Persistent connection problems

I am having persistent and infuriating problems connecting with iChat. When attempting to connect with a buddy the connection fails with the message "(my name) did not respond". If I try connecting with the apple test site the message is "insufficient bandwidth" although sometimes I have been able to connect. I have a G4 iBook connected to a cable modem through a DLink 524 wireless router.
I have tested my connection speed and the download tests at 1354 and the up load at 481. This seems more than sufficient for a video conference.
Quicktime streaming is set at 1.5 mbps
The router has the proper ports open
DHCP is disabled when trying to connect
All firewalls are down
I am running OS 10.4.8 and iChat 3.1.6
The buddy I am trying to connect with is using a .MAC account and AIM as am I. While trying to connect, we are able to use the text messaging with no problem.
What is going on? It already seems that even using iChat is a challenge but this is ridiculous. I would appreciate any help. Thanks

Hi Geoff,
This is a recent quote from a post by a user who had, not identical but maybe noteworthy for your set up, problems and found a way to get up and running again. I wonder if his fix might apply to your connection problems as well:
"I have been using a D-Link DI-614+ wireless router for several years in tandem with my iBook with no problems. When I switched to a new MacBook Intel Core 2 Duo 2 Ghz the problems started. The connection became extremely slow. I tried numerous things such as turning off DHCP, turning off WEP, changing the DTIM and Beacon Interval and all those things corrected the problem -- that is, until I put my MacBook to sleep then when wake-up time came the problem came back. I concluded that the speed up resulted from the re-setting of the router and not the changes in the setup. I returned the router back to their original settings and now every time I connect I automatically login to the router and restart it and the problem if fixed -- until the next time."
(D-link DI-624, DI-524, 54g This router was mentioned by several users as exhibiting the dropped-connection issue. This is unfortunate as the DI-624 is one of the third-party wireless routers that supports AppleTalk connectivity. The DI-524 was also mentioned by a few readers as occasionally having the problem.)
Maybe it is something worh giving a try,
JP

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Persistent connection problem [solved]

I updated my system this morning, and now my owl intranet database cannot connect. OWL connects over http and uses mysql and php; it was working fine before this morning's system update.
Now I'm getting an error:
Fatal error: Call to undefined function mysql_pconnect in [PATH]/db_mysql.inc on line 74
php.ini has persistent connections on
the mysql.so extension is uncommented
Any idea what is causing this?

I can confirm this, it started when I ran pacman -Syu this afternoon though I cannot fix it the same way that you did. I had to revert back to php-5.1.6-4 to get it to work with my database, otherwise I would get the mysql_connect() is an undefined function error (tried reinstalling the lib like you said, didnt work). I would like to have this fixed cause I've heard that php-5.1.6-4 has a security problem. If you need any more information please say so.

How to resolve this: Some Gmail features have failed to load due to an Internet connectivity problem. If this problem persists, try reloading the page, using the older version, or using basic HTML mode.

Keep getting this message while using Gmail "Some Gmail features have failed to load due to an Internet connectivity problem. If this problem persists, try reloading the page, using the older version, or using basic HTML mode. "
I have to use the older version of gmail for it to work properly.

now i cant even send emails out of gmail, except when using the older version.

The ol' "mail.app holds 3 persistent connection per account" problem.

I've seen posts from a few years ago regarding this problem. My mail host only allows a certain number of persistent connection... ok, that's my bad for cheaping out on a host, I can dig that.
But there has to be an automated way to check, and disconnect for these types of situations. It doesn't seem right to have to change isp's when mail.app could have a little checkbox that says:
"don't persist IMAP connection because of ghetto ISP".
The fraction of a second it would take to reconnect, check and retrieve headers, then disconnect is something I can live with.
Does anyone have a workaround or know of a client that allows non-persistant imap connections?
Maybe an IMAP proxy daemon?
Any help will be rewarded by receiving the praise of all the other poor sods in the same boat. Your name will be rejoiced the world over, you will be a GOD!
Thanks

