Number of connections over WLAN bridge?

I have a network that has been working flawlessly for many years but when I recently added a printer I ran into some problems. The printer is connected to a switch that is connected to an Airport Express that is connected over WLAN to an Airport Extreme. My problem is that I can only connect four devices to the switch. If I connect a fifth device it does not get an IP adress until I disconnect one of the other four devices. Please see the attached overview of the network. Red dotted lines represent wireless connections.
Any ideas about what causes this behavior is appreciated. Thank you.

on a jetpack or mi-fi 5 GB is nothing. Streaming Netflix can use 2.3 GB an HOUR. Even streaming YouTube in HD can use 1 or 2 GB per hour. I'm not sure why people think 5 GB is a lot for a regular internet connection. it's not. That why people should be using cable or DSL or fiber for internet

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Nokia C7 - Problem with VPN Connection over WLAN

Hello,
today I installed Nokia VPN Client 44.01(5) for Belle.
Before this update I used the following configuration: I set two SIP-profiles up and for each profile a own VPN-connection. One for connecting over radio and one for connecting over WLAN or hotspots.
So over all I had three kinds of connections or connection groups to choose: "Internet" with the radio and home wlan connections, "Intranet" for the VPN-connection over radio and "Intranet over WLAN" for VPN-connections over other WLANs.
The advantage of this configuration was that I could use the SIP-profile depending on my location and the phone had not to use the "standard" VPN-connection ("Intranet") over radio.
Now after the update I have the problem that I can't connect to my VPN over WLAN at all. Not with the SIP profile and not manually over the internet browser. There is always the notification "Connection Problem".
I tried also to put the "VPN over WLAN access point" from the "Intranet over WLAN"-group to the "Intranet"-group and gave it the first priority, but that doesn't helped too.
Does someone of you had or have the same kind of problem or otherwise has any clue about that?
Any help is very much appreciated!
Thank you in advance! I hope that I described my problem clearly.
Greetings
unsys

testing with the faceplate removed and into the master socket witha brand new filters result's below . I tried the quiet line test and it seems silent so no issues there. Can anyone see an issue, I've posted the noise results etc as well with the faceplate removed. (using a butter knife cause i'm just out of bed and tools are in the garage!)
0.7 Mbps
0 Mbps
1 Mbps Max Achievable Speed
Download speedachieved during the test was - 0.7 Mbps For your connection, the acceptable range of speeds is 0.2 Mbps-1 Mbps. Additional Information: Your DSL Connection Rate :1.06 Mbps(DOWN-STREAM), 0.45 Mbps(UP-STREAM) IP Profile for your line is - 0.75 Mbps
System Up Time 00:11:28
Port
Status
TxPkts
RxPkts
Collisions
Tx B/s
Rx B/s
Up Time
WAN
PPPoA
6657
9689
0
2806
19425
00:10:58
LAN
10M/100M
28652
22350
0
22356
5418
00:11:24
WLAN
11M/54M/300M
0
0
0
0
0
00:11:11
ADSL Link
Downstream
Upstream
Connection Speed
1056 kbps
448 kbps
Line Attenuation
49.0 db
27.0 db
Noise Margin
10.6 db
20.0 db

Sharing GPRS/3G connection over WLAN

Does anybody know if it is possible to connect a computer/laptop/handset to a Nokia handset (N80, E61, etc.) using WLAN and share its 3G connection?
Nokia N80 - v4.0623.0.41

Yes... I have done it, but it seems a bit flaky. I use it via a Bluetooth 2.0 EDR connection to my Apple PowerBook - we didn't get that far with our Windows machine (a Dell Inspiron) as the Bluetooth doesn't seem to work properly on that. Use Internet Connection Sharing on Windows XP or the Sharing Preferences on Mac OS X to set it up.
The 3G connection is OK for email and web browsing, but Skype didn't like it much. Maybe Skype optimises itself for broadband if that's what you usually use?

Can connect over wlan, but not using ethernet cable between mac and extreme

Hi, I have a brand new Airport Extreme base station. Wireless LAN works well and both my wife's and my Mac can connect to the internet. When I connect the ethernet cable to my macbook, it does not connect to Extreme. Is this a feature or a required change in the setups?
br
Vesa

vesaw, Welcome to the discussion area!
On your MacBook, open System Preferences-> Network preference pane and ensure that Ethernet is enabled.

