Connection to the host was unexpectedly lost.

I'm still having problems connecting to AIM using iChat. I switched to port 443, and I still get the message that the connection to the host was unexpectedly lost.

Ok,
Do you have individual wall sockets ?
Do you have a router in the room ?
IS your Wireless card set up for Interference Robustness ?
How are the ports opened in the modem ?
UPnP for two computers ?
7:45 PM Monday; September 10, 2007

Similar Messages

"The connection to the host was unexpectedly lost"

Occasionally when I try to log in to my AIM account, I get the message, "The connection to the host was unexpectedly lost." This happens randomly and if I keep pushing it, sometimes it will let me on. It seems to be entirely at the will of the computer.

Try the Combo Update to get to 10.4.11
PCC computer use this http://www.apple.com/downloads/macosx/apple/macosx_updates/macosx10411comboupdat eppc.html
Intel ones use this http://www.apple.com/downloads/macosx/apple/macosx_updates/macosx10411comboupdat eintel.html
9:16 PM Wednesday; March 31, 2010
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"

The connection to the host was unexpectedly lost. AIM

I am trying to connect to AIM via iChat in Mac OS X Tiger. Everytime I try to connect it shows my buddy list for about 1-2 seconds and then says, "The connection to the host was unexpectedly lost." I don't have aim connected on this computer or any other computer on the network when I try. Any help or recommendations are appreciated.
Thanks

124333.047765 Loading hardware rules from hardwarerulesH264-G4.plist
124333.047851 Checking H264 hardware rules
124333.047889 Satisfied rule #1 (20:640x480)
124333.048134 setLocalUserName: myname@myip
124333.174734 Default video size is (640x480)
124333.318247 ### NEW STATE: to: VC_INIT, from: VC_INVALID
124333.319157 ### NEW STATE: to: VC_IDLE, from: VC_INIT
124333.319198 ++++++++ confStatusMapRemoveAll
124333.319238 ( ) -- mapUserIDToSecurityInfo cleared --
124333.319423 UPnP init passed
124333.319569 NATTraversal created
124333.319697 QT automatic setting = 16777216
124333.319708 Bandwidth based on QT prefs = 0
124333.382414 UPnP Router Info:
- manufacturer [NETGEAR, Inc.]
- friendly name [Residential Gateway]
- model name [RangeMax(TM) Wireless Router]
- model desc [RangeMax(TM) Wireless Router]
124333.382654 UPnP: Begin TCPProc
124335.591339 BWD: cache: '[myip:255.255.255.0]' != '[myip:255.255.255.0]'
124335.591361 BWD: Launching thread to determine focus capability based on bandwidth.
124335.591509 QT automatic setting = 16777216
124335.591541 BWD: Using QuickTime value: 0
124335.591569 BWD bandwidth: 0 kbits up, 0 kbits down.
124335.591595 videoNetworkCapable: 0 -- 0 max participants.
124335.591628 audioNetworkCapable: 0 -- 0 max participants.
124335.591710 vcCapabilities returns: 0x00000007
124335.591738 VCCapAudio
124335.591838 VCCapVideo
124335.591912 VCCapMultiAudio
124335.830696 BWD Configuration Data: bwdstart://snatmap.mac.com:16384
bwdcount:1
(16384/1)
124335.830753 Connect to bwd server:16384/1 from configuration file.
124335.840447 Found 1 cameras:
124335.840516 Built-in iSight - -46137344
124335.842033 selectCameraByGUID: -46137344 returned 1
124335.847738 BWD_GetBandwidth: SendRequest (from :16392)
124335.882925 BWD_GetBandwidth: GotResponse
124335.898912 Microphone devices:
124335.899039 Internal microphone
124335.899114 Line In
124335.899175 selectedCamera GUID returned Built-in iSight
124335.913958 selectedCamera GUID returned Built-in iSight
124335.914034 Selected mic: Built-in Mic / imic
124335.914177 Found 1 cameras:
124335.914210 Built-in iSight - -46137344
124335.914256 selectedCamera GUID returned Built-in iSight
124335.916223 Microphone devices:
124335.916299 Internal microphone
124335.916369 Line In
124335.916407 selectedCamera GUID returned Built-in iSight
124335.916457 selectedCamera GUID returned Built-in iSight
124335.916503 Selected mic: Built-in Mic / imic
124335.916584 Found 1 cameras:
124335.916601 Built-in iSight - -46137344
124335.916639 selectedCamera GUID returned Built-in iSight
124335.918550 Microphone devices:
124335.918625 Internal microphone
124335.918712 Line In
124335.918746 selectedCamera GUID returned Built-in iSight
124335.918795 selectedCamera GUID returned Built-in iSight
124335.918856 Selected mic: Built-in Mic / imic
124336.650053 BWD cache: saving [myip:255.255.255.0]:433131/[email protected]
124336.651405 GotBandwidth: 433131/2532198 (up/down) @[myip:255.255.255.0]
124336.652837 BWD bandwidth: 433 kbits up, 2532 kbits down.
124336.652849 videoNetworkCapable: 1 -- 3 max participants.
124336.652859 audioNetworkCapable: 1 -- 9 max participants.
124336.652889 Focus Capability (after BWD):
124336.652921 audioHardwareCapable = 1
124336.652943 maxAudioParticipantsBasedOnHardware = 9
124336.652967 audioNetworkCapable = 1
124336.653029 maxAudioParticipants = 9
124336.653060 canBeAudioMultipointParticipant = 1
124336.653088 videoHardwareCapable = 1
124336.653119 maxVideoParticipantsBasedOnHardware = 3
124336.653147 videoNetworkCapable = 1
124336.653177 maxVideoParticipants = 3
124336.653205 canBeVideoMultipointParticipant = 1
124336.653236 detectedUpstreamKbits = 433
124336.653264 detectedDownstreamKbits = 2532
124336.653294 Sending VCCapabilitiesDidChangeNotification
124336.653520 BWD: GotBandwidth: 433131/2532198 (up/down) @[myip:255.255.255.0]
124336.653535 BWD bandwidth: 433 kbits up, 2532 kbits down.
124336.653543 videoNetworkCapable: 1 -- 3 max participants.
124336.653564 audioNetworkCapable: 1 -- 9 max participants.
124336.653628 vcCapabilities returns: 0x0000003f
124336.653651 VCCapAudio
124336.653698 VCCapVideo
124336.653720 VCCapMultiAudio
124336.653765 VCCapMultiVideo
124336.653795 VCCapMultiAudioHost
124336.653823 VCCapMultiVideoHost
124336.654917 BWD: Launched thread done.
124336.655078 Found 1 cameras:
124336.655123 Built-in iSight - -46137344
124336.655171 selectedCamera GUID returned Built-in iSight
124336.657146 Microphone devices:
124336.657220 Internal microphone
124336.657309 Line In
124336.657346 selectedCamera GUID returned Built-in iSight
124336.657396 selectedCamera GUID returned Built-in iSight
124336.657452 Selected mic: Built-in Mic / imic
124336.672544 Found 1 cameras:
124336.672585 Built-in iSight - -46137344
124336.672634 selectedCamera GUID returned Built-in iSight
124336.674617 Microphone devices:
124336.674691 Internal microphone
124336.674783 Line In
124336.674822 selectedCamera GUID returned Built-in iSight
124336.674871 selectedCamera GUID returned Built-in iSight
124336.674930 Selected mic: Built-in Mic / imic
124336.675028 Found 1 cameras:
124336.675045 Built-in iSight - -46137344
124336.675095 selectedCamera GUID returned Built-in iSight
124336.677030 Microphone devices:
124336.677205 Internal microphone
124336.677354 Line In
124336.677459 selectedCamera GUID returned Built-in iSight
124336.677563 selectedCamera GUID returned Built-in iSight
124336.677665 Selected mic: Built-in Mic / imic