If Mail complains that it timed out on port 0, that means there is something wrong with your network and/or account settings.
Go to Apple Menu > System Preferences > Network, choose Network Port Configurations from the Show popup menu, and make sure that the configuration used to connect to Internet appears at the top of the list.
Also, try using a different method to connect to Internet, if possible, or connecting the computer to Internet as directly as possible, i.e. bypassing any routers that might be present, using an ethernet cable instead of wireless, etc., and see whether that makes a difference.
As to the logs, Mail doesn’t make it easy to get them. Open /Applications/Utilities/Console and do either File > Open Console Log, or File > Open System Log, or both, so that Console displays the contents of both system.log and console.log.
Apparently, you can tell Mail to provide detailed log information as described in the following article (I haven’t tried it myself):
Enable detailed Mail.app logging options
Also, Mail comes with a Turn On Logging AppleScript that I haven’t tried either, but that was discussed in the following thread:
MAIL LOG???

Problem with persistent connections in OC4J

I am facing some problems pertaining persistent connections in OC4J. I think its not initializing the connection pool. Persistent connections are not being shown in v_$session view in sys schema when the application server starts. Whereas it shows these connection in case of Websphere application server. Please find the solution and reply back to me asap.

Hi Neetu,
This is just a suggestion that may help you.
Try running OC4J in "debug" mode. Here is some information that
explains how to do that (in case you don't already know :-)
http://kb.atlassian.com/content/atlassian/howto/orionproperties.jsp
Hope it helps.
Good Luck,
Avi.
P.S. By the way, why did you post the same question, three separate
times, in the space of six minutes?

HTTP persistent connection (keep Alive) problem

Hi,
I'm trying to deploy a RPC web service and I would like to use the HTTP 1.1 keep alive feature (which should be the default).
I generated the server side and client side code using jdev 903. The AS is OC4j 903.
The problem is that the server is sending a âConnection: close:â header in the SOAP response, despite the client sending a âConnection: keep-aliveâ header in the request. This is obviously causing the client to close the connection and open another for the next message.
The documentation implies that the server will always try to use persistent connections, even so, in the file:
<OC4J_HOME>/j2ee/home/config/http-web-site.xml
there is a config option âuse-keep-alivesâ. Setting this to true has no effect.
Iâm guessing there must be another option somewhere to turn on connection persistence.
Can anyone please help ?

Does anyone know whether Oracle Supports persistent connections ?
I tested this on JBOSS and I seems to get better performance.
cheers.

Persistent Airport connection problems

I've been having persistent airport connection problems since upgrading to Leopard. It got so bad that I finally installed an Ethernet network in my office. However, I really want to be able to use my laptop in other rooms so I want to fix this problem if possible.
Here's what happens. When I turn Airport on, and then select my network, I am prompted to enter my password (even though it's in the keychain). When I click "OK", I get a "connection timeout" error and no connection is made. This happens on both my MacBook and my Mac Pro.
I am currently using a D-Link ethernet/wireless router, but the problem also occurs with an Airport Express which I used previously and still have. I am using mixed 802.11n and 802.11g with WPA personal security and "WPA only" mode.
One note: if I disable any kind of network security, I can easily connect to the network. So it seems to have something to do with the security setting.

Can you reconfigure your router to use WPA2? Some people have found satisfaction after switching to the security model: http://discussions.apple.com/message.jspa?messageID=7336628#7336628

Persistent internet connection problems.