PC Suite to connect over wifi (wlan)

Is it posible to connect NOKIA N91 to PC Suite over wlan? Or, if not, is there a program which can connect to a PC directly (I mean file transfer over wlan between pc and the phone, or maybe some WINDOWS NETWORK emulator for symbian)?

I would like if all community members that want a wifi sync ove Nokia Suite provide support for this thred
http://discussions.nokia.com/t5/PC-and-Mac-Software/Why-PC-Suite-Doesn-t-support-WiFi-Connection/m-p...

Welcome to the Voice and Video over WLAN Discussion

Welcome to the Cisco Networking Professionals Connection Wireless Forum. This conversation will provide you the opportunity to discuss issues surrounding Voice and Video over WLAN. We encourage everyone to share their knowledge and start conversations on issues such as bandwidth intensive wireless applications, and any other topic concerning Voice and Video over WLAN.
Remember, just like in the workplace, be courteous to your fellow forum participants. Please refrain from using disparaging or obscene language or posting advertisements.
We encourage you to tell your fellow networking professionals about the site!
If you would like us to send them a personal invitation simply send their names and e-mail addresses along with your name to us at [email protected]

This is easily done with dial peer statements . The dial peer in your originating router must route the calls to the terminating router first. That would look like :
dial-peer voice xxxxx voip ( the xxxxx is just a tag)
destination-pattern 45... (that would route any 5-digit calls beginning with 45)
session-target ipv4:xxx.xxx.xxx.xxx (ip address of the terminating router)
If digitones are to be dialed after the connection is established, use the statement:
dtmf-relay-h.245-alphanumeric
You could also use a statement to specify the codec to be used:
codec g711ulaw
You would need multiple voip dial peers if the calls were going to different routers based on the dialed digits. If all calls are sent to the same terminating router, use all wild cards in the dest-pattern statement.
At the terminating router configure pots dial peers:
dial-peer voice xxxxx pots
dest-pattern 45...
port x/x (whichever port the call is to be terminated on)
prefix 45 (this re-inserts matched digits which are stripped off by the pots dp)
Repeat for other ports which will receive calls.
Paul

Max. Number of connections in use Nokia N93

Hi
I am trying to connect to wireless router using WEP. I have configured the access point and when I try to connect with Opera Mobile 3.6 an error occurs:
Max. Number of connections in use. Close na active connection first.
Note that my phone is not woring in dual mobe but GSM only.
When I try connecting with the Phone's browser:
WLAN: Unable to connect. WLAN Network not found
Lumia 920 OS version: 8.0.10521.155
FW revision number: 3047.0000.1326.2002

Every time you up-date the firmware, you get from your network opperator the settings for various access points (Internet, MMS, Vodafone Live, whatever....) This leads to duplicates (or even mode) access-points. Moreover, some of these access points are saved as "default" access point in various applications. This is where the mess starts.
To clean-up the mess, you first have to REMOVE all duplicate access points and keep only one access point for each purpose: Internet connection, MMS, Live (if you are are on Vodafone), etc. After this, you will probably get messages from various applications to define a new default access point. And things will be sorted our automatically.
Hope this helps, even though it might not be simple for some.
2110i, 6150, 6210, 6310i, 6670, 9300, 9300i, E90, E72, HTC Touch Pro2, Samsung Galaxy S, Samsung Galaxy S II

