IChat causes loss of internet connection

I keep losing my internet connection when using iChat (video).
About a month ago I started having intermittent problems with my Comcast cable modem connection. I would lose the connection to the internet, requiring power-cycling the modem to regain it. At its worst, it happened 5x a day, but usually it was once a day. Then I'd go for a long stretch of days with no problems.
More recently my iChat experience degraded. In an hour's chat, I would lose the internet connection 3-4 times.
A few days ago I finally had time to drive the modem to a Comcast office to get it replaced. That same weekend I upgraded my MacBook to Snow Leopard. The internet connection has been solid ever since -- except during the iChat I had yesterday.
I lost the connection four times, but now the modem finds it again without requiring power cycling.
I only use iChat with one other person (my sister, also on Comcast, across the country), so I can't do extensive testing. My sister uses iChat weekly with my parents (video iChat, also using Comcast, in the same town as I am, using a 2009 iMac) and they have no problems.
At the end of the most recent chat, I downgraded the speed to 200kbps. The sound was worse (very muddy) and the picture wasn't as good. I didn't lose the connection, but it generally takes about 10 minutes to fail, and we didn't chat that long at the reduced connection speed. So I can't really say if that helped.
I suspect this is a Comcast problem, but I'm not sure. Their bandwidth caps and hardware "upgrades" have caused all sorts of headaches for me in the past, and there seems to be no way to get accurate information out of them. I have no idea if they're capping my speed, degrading my service, or what.
I'm posting here in the hopes that there is some unknown setting or other trick that I can use in iChat to solve this problem. It's unusable as-is, and very frustrating because it used to be better (and because my parents have no problems).

Whoops, I forgot to add that we're both using MobileMe and Airport Extremes. My sister is wireless and I've tried it both ways (no difference).
The iChat error message that appears when the internet connection is lost and the chat fails is something about "no data received in 10 seconds". The following is the only iChat-specific console log data I could find:
Nov 16 10:04:24 Hawthorne iChatAgent[4966]: [Warning] [AIM] Could not change my visibility to 0
Nov 16 10:04:48 Hawthorne iChat[4964]: ------ startPreview: previewing: 2
Nov 16 10:04:58 Hawthorne iChat[4964]: attribute = {\n VCSupportARDAudioMux = 0;\n shouldFindExternalIP = 1;\n}
Nov 16 10:05:03 Hawthorne iChat[4964]: 111.729685 ICE Attempt ()
Nov 16 10:05:04 Hawthorne iChat[4964]: 112.093984 ICE Success ()
Nov 16 10:05:29 Hawthorne iChat[4964]: 137.502603 Attempt call: Callee
Nov 16 10:05:29 Hawthorne iChat[4964]: 137.502688 Relay Skip ()
Nov 16 10:05:29 Hawthorne iChat[4964]: 137.502739 Viceroy 1.3