Every 8 months I get a spate of internet connection problems that last for a few months. (Meaning I get relief for two months at a time, and bad service for two months). When the previous bout of internet connection issues happened I was fortunate enough to get a good technician who showed me how to reset the connection at the fios box at the entrance to my home, by unplugging the backup battery, unplugging the connection box and then reconnecting the battery and plugging back in the connection box. The technician had remarked that there were problems with the main fios connection system to the townhouses, and somehow that got fixed.
This time I have not had as much luck. The technicians on duty have had me reset the cable router (which isn't the problem) and even replace the cable router (also not the problem). Fortunately I have remembered the previous technician's solution and am doing that every three days, without contacting technical support since they have proven useless at this time, only continuing to have me get new routers that do not even connect without the previous steps.
How do I get Verizion to bother to listen to me? At this time I am really wishing Cox was in my neighborhood, since I was able to go at least eight months straight without problems from them.
I am hoping that this causes someone to check on this problem. You had a good technician on technical support once, but not now.
By the way - this has been going on for over two years.

AtrixWolfe
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Anthony_VZ
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I can't cap the number of active downloads (via persistent-connection-to-server cap) AND still be able to load pages hosted on the same server, *because*...?

I'm aware that, by setting "network.http.max-persistent-connections-per-server" (in about:config) to 1, I'm effectively preventing myself from being able to download a single file from a server AND load a page hosted on the same server simultaneously.
My question is, why can't Firefox tell the difference between a file download and loading a website?
The reason I ask is that I feel I should be able to create a download queue and have my browser download one file at a time (to minimize the impact downloads have on available bandwidth and my own downstream, while allowing me to set up a long chain of sequential downloads), YET still be able to browse websites hosted on the same server.
I do not want to use an add-on or a separate download manager to solve this problem. I think that's stupid. Firefox should be able to tell the difference between a request to load an html file and a request to download any other type of file.
After all, I can already configure Firefox's file handling behavior for each type separately (I have, for example, previously set PDF files to prompt me to "Save as...", in order to prevent exploits from triggering when I click on a link, by preventing Firefox from opening them in-browser).
There is no reason I shouldn't be able to do what I have said I would like to. I should not HAVE to limit the number of max server connections in order to ACHIEVE filling a simple download queue with a 1-file-at-a-time limit.

In your Keychain under 'login' delete the VeriSign certificates and then quit and restart all browsers/itunes/app store.
http://apple.stackexchange.com/questions/180570/invalid-certificate-after-securi ty-update-2015-004-in-mavericks

Network.http.max-persistent-connections-per-server keeps reverting to user set 4

I didn't used to have this problem as far as I'm aware, but as of recently, I've noticed that if I try to download more than 4 of one thing at a time from the same site, it would fail. For instance, if I have up 5 web pages of streaming content, only 4 will load, the other 5th one will do nothing until I finish one of the others. Upon looking up some information on this, I saw that the network.http.max-persistent-connections-per-server is set at "user set = 4", and if I change that number to anything else, it corresponds. If I click to 'reset' the number, it goes to the default of 6 - which is still less than what it used to be. I used to not even have a limit on this as far as I'm aware, or if I did, it was well beyond 10 and that wasn't a product of me manipulating it.
What I'm asking is this:
1) How do I make this so it permanently switches to a higher number? Every time I reset it to 6 or I manually change the number to something higher, once I close it, those settings go back to 4.
2) Why is it reverting and not staying the way I change it?
3) What's the purpose of this and why is it just recently doing it when I haven't put any new add-ons or made any other refinements to Firefox that I'm aware of?
Any help would be appreciated

Two possible causes for it resetting to 4 that I can think of.
# You have an add-on handing that pref and that is resetting it to 4 when Firefox is restarted.
# That pref is set via user.js and that causes it to go to that value as Firefox starts.
http://support.mozilla.com/en-US/kb/troubleshooting+extensions+and+themes <br />
http://kb.mozillazine.org/User.js_file

New retina MacBook Pro - WiFi connectivity problems

Dear all,
I've recently purchased the new Haswell 13" retina MBP, and I'm having exactly the same WiFi connectivity problems the 2013 Airs had. I have a solid connection for a short time, and at irregular intervals it just drops out. All of my other devices are still connected and have no problems. I've tried with two different routers/modems, but the problem persists.
Is this a known problem - with hopefully a software fix in the forseeable future, or do I need to return the MacBook?
Many thanks in advance for your help,
Nic

I haven't got a Retina, but I do have the same wifi problem. And if you've looked at these forums, you'll see it's been going on for years and no one seems to have a handle on what the issue is. All I can say is if I were in your place I'd take it back and exchange it. You have the chance now, so take it.