Voice over WLAN - Cisco 2504 and iPhones/Androids

All:
I'm working on a solution for someone who already has a Cisco WLC 2504 running 7.6.100 and 2602i APs. They are running iPhones with a SIP application instead of purchasing Cisco 7925G phones. They are having issues when roaming to different APs.
Site survey is good. I also used a laptop with Net Surveyor on it - signal looks good. SNR is good. They used to have coverage issues as well but I got that taken care of for them. Only issue now is roaming.
WLAN SSID:
-Qos: Platinum
-FT-PSK and PSK enabled
802.11a/n/ac Radio:
-Client Roaming: -67dBm for RSSI threshold and -62dBm for scanning threshold.
-Disabled 6mbps and 9mbps and 12 mbps is set to mandatory. All others are supported
802.11b/g/n Radio:
-Client Roaming: -67dBm for RSSI threshold and -62dBm for scanning threshold.
-Disabled 1mbps - 12mbps. 18mbps set to mandatory. All others are supported
Switch to which WLC is connected:
-switch ports used to connect to the controller are set to trust CoS and ports to APs and uplinks are set to trust DSCP.
With these setting changes - I believe most everything else is default. I am confused about the following:
-Best practice link - http://www.cisco.com/c/en/us/td/docs/wireless/technology/vowlan/troubleshooting/vowlan_troubleshoot/2_Gen_Troubleshooting_Guidelines.html
Says to configure voice WLAN to use 802.11a. Issues with that: Some Android's could not connect AND the big one - I am not able to set Qos to use 802.1p for the SIP WLAN. It tells me to disable 802.11a and 802.11b. If I go into each radio on 'Network' tab and disable these - NOTHING can connect to any SSID. So unless I've misunderstood something - this is a contradiction in the best-practice link I posted above.
another question: If I enable FT-PSK and PSK - for devices that support FT-PSK (which i'm under the impression is 802.11r) will these devices use that and for devices that don't they'll use 'regular' PSK? How do I know if my client is connecting using PSK or FT-PSK as both are enabled on the same WLAN.
Again - only issue is roaming. I second or two of 'choppy' voice then everything is back to normal working as expected. Any ideas as to what else I can enable to get these iPhones to roam better - if this is even possible. Can iPhones roam using a SIP app with zero voice interruption? This is the equipment that they got and can't get anything else so I got to make the best of this. Perhaps I've already done that? Any ideas/suggestions are very much appreciated.

Hi
Before any other think I would like you to upgrade your WLC image to 7.6.130.0 & FUS to 1.9.0.0. FUS upgrade will require 30-40min downtime to your wireless.
http://www.cisco.com/c/en/us/td/docs/wireless/controller/release/notes/fus_rn_OL-31390-01.html
http://www.cisco.com/c/en/us/td/docs/wireless/controller/release/notes/crn76mr03.html
It tells me to disable 802.11a and 802.11b. If I go into each radio on 'Network' tab and disable these - NOTHING can connect to any SSID. So unless I've misunderstood something - this is a contradiction in the best-practice link I posted above,
This simply says, you have to disable radio band before changing QoS profile values. Once you change those value you can re-enable the radio band. :)
If I enable FT-PSK and PSK - for devices that support FT-PSK (which i'm under the impression is 802.11r) will these devices use that and for devices that don't they'll use 'regular' PSK? How do I know if my client is connecting using PSK or FT-PSK as both are enabled on the same WLAN.
Read these 802.11r post & you will understand how 802.11r works. There are certain client devices does not like PSK & FT-PSK capability advertise on the same SSID & may have connectivity issues. But most of the clients like iPhone, iPads,etc will connect without any problems.
http://mrncciew.com/2014/09/06/cwsp-802-11r-ft-association/
http://mrncciew.com/2014/09/07/cwsp-802-11r-over-the-air-ft/
http://mrncciew.com/2014/09/08/cwsp-802-11r-over-the-ds-ft/
"show client detail <mac_address>" should indicate if client connected over FT-PSK or PSK.
HTH
Rasika
**** Pls rate all useful responses ****

N8 & Iplayer problem - connect to WLAN but I alrea...

All of a sudden I am unable to watch/download from BBC iPlayer. It tells me I have to connect to WLAN, which is fine, I always did this. But even when I am connected to WLAN I still get the same message so cannot use the iPlayer at all.
Think it may be a problem since the last upgrade.
I looked it up on the iPlayer website where it says to check the APN settings but like a large number of people I get 'sim card error' when I try to access the APN settings.
If someone can help before I completely give up on this awful phone I would be very grateful.

Check the settings under Menu/Settings/Application Settings/Videos Make sure that "Access point in use" is set to the WLAN you are connected to.

I'm getting a PDP authentication failure message and cannot connect over 3G. Help?!