Nov 16 10:05:29 Hawthorne iChat[4964]: 137.502781 Secured
Nov 16 10:05:29 Hawthorne iChat[4964]: 137.502821 Not Audio Only
Nov 16 10:05:29 Hawthorne iChat[4964]: 137.502863 Duration = 22
Nov 16 10:05:29 Hawthorne iChat[4964]: 137.502906 AvgBitrateDown = 1918.423500
Nov 16 10:05:29 Hawthorne iChat[4964]: 137.502950 iP2PBWUp / Down = 2098 / 2098
Nov 16 10:05:29 Hawthorne iChat[4964]: 137.503007 (Callee) CallLog(0 - Succeeded) [0x00000102 to 0x00000000] [Up: 2098 Down: 2098] [22(sec)] [AvgBitrate:1918.423500][RemoteHangup][RemoteUA:Viceroy 1.3][Non-SL]
Nov 16 10:05:40 Hawthorne iChat[4964]: ------ startPreview: previewing: 2
Nov 16 10:05:46 Hawthorne iChat[4964]: attribute = {\n VCSupportARDAudioMux = 0;\n shouldFindExternalIP = 1;\n}
Nov 16 10:05:47 Hawthorne iChat[4964]: 154.949693 ICE Attempt ()
Nov 16 10:05:47 Hawthorne iChat[4964]: 155.262658 ICE Success ()
Nov 16 10:05:49 Hawthorne [0x0-0x379379].com.apple.iChat[4964]: resetting echo canceller
Nov 16 10:08:23 Hawthorne iChat[4964]: 311.555334 Attempt call: Callee
Nov 16 10:08:23 Hawthorne iChat[4964]: 311.555500 Relay Skip ()
Nov 16 10:08:23 Hawthorne iChat[4964]: 311.555558 Viceroy 1.3
Nov 16 10:08:23 Hawthorne iChat[4964]: 311.555606 Secured
Nov 16 10:08:23 Hawthorne iChat[4964]: 311.555654 Not Audio Only
Nov 16 10:08:23 Hawthorne iChat[4964]: 311.555702 Duration = 153
Nov 16 10:08:23 Hawthorne iChat[4964]: 311.555752 AvgBitrateDown = 0.000000
Nov 16 10:08:23 Hawthorne iChat[4964]: 311.556083 iP2PBWUp / Down = 2627 / 2627
Nov 16 10:08:23 Hawthorne iChat[4964]: 311.556213 (Callee) CallLog(-20 - Failed) [0x00000102 to 0x00000000] [Up: 2627 Down: 2627] [153(sec)] [AvgBitrate:0.000000][noPacketsFromParty][RemoteUA:Viceroy 1.3][Non-SL]
Nov 16 10:08:23 Hawthorne mDNSResponder[29]: Double NAT (external NAT gateway address 192.168.100.2 is also a private RFC 1918 address)
Nov 16 10:08:53: --- last message repeated 5 times ---
Nov 16 10:09:06 Hawthorne iChat[4964]: ------ startPreview: previewing: 2
Nov 16 10:09:06 Hawthorne iChat[4964]: attribute = {\n VCSupportARDAudioMux = 0;\n shouldFindExternalIP = 1;\n}
Nov 16 10:09:18 Hawthorne iChat[4964]: 366.304304 ICE Attempt ()
Nov 16 10:09:18 Hawthorne iChat[4964]: 366.667889 ICE Success ()
Nov 16 10:09:21 Hawthorne [0x0-0x379379].com.apple.iChat[4964]: resetting echo canceller
Nov 16 10:16:38 Hawthorne iChat[4964]: 806.869120 Attempt call: Caller
Nov 16 10:16:38 Hawthorne iChat[4964]: 806.869217 Relay Skip ()
Nov 16 10:16:38 Hawthorne iChat[4964]: 806.869288 Viceroy 1.3
Nov 16 10:16:38 Hawthorne iChat[4964]: 806.869336 Not secured
Nov 16 10:16:38 Hawthorne iChat[4964]: 806.869384 Not Audio Only
Nov 16 10:16:38 Hawthorne iChat[4964]: 806.869433 Duration = 437
Nov 16 10:16:38 Hawthorne iChat[4964]: 806.869482 AvgBitrateDown = 784.989625
Nov 16 10:16:38 Hawthorne iChat[4964]: 806.870512 iP2PBWUp / Down = 2043 / 2043
Nov 16 10:16:38 Hawthorne iChat[4964]: 806.870699 (Caller) CallLog(0 - Succeeded) [0x00000102 to 0x00000000] [Up: 2043 Down: 2043] [437(sec)] [AvgBitrate:784.989625][EndConference][RemoteUA:Viceroy 1.3][Non-SL]