Acrobat/Reader cannot cope with internal Webserver connectivity problems, leading to comments being hidden/deleted. Any thoughts?

Adobe Acrobat/Reader do not cope with interruptions to access to the internal WebServer hosting the PDF/XML review files.
Steps to reproduce the issue:
Connection is lost to the WebServer hosting the PDF review files.
After connection to the WebServer is regained, access to the PDF review files is blocked by Adobe Acrobat/Reader.
Sometimes this can be resolved by deleting the entire contents of the folder:
C:\Users\<user-name>\AppData\LocalLow\Adobe\Acrobat\11.0\Synchronizer
NOTES:
We have experienced this behaviour especially when connecting to the WebServer via VPN. I reckon the connectivity issues could be initially our problem, that Acrobat/Reader simply do not handle.
Clearing the contents of the Synchronizer folder does not always work.
Team members have also seen situations where significant numbers of review comments or status values have been not been displayed, but exist in the XML review files. In some cases comments/status values have been automatically deleted without warning from the Adobe review XML files.
PDF reviews are sent out via email as links to the PDF review file hosted on an internal WebServer.
Writers and reviewers in the team either have either:
Acrobat XI Pro 11.0.08 with Reader 11.0.08
Acrobat XI Pro 9.5.5 with Reader 11.0.08
I have personally experienced the above behaviour with Acrobat XI Pro 11.0.08 and Reader 11.0.08.
Could this experience be connected the Synchronizer (http://helpx.adobe.com/acrobat/kb/known-issues-acrobat-xi-reader.html )?
For example, where a reviewer uses a different version of Acrobat/Reader?
Could anyone please provide a list of compatible versions of Acrobat/Reader?
Expected results:
Adobe Acrobat/Reader should really handle connection issues with a warning and later check for recovered connections.
However, what appears to be happening is that Acrobat/Reader writes some sort of blocking code to the Synchronizer folder that prevents future checks of the PDF review files on the review WebServer.
As far as I understand, the connection issues are not caused by Adobe software, however the problems we are experiencing relate to how Adobe Acrobat/Reader handle this loss of connection.
Plea for Help!
I have checked and the experience of missing comments and persistent "connectivity issues" seems to be a reported but sadly outstanding issue...
This has been an ongoing headache for some time, so solutions would be great, but any thoughts or suggestions are welcome...?
For example, has anyone using SharePoint to host PDF reviews experienced anything similar?
Many thanks!

Adobe Acrobat 11.0.09 with Microsoft SharePoint Repository Trial Update
We've completed week one of a three week trial (see above) that will go on until Friday 24th October.
We currently have just four PDF files out for review that make use of the SharePoint repository.
To-date:
Each review file has had multiple concurrent reviewers posting comments over several days from both over the office LAN and also via VPN when working remotely.
Dynamic stamps seem to be working as hoped and are all visible.
We have not experienced any connection-type issues and the we have not had reason to clear out the Synchronizer folder as described above.
Counter balance:
I have experienced the situation with a remote VPN connection, where Adobe Acrobat could not connect to our internal WebServer repository. At the same time, I was able to connect to PDF review files hosted in SharePoint.
Summary:
The experience so far does suggest that problems are caused by the an inconsistent connection to the WebServer repository (especially over VPN) combined with Adobe Acrobat/Reader's inability to cope with the resulting situation.
At the moment I must say that while it is early days, I am hopeful that the combination of SharePoint as the repository and the update to Adobe Acrobat/Reader 11.0.09 will continue to prove to be reliable.
I'll provide an update to this post on Friday 24th October...
Here's hoping!