"The connection to the host was unexpectedly lost" Cannot log into AIM

Every time I try to log into ichat, using AIM service I get this message...
The connection to the host was unexpectedly lost.
However, I can log onto ichat on my other mac. (macbook) And I can access AIM from AIM program on my windows computer....
Everything in preferences is configured right...Can anyone shed some light onto this?
thanks,
Joel

I have this problem, using ichat only (not using aim directly) and posted before in another thread with essentially the same name as this one. I tried all the solutions offered and none worked. BUT I did "solve" my problem. Here's how:
Solution number 1) I connected my macbook via an ethernet connection directly to my cable modem. No other changes at all, no further problems, was able to use ALL features of ichat immediately and quite well (audio and video).
Solution number 2) Since we have several computers at home, we must use a wireless router, a Netgear router. If I connect to the router (which then connects to the cable modem), ichat does not work, and I get the exact message as in this subject line. Going to the Netgear router settings (changing nothing on my macbook), I changed ONE thing only: I disabled the SPI firewall. Then, no problem using ichat to chat, but I still can't use audio or video features.
Hope this helps. For me, it diagnosed the problem with using basic ichat: the SPI firewall on the router. Also, the audio/video problem is a router problem too, which I do not yet know how to fix.
Since I am timid and fearful, I do not want to leave the SPI firewall permanently disabled.