Nov 16 10:16:43 Hawthorne mDNSResponder[29]: Double NAT (external NAT gateway address 192.168.100.2 is also a private RFC 1918 address)
Nov 16 10:17:37: --- last message repeated 5 times ---
Nov 16 10:17:37 Hawthorne iChat[4964]: ------ startPreview: previewing: 2
Nov 16 10:17:37 Hawthorne iChat[4964]: attribute = {\n VCSupportARDAudioMux = 0;\n shouldFindExternalIP = 1;\n}
Nov 16 10:17:48 Hawthorne iChat[4964]: 876.819367 ICE Attempt ()
Nov 16 10:17:49 Hawthorne iChat[4964]: 877.182767 ICE Success ()
Nov 16 10:17:52 Hawthorne [0x0-0x379379].com.apple.iChat[4964]: resetting echo canceller
Nov 16 10:32:15 Hawthorne iChat[4964]: 1743.749165 Attempt call: Caller
Nov 16 10:32:15 Hawthorne iChat[4964]: 1743.749262 Relay Skip ()
Nov 16 10:32:15 Hawthorne iChat[4964]: 1743.749367 Viceroy 1.3
Nov 16 10:32:15 Hawthorne iChat[4964]: 1743.749417 Not secured
Nov 16 10:32:15 Hawthorne iChat[4964]: 1743.749465 Not Audio Only
Nov 16 10:32:15 Hawthorne iChat[4964]: 1743.749514 Duration = 863
Nov 16 10:32:15 Hawthorne iChat[4964]: 1743.749565 AvgBitrateDown = 530.957437
Nov 16 10:32:15 Hawthorne iChat[4964]: 1743.749782 iP2PBWUp / Down = 2434 / 2434
Nov 16 10:32:15 Hawthorne iChat[4964]: 1743.749911 (Caller) CallLog(0 - Succeeded) [0x00000102 to 0x00000000] [Up: 2434 Down: 2434] [863(sec)] [AvgBitrate:530.957437][EndConference][RemoteUA:Viceroy 1.3][Non-SL]
Nov 16 10:32:17 Hawthorne mDNSResponder[29]: Double NAT (external NAT gateway address 192.168.100.2 is also a private RFC 1918 address)
Nov 16 10:32:31: --- last message repeated 4 times ---
Nov 16 10:32:31 Hawthorne iChat[4964]: ------ startPreview: previewing: 2
Nov 16 10:32:33 Hawthorne mDNSResponder[29]: Double NAT (external NAT gateway address 192.168.100.2 is also a private RFC 1918 address)
Nov 16 10:32:56 Hawthorne iChat[4964]: ------ startPreview: previewing: 2
Nov 16 10:32:56 Hawthorne iChat[4964]: attribute = {\n VCSupportARDAudioMux = 0;\n shouldFindExternalIP = 1;\n}
Nov 16 10:33:26 Hawthorne ntpd[244]: time reset +0.285562 s
Nov 16 10:33:30 Hawthorne iChat[4964]: 1818.092031 ICE Attempt ()
Nov 16 10:33:30 Hawthorne iChat[4964]: 1818.456037 ICE Success ()
Nov 16 10:33:33 Hawthorne [0x0-0x379379].com.apple.iChat[4964]: resetting echo canceller
Nov 16 10:37:36 Hawthorne mDNSResponder[29]: Double NAT (external NAT gateway address 192.168.100.2 is also a private RFC 1918 address)
Nov 16 10:37:36: --- last message repeated 1 time ---
Nov 16 10:37:36 Hawthorne iChat[4964]: 2064.632881 Attempt call: Caller
Nov 16 10:37:36 Hawthorne iChat[4964]: 2064.632968 Relay Skip ()
Nov 16 10:37:36 Hawthorne iChat[4964]: 2064.633022 Viceroy 1.3
Nov 16 10:37:36 Hawthorne iChat[4964]: 2064.633068 Not secured
Nov 16 10:37:36 Hawthorne iChat[4964]: 2064.633110 Not Audio Only
Nov 16 10:37:36 Hawthorne iChat[4964]: 2064.633154 Duration = 243
Nov 16 10:37:36 Hawthorne iChat[4964]: 2064.633198 AvgBitrateDown = 0.000000
Nov 16 10:37:36 Hawthorne iChat[4964]: 2064.633294 iP2PBWUp / Down = 2413 / 2413
