/WGT624.php
It works great with my Windows XP Desktop (HP Pavilion 1250n) and PowerBook G4. It works with no password, 40-bit WEP and 128-bit WEP. But not with the MacBook Pro. However, my MacBook Pro has worked at my office and StarBucks, so it works sometimes. Is there something special I have to set on my router for it to work with the MacBook Pro?

I also had problems with wireless connectivity while trying to access a netgear WGR614 albeit a v2 base station.
The problem was that I could not see the network from my MBP. It just didn't appear. The network was open with zero security. However my dell laptop was able to connect fine.
I noticed in the MBP config that the wireless locale was set to USA. I however live in Ireland. I then changed the locale inside the netgear 'wireless settings -> region' to United States. Now everything works fine. My dell didn't seem to care either way. It just picked up the new 'USA - region' based wireless network.
The problem now is that I travel quite a lot and usually I won't have the luxury of being able to change the routers configuration.
Is this just a MBP and Netgear WGR614 issue?
If this happens in the future is there a way for me to change the AirPort wireless card locale?
MBP 15" Core 2 Duo Mac OS X (10.4.8)

Can't connect to wireless network in XP under bootcamp

Hey there,
I'm hoping that someone here can provide some help. I've got XP sp2 running 'fine' in Bootcamp - 10.6.3 iMac 27 i7. The only thing that I can't get working is the wireless connection. I can't for the life of me figure out how I am supposed to get XP to connect to my wireless network, and consequently no internet access.
From what I've read I'm supposed to go to Network Connections and choose 'New Wireless Connection' but the problem I have is that I don't see 'New Wireless Connection' there anywhere. I have installed the extra drivers from my Snow Leopard disc but this problem persists.
Have I missed something? Can anyone offer any advice on how I can get this working?
Thanks very much in advance!

Hi,
have a look here http://support.microsoft.com/?scid=kb%3Ben-us%3B870702&x=10&y=12 for possible solutions.
Might be a problems with a hidden SSID (Service Set Identifier).
Hope it helps
Stefan

Can't connect to Wireless Network. Officejet 6500a

I just bought an Officejet 6500A and can't seem to have it connect to my wireless network via Ethernet. All the cables are connected, however when I try to install using the network connection I keep gettting an error saying no networks are found.
I have tried the HP Network Diagnostic Utility and even there after it scans it says no wireless networks found. What is the deal? The printout from the printer says it is ready and wired.

Hi Romex,
The HP Officejet 6500A Plus e-All-in-One (CN557A#B1H) is the only model that offers wireless capability.
The HP Officejet 6500A e-All-in-One (CN555AB1H) only offers wired Ethernet capability.
You can always exchange the product since you didn't know it was Ethernet only.
Please click the blue Kudos star in the post that helped you.

Can not connect to wireless network any more, missing command

I can not connect to any wireless network. I have been having this problem for days. In desperation I installed 10.4 in a seperate HD. I clicked on the airport icon in the upper tool bar, selected my network name and clicked on "open internet connect" and I was connected, what?? I rebooted into 10.5 and tried the same thing again. But the panel that opens when you click on the airport icon has NO "open internet connect" command. A couple of weeks ago I reinstalled my OS. I have run diskwarrior and Techtool pro. Thinking back to the time I first installed 10.5 I don't remember ever seeing that command. Is Leopard compatible with the airport card? How do I get my "open internet connect" command back??

It sounds like a problem between hardware and software. When you select your network, does anything freeze or does nothing happen?
Nothing happens.
Try this, open your Network Preference Pane, turn off airport off and delete the Airport connection by selecting "Airport" in the left pane and click the " - " button. Click on the "+" sign and create a new Airport connection. Hit Apply if it is available. Turn AirPort on and try to select your network and login if you can. The status should show Connected and an IP address should show up after of a couple of seconds.
I get "AirPort has a self-assigned IP address and may not be able to connect to the Internet". On a couple of occasions (over the last couple days) I got you are connected to the internet on IP 172.17.90.251. However when I tried to open a web page I got the banner you are not connected to the internet. Strange, the pref panet said I was the Safari said I was not. Certainly the IP address does not show up in a few seconds. I also have ComCast cable but I need to use the MetroFi-Free wireless so my wife has the bandwidth to do her company work using VPN.

Can't connect to wireless network after Mac OS update

I just bought a mid-2007 Macbook (2x2 GHz, 2 Gb), which came with OS X 10.5.1 installed.
I connected to my wireless network (WPA2 Personal) without any problems and ran Software Update. This worked fine, including updating to 10.5.3.
But now I can no longer connect to the wireless network. It either times out when I enter the password, and/or crashes the Network Preferences.
I tried re-installing the system, but the installer said it couldn't install on this mac. That happened both with the 10.4.6 discs I got with the Macbook and with the 10.5 disk that came with my iMac.
Any suggestions?

Hi tankfield
Sandra has already addressed the reason why you can't use the wrong CD-ROM to re-install OS X.
However, the reason you had problems in the first place is that the 10.5.3 update contains some unacknowledged (by Apple) issues which cause flaky wireless connection. The same problem also appears on the latest update of Tiger. Apparently, not everyone is affected, but if you are then it's a real issue.
There appears to be no single solution, just several suggestions. Off the top of my head, these are:
- In your wireless router, switch off Mixed mode and only use G or N
- Change the wireless channel so it doesn't class with the neighbours router
- Don't use WEP encryption, only WPA or WPA2 (good advice anyway)
- Put AirPort first in Network Preferences, and your home network first in Preferred Networks
- Create a dummy location which is a clone of Automatic
.... and many more - none of which worked for me.
Finally, today I came upon this one which (so far) seems to be working.
- Start up Utilities/Terminal and type this command EXACTLY followed by return:
sudo sysctl -w net.inet.tcp.delayed_ack=0
(It will ask for your password)
In the unlikely event of this working for you, you will need to re-apply each time you reboot.
Good luck
Bob

Multiple devices can't connect to wireless network

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