What does this mean?? "The connection to the host was unexpectedly lost."

i get this 95% of the time i try to login:
The connection to the host was unexpectedly lost.
it then closes
i go thru AIM
_*someone please help*_
Message was edited by: migueliguel
Message was edited by: migueliguel

Hi
Try logging on to AIM on port 443 rather than port 5190.
Go to IChat in the menu bar > Preferences > Accounts.
Log out of AIM and then use the Server Settings tab
Set the port to 443.
Log back in again.
Tony

Constantly get "The connection to the host was unexpectedly lost."

When I try to use IChat at home on my PowerBook I get "The connection to the host was unexpectedly lost." as soon as I try to connect. This does not happen at work though. It works fine at work.
I thought it might have something to do with the different ISP's or Router settings on my Netgear wirless router. (At home I connect via ethernet cable.) However it WILL work at home about 5% of the time.
ANy Ideas to troubleshoot?

Hi Scuba Dan,
Check that Systrem Preferences > Quicktime > Streaming tab has the drop set to your Download speed.
http://www.ralphjohnsuk.dsl.pipex.com/page4.html#_quicktime
Also check iChat > Preferences > Video Section Bandwidth drop down is set to NONE.
http://www.ralphjohnsuk.dsl.pipex.com/page4.html#_bandwidth
These two will cap iChat if not set properly.
As Defcom says if these settings are correct you may have a modem that is having trouble wiith forwarding port 5190 on both TCP and UDP protocols.
Changing the setting he mentions drops the login below any Port Forwarding and NAT involvement on your modem and router.
Having said that avoiding NAT and Port forwarding by using UPnP is another way around this. Most Netgears have UPnP enabled as default. You don't need Port Forwarding ANd UPnP. Disable the Port Forwarding settings by Unchecking them.
For others,
Zyxel devices are prone to needing port 443, as are newer devices that want protocols to be set when Port Forwarding.
10:56 PM Tuesday; October 17, 2006

Netgear + "The connection to the host was unexpectedly lost"

I have an 802.11g Netgear router. I just got it, previously I had the exact same router, but 1 "version" behind.. aka it was gray and this one is white, but everything else SEEMS identical.
Everytime I try to connect to iChat now, I get the message:
"Lost connection with AIM
The connection to the host was unexpectedly lost."
My buddy list starts to come up, that message appears, the buddy list closes, and I'm screwed.
I am set to the DMZ. I am using port 5190, but 5191 and other ports work.. but I cannot use audio or video chatting. My client shows up as "not capable" of audio or video (MBP so I'm capable of both, and did both before this new router).
Help is appreciated, and I will gladly hand out cookies to anyone who can help.

Hi
Try this log on to AIM on port 443 rather than port 5190.
Go to IChat > Preferences > Accounts.
Log out of AIM and then use the Server Settings tab
Set the port to 443.
Log back in again.
Tony

IChat: "The connection to the host was unexpectedly lost"

I have I will be talking to people on iChat and will not recieve responses from anyone for a while then suddenly i am kicked off and the error message "The connection to the host was unexpectedly lost" appears. I will log back on and the people whom I was talking to say they were sending me messages and they didnt get any of the messages i had sent.
Thank YoU!!!

Hi Samantha,
Have answered here.
3:50 PM Wednesday; March 1, 2006

Connection to host was unexpectedly lost.

IT keeps saying that every time I try logging into ichat...and even if I get passed that, my buddy list won't show up. This even happens with adium.
Any ideas??

Hi
First try this log on to AIM on port 443 rather than port 5190.
Go to IChat > Preferences > Accounts.
Log out of AIM and then use the Server Settings tab
Set the port to 443.
Log back in again.
Tony

Every time I try to sign on it says that ichat lost the connection to the AIM account and the server connection was unexpectedly lost. How can I fix this?

Every time I try to sign on it says that ichat lost the connection to the AIM account and the server connection was unexpectedly lost. How can I fix this?

Note For others.
For the Port Changes (or server names in some cases) you have to be logged out to make changes on the Server Settings pane.
9:41 PM Friday; October 28, 2011
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb( 10.6.8)
 Mac OS X (10.6.8),
"Limit the Logs to the Bits above Binary Images."  No, Seriously

HT204074 "Connection to the iPad was lost"?

I recently restored my iPad and trying to sync to my MAC however, as soon as it starts to sync the photos I get the "The iPad could not be synced becuase the connection to the iPad was lost" prompt. My iPad is on without the screen lock and also plugged into the computer. Why am I having this issue, it's pretty frustrating that I'm not having trouble syncing my devices.
I don't know if when I restored this iPad I restored it as a "New Device" and did not use a back up.
Please help, I'm royally frustrated.
Chillipepper1

Demo,
Thank you so very much, I rebooted our router (just in case), rebooted my MAC & iPad. This worked wonderfully thank you.

Connection to the phone was lost

I HAVE NOKIA N8
I TRY YPDATE IT BY NOKIA SUIT LAST VERSION
BUT WHEN BE IN STAB N3 MESSAGE ERREUR SAY connection to the phone was lost
WHY IS THAT I TRTY ITRY TRY BUT NO THING
Solved!
Go to Solution.