A few days ago I suddenly started getting an error message when trying to connect to the internet over 3G. "Could not activate cellular data network. PDP authentication failure"
I am in Germany, on Telekom. Have called Telekom customer service and went to the Telekom retail store. Neither could figure out the problem and advised I do a factory restore on the iphone via iTunes. I did that and am still getting the error message.
The only weird thing that happened before the error started showing up is I had called Telekom the night before to add a U.S. data roaming package to my phone plan for an upcoming stateside trip. They told me to text "W2S" to 7277 in order to add the U.S. data roaming plan. I did that, and the next morning this error started popping up. Don't know if that is related or coincidence.
I am traveling to the states in a few days and would really like to get this cleared up. The only option Telekom has left for me is to mail my phone in to Apple. :-(

If I may ask, what country are you from?
To note, what you see is just not possible from a radio communication level, you're the first I've ever seen with this problem. (see photo and footnote below)
Since you said the Carrier option is available, can you go to it, turn off automatic and see what networks show? Normally it you will see At&t and T-mobile, however, if you see Sprint, you will need to go talk to Apple.
But if T-mobile does show, select it and see if your phone connects.
If not, remove the SIM card reboot the phone and try again.
I'm sorry about not being clear about the phone number, while connected to the Verizon network, is the phone number showing your T-mobile one or is it something different?
For reference,
Normally, what you will see in the status bar when on the Verizon network when not on 3G/LTE is the 1X symbol.
GPRS is a completely different communication type from 1X and Verizon doesn't support it. If you visit a Verizon store (or T-mobile) the staff will probably be surprised and confused about what your phone is showing.

Problem with reached maximum number of connections to database

Dear Experts,
Our Production system was not responding properly last week.
The below was the reply from the Basis team.
"It seems that we have again problem with reached maximum number of connections to database. We have extended this number to 100 this year and now it seems that it’s not enough again. It seems that something is running on Production, which takes over too many connections."
They have increased the number to 200 as a work around.
Do we have any means to find out, which component or application is causing the issue.
Please advise me if any better way is available to correct the issue.
Please see the below trace.
From default trace:
======
Caused by: com.sap.engine.services.dbpool.exceptions.BaseSQLException: ResourceException occurred in method ConnectionFactoryImpl.getConnection(): javax.resource.R
esourceException: (Failed in component: dbpool, BC-JAS-TRH) Cannot create connection. Possible reasons: 1)Maximum allowed connections to DB or EIS is reached. You
can apply CSN Note 719778 in order to check and resolve connection leaks. 2) Configuration to DB/EIS is wrong or DB/EIS is temporary unreachable. 3) Connections ar
e not enough for current load.
        at com.sap.engine.services.dbpool.cci.ConnectionFactoryImpl.getConnection(ConnectionFactoryImpl.java:60)
        at com.sap.security.core.persistence.datasource.imp.J2EEConnectionPool.getConnection(J2EEConnectionPool.java:205)
        ... 61 more
Caused by: javax.resource.ResourceException: (Failed in component: dbpool, BC-JAS-TRH) Cannot create connection. Possible reasons: 1)Maximum allowed connections to
DB or EIS is reached. You can apply CSN Note 719778 in order to check and resolve connection leaks. 2) Configuration to DB/EIS is wrong or DB/EIS is temporary unr
eachable. 3) Connections are not enough for current load.
        at com.sap.engine.services.connector.jca.ConnectionHashSet.match(ConnectionHashSet.java:230)
        at com.sap.engine.services.connector.jca.ConnectionManagerImpl.allocateConnection(ConnectionManagerImpl.java:343)
        at com.sap.engine.services.connector.jca.ShareableConnectionManager.allocateConnection(ShareableConnectionManager.java:54)
        at com.sap.engine.services.dbpool.cci.ConnectionFactoryImpl.getConnection(ConnectionFactoryImpl.java:52)
        ... 62 more
Caused by: com.sap.engine.services.dbpool.exceptions.BaseResourceException: SQLException is thrown by the pooled connection: com.sap.sql.log.OpenSQLException: No c
onnection to data source SAPEPPDB available. All 100 pooled connections are in use and 70 connection requests are currently waiting. The connection pool size might
need to be adjusted.
        at com.sap.engine.services.dbpool.spi.ManagedConnectionFactoryImpl.createManagedConnection(ManagedConnectionFactoryImpl.java:192)
        at com.sap.engine.services.connector.jca.ConnectionHashSet.match(ConnectionHashSet.java:221)
        ... 65 more
Caused by: com.sap.sql.log.OpenSQLException: No connection to data source SAPEPPDB available. All 100 pooled connections are in use and 70 connection requests are
currently waiting. The connection pool size might need to be adjusted.
======
Thanks and Kind Regards,
Jelbin

Stop all instances(including DB) and start again, Hope it should work.
It may happened that jar has not been synchronized with the database and may be version mismatch with the java.
719778 - Data Source fails to return connection
1650472 - Transactions are interrupted due to database connection periodically failing to establish
1138877 - How to Deploy External Drivers JDBC/JMS Adapters
Change the connection pool so that it can connect to DB as per the note 719778
Regards
Vijay Kalluri

Cant connect to WLAN?