Persistent connections on Cisco ACE

Hello Team,
Currently I have the below persistence settings for the vips and they are set as cookie based which would match where a session cookie is used.The cookie is set for "browser-expire" . So, this will allow the clients browser to expire the cookie when the session ends.
ASH
====
sticky http-cookie http-cookie-default 206.80.50.110:80
cookie insert browser-expire
serverfarm 206.80.50.110:80
sticky http-cookie http-cookie-default 206.80.50.110:443
cookie insert browser-expire
serverfarm 206.80.50.110:443
Please see the following snippet of information from Akamai:
============================================
"It has come to our attention that your Origin does not support pconns. This may possibly result in a significant overhead. Can you enable pconns on the load balancer and also back to the Origin with a idle timeout of 301 or 302 seconds? Our default is 300 secs of idling before terminating a pconn, so one sec more will avoid a race condition (assuming your server and NLB clock is sync'ed using NTP)"
I am assuming that this refers to TCP connections from the Akamai Edge Server to our end Load Balancer
I am presuming that they make a TCP connection(s) to the LB from the Akamai Edge Server and use it for multiple requests from clients and they would need ties connections to remain active for at least 301 seconds
Can this request be made possible. Pls assist. Thanks !!
regards,
Karthik

Hi Karthik,
I believe you are confusing persistence with stickiness. What they mean by a persistent connection is one in which multiple HTTP requests are sent inside the same TCP flow, and ACE will always accept those.
I would suggest you to go back to Akamai and clarify what exactly is the issue, along with some more details on how they reached that conclussion, and then we can see if there is any way to avoid the problems.
Regards
Daniel

There appears to be a persistent connection limit of 2 for cross domain requests

I am building a service that allows anybody to add real-time push updates to their website or web application. To do this I'm using the Access-Control-Allow-Origin header response from a cloud hosted server.
When establishing a connection we create one persistently connected HTTP connection and use a second connection to send requests (subscriptions/commands).
The problem I'm seeing looks very similar to the old 2 socket to a server connection limit (related to about:config "network.http.max-persistent-connections-per-server").
Is there a limitation on the number of persistent cross domain connections that can be established from a single Firefox process? If so, where is the configuration options to override this?
This problem can be easily duplicated by going to the following page in two tabs within the same Firefox process:
http://kwwika.com/Standalone/Demos/WorldCup2010/
You will notice that one page connects and starts to receive updates. The second will not connect until you close the first tab/page.
I'd like to be able to provide feedback to the users of Kwwika about this problem so any information you can provide me with would be very much appreciated.
== URL of affected sites ==
http://kwwika.com/Standalone/Demos/WorldCup2010/
== User Agent ==
Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/533.4 (KHTML, like Gecko) Chrome/5.0.375.70 Safari/533.4

[bump]

MacBook Pro Network Connectivity Problems

Hi everyone!
I am baffled with an issue connecting my MacBook Pro to the internet. My wifi worked okay until about two or three months ago, when it stopped being able to automatically connect to networks. I simply used my phone to pick up the IP/DNS information, and then entered it manually into network settings. Then, last month, that solution stopped working, and I am unable to connect to any network via wifi or Ethernet, even when manually entering IP information.
I have restarted my laptop and router multiple times. Reset the PRAM. Created a new location. Deleted and added the network again. Deleted network settings in Library. Symptoms are not present on other wifi devices – other laptops and devices connect fine.
I am running OS X 10.8.
Any help would be much appreciated!
Thanks!

If you're still on 10.8, then you need to update to 10.8.5 (which, itself, has some bugs) in order to rule out the bugs found in 10.8 through 10.8.4. Use the Combo updater -> http://support.apple.com/kb/DL1676.
If, after updating, your connection problems persist, call back. There's no guarantee that updating is going to 'fix' your problem.
Clinton

Persistent connection problems

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