Try a reinstall on Nokia Suite and also you could try Over the Air update by navigating to SW UPDATE application your N8. Alternatively, if you type *#0000# into your keypad, you can update from tehre too.
If you find this post helpful, a click upon the white star at bottom would always be appreciated.
If it also solves your problem, clicking ACCEPT AS SOLUTION below it will benefit other users!

Connection to the device was lost

I get a "Connection to the device was lost" error from Ovi Suite 3.1.1. 80 when backing up an N900.
What can I do to succesfully backup my N900?
Solved!
Go to Solution.

Ovi Suite can not backup to destination sitting on the network like a NAS or something. This is something the designers of Ovi Suite didn't think of.
Now I backup up to my workstation and have to include the backup of the N900 in my backup of my workstation.
Change Request: Allow backups of Ovi Suite to go on a network drive.

HEX 0x8BBB0011 The connection to the server was disconnected

Hi,
I am using a Network shared variable to control a Loop in FPGA in cRIO 9073. For the past 1 month the program was runing without any issue but suddenly the VI stopped thrwoing an error
"HEX 0x8BBB0011 The connection to the server was disconnected
The error or warning occureed while writing the following shared variable
\\NW-cRio\NW Library\NW_Force_cal
\\169.254.106.130\NW Library\NW_Force_cal"
A screen shot of the VI is attached, the NW_Force_cal is highlighted.
After the VI was closed and rerun the VI resumed running without issues. This kind of unpredictable behaviour is very difficult to handle, I lost real time data recording for 12 hours because of this issue.
Please suggest a solution for this issue.
Thanks
Mukunda
Solved!
Go to Solution.
Attachments:
Vi.png ‏120 KB

The error explained the issue. The network had problems that led to the server being disconnected. The way to fix this problem is to understand what is meant by "real-time." This is just another way to describe deterministic computing. That is, the program guarantees everything will happen within a predetermined period. In order for things to be deterministic, they must be controllable. The most obvious way to break determinism is to prompt the user for input. As we clearly cannot guarantee the user will reply within a certain period, we can no longer call the program deterministic. In this case, we have a more subtle break of determinism. Relying solely on a network will break the determinism. There simply isn't a way to guarantee the network won't get hit harder than usual. In this case, the network was down for a period of time long enough to throw an error.
Here's where we can look to fix things. After the error was thrown, what did the code do with it? The error wire isn't used for anything. I would expect it to throw an error and halt the program. This clearly isn't the behavior you want. So, why aren't we using the wire for some error handling? In the case of an error, you can log the data locally. When you regain the network, you can dump the log back to the host PC you typically use for your data collection. This removes the reliance on your network for the code to work. Using more robust code solves the issue with relatively easy error handling. Unfortunately, there is absolutely nothing anyone here can do to ensure your network never loses connectivity.
Jeff B.
Applications Engineer
National Instruments

ES2: The TCP/IP connection to the host has failed

A very simple error message appears against a stalled livecycle process which runs upon a flex form submission. You'd think that the connection to the server was lost.This custom process ("completion") is attempting to write out to the backend database at that time.
However,the "read" process to prepopulate the form already correctly uses the same JNDI connection. And that works. Every time.
The solution was to go into the "completion" process and move around the individual nodes, re-save and deploy again
Why is this - seems to be more problems in ES2 than we bargained for perhaps.

"Connection refused" means that the client sends a packet saying "I would like to connect to port number NNNN please" to the server computer, and the server computer's OS sends the reply "there is no process listening to that port on the network interface you are using".
The database server is not running, or running but not listening to TCP/IP connections, or at a different port from what you think, or listening to only selected network interfaces (it is possible for a process to listen to a specific interface or a wildcard for all interfaces). A less likely scenario is that a firewall is sending the "connection refused" message.
First aid check list for "connection refused":
- Check host name in connect string.
- Check port number in connect string.
- Try numeric IP address of server host in connect string, in case name server is hosed.
- Are there any firewalls between client and server blocking the port.
- Check that the db server is running.
- Check that the db server is listening to the port. On the server, try: "telnet localhost the-port-number". Or "netstat -an", there should be a listening entry for the port. You need to configure the database to accept TCP connections; the server documentation or google should explain how.
- Try "telnet server-host-name the-port-number" from the client, to see if firewalls are blocking it.
- If "telnet" fails: try telnet with the numeric ip address.
- If "telnet" fails: does it fail immediately or after an obvious timeout? How long is the timeout?
- Does the server respond to "ping serverhost" or "telnet serverhost" or "ssh serverhost"?

Connection to the host was unexpectedly lost.

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