After installing IOS 4.0.2 on my iPhone cannot connect to WLAN anymore. Mostly it dont fint any WLAN's at all. Sometimes i can find a network, but when I try to connect I cant. No matter if it is an open WLAN or encrypted.
Is this a known problem with this upgrade?

I have found the cover over the sim card slot is a little fiddly to insert into the slot. Can you connect to your network operator (gsm or 3g) or does the phone stay in offline mode. A little more info would help.

Maximum Number of Connected Wireless Users?

I was reading a wireless document that shows a design where 3 WAPs on a 802.11b/g network for 180 users.
Best practices talk about 15 to 20 users per Access Point, which is what we typically do anyway.
So, my question is can the Cisco 1230 or 1240 Access Points (as an example) support like 50 to 60 users per Access Point within range?
I understand that the WAP wireless network is a shared (like a hub) network thus bandwidth is shared among all connected wireless users.
So, understand those considerations, but I want to know if those Access Points can actually support that number of connected wireless users or if there is a maximum number of associated users?
Thank you!

The theoretical maximum is 2048. As part of 802.11, however, some number of
these 2k addresses are reserved bringing the IEEE maximum down to 2007.
Although the AP motherboard has memory capable of handling 2007 users, the
radio utilized in our 1200 Series AP has memory limitations which hold the
maximum number of client associations to 255.
The number of 255 is active associations, though the cam table can
contain 2048 entries because of the memory size, the number restricted
for actual active association is 255.This number is still far too large for sensible
networking but what is possible. Remember that WLAN is shared media, all users have to try
to get access to the media by waiting until it is free and then sending a request to
reserve the media for the duration of the frame size that they want to
send. If the air is busy then you have to wait a random time and start
again. So if you have too many users waiting they can end up waiting a
very long time - sort of traffic jam effect at a congested junction, one
more car and the traffic seems n times worse.I dont know as to how the number 255 was
arrived at but it is largely irrelevant as 255 is still too large to be practical for
active associations, we recommend 25-30 for most design work.

Will 2 routers running in server mode with no vtp domain defined conflict with each other when connecting over layer 2 sonet?

Our remote site has a 3845 router running MPLS to connect back to our other 3845 locally. The ISP has provided us a layer 2 sonet connection with no other configurations necessary with the exception of configuring the layer 2 portion on our side. Both of these 3845 routers are in "server mode" with "no vtp domain" specified. Will this cause an issue/conflict when the remote router bypasses the MPLS for the faster 100MB layer 2 connection?

Jon,
Excellent answer. Our two 3845 routers are about 400 miles away and we're trying to bring up a layer 2 100MB sonet connection over fiber connected to the GIG0/1 port on each router. I was worried that essentially having these 2 routers back to back over layer 2 may cause issues since our remote site has a higher revision number than our local site. It appears since we're configuring an ip address on each router and then adding the network to ospf this shouldn't conflict with our 2 routers. Below is how each router VTP is configured with the exception our remote site has 1 extra VLAN and a higher revision number.
VTP Version                     : 2
Configuration Revision          : 0
Maximum VLANs supported locally : 68
Number of existing VLANs        : 5
VTP Operating Mode              : Server
VTP Domain Name                 :
VTP Pruning Mode                : Disabled
VTP V2 Mode                     : Disabled
VTP Traps Generation            : Enabled
MD5 digest                      : 0xBF 0x86 0x94 0x45 0xFC 0xDF 0xB5 0x70

Hi, i bought second hand iphone 3 GS and wanted to switch it free over wlan and over itunes (windows), i tried many times but seems not to be possible.

hi, i bought second hand iphone 3 GS and wanted to switch it free over wlan and over itunes (windows), i tried many times but seems not to be possible.
Under itunes i made also the available tests, the connection always fails with the message that there is no secure connection to the apple server.....
any suggestions? Thks i advance

This Looks as if your phone has been hacked.

Number of connections over WLAN bridge?

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