Nov 16 10:37:36 Hawthorne iChat[4964]: 2064.633710 (Caller) CallLog(-20 - Failed) [0x00000102 to 0x00000000] [Up: 2413 Down: 2413] [243(sec)] [AvgBitrate:0.000000][noPacketsFromParty][RemoteUA:Viceroy 1.3][Non-SL]
Nov 16 10:37:37 Hawthorne mDNSResponder[29]: Double NAT (external NAT gateway address 192.168.100.2 is also a private RFC 1918 address)
Nov 16 10:37:47: --- last message repeated 2 times ---
Nov 16 10:37:47 Hawthorne iChat[4964]: ------ startPreview: previewing: 2
Nov 16 10:37:51 Hawthorne mDNSResponder[29]: Double NAT (external NAT gateway address 192.168.100.2 is also a private RFC 1918 address)
Nov 16 10:38:11 Hawthorne iChat[4964]: ------ startPreview: previewing: 2
Nov 16 10:38:11 Hawthorne iChat[4964]: attribute = {\n VCSupportARDAudioMux = 0;\n shouldFindExternalIP = 1;\n}
Nov 16 10:38:32 Hawthorne iChat[4964]: 2120.585977 ICE Attempt ()
Nov 16 10:38:33 Hawthorne iChat[4964]: 2120.899403 ICE Success ()
Nov 16 10:38:35 Hawthorne [0x0-0x379379].com.apple.iChat[4964]: resetting echo canceller
Nov 16 10:48:13 Hawthorne iChat[4964]: 2701.500597 Attempt call: Caller
Nov 16 10:48:13 Hawthorne iChat[4964]: 2701.500690 Relay Skip ()
Nov 16 10:48:13 Hawthorne iChat[4964]: 2701.500767 Viceroy 1.3
Nov 16 10:48:13 Hawthorne iChat[4964]: 2701.500818 Not secured
Nov 16 10:48:13 Hawthorne iChat[4964]: 2701.500864 Not Audio Only
Nov 16 10:48:13 Hawthorne iChat[4964]: 2701.500911 Duration = 577
Nov 16 10:48:13 Hawthorne iChat[4964]: 2701.500960 AvgBitrateDown = 657.808437
Nov 16 10:48:13 Hawthorne iChat[4964]: 2701.501012 iP2PBWUp / Down = 2610 / 2610
Nov 16 10:48:13 Hawthorne iChat[4964]: 2701.501074 (Caller) CallLog(0 - Succeeded) [0x00000102 to 0x00000000] [Up: 2610 Down: 2610] [577(sec)] [AvgBitrate:657.808437][EndConference][RemoteUA:Viceroy 1.3][Non-SL]
Nov 16 10:48:18 Hawthorne iChat[4964]: ------ startPreview: previewing: 2
Nov 16 10:48:18 Hawthorne mDNSResponder[29]: Double NAT (external NAT gateway address 192.168.100.2 is also a private RFC 1918 address)
Nov 16 10:48:37: --- last message repeated 5 times ---
Nov 16 10:48:37 Hawthorne iChat[4964]: ------ startPreview: previewing: 2
Nov 16 10:49:18 Hawthorne iChat[4964]: ------ startPreview: previewing: 2
Nov 16 10:49:18 Hawthorne iChat[4964]: attribute = {\n VCSupportARDAudioMux = 0;\n shouldFindExternalIP = 1;\n}
Nov 16 10:49:36 Hawthorne iChat[4964]: 2784.081867 ICE Attempt ()
Nov 16 10:49:36 Hawthorne iChat[4964]: 2784.445181 ICE Success ()
Nov 16 10:49:36 Hawthorne [0x0-0x379379].com.apple.iChat[4964]: DeviceManager_SynchAudioProcessingToNewInternalSampleRate = 8000, 160
Nov 16 11:00:54 Hawthorne iChat[4964]: 3462.133781 Attempt call: Caller
Nov 16 11:00:54 Hawthorne iChat[4964]: 3462.133874 Relay Skip ()
Nov 16 11:00:54 Hawthorne iChat[4964]: 3462.133941 Viceroy 1.3
Nov 16 11:00:54 Hawthorne iChat[4964]: 3462.133988 Not secured
Nov 16 11:00:54 Hawthorne iChat[4964]: 3462.134034 Not Audio Only
Nov 16 11:00:54 Hawthorne iChat[4964]: 3462.134081 Duration = 674
Nov 16 11:00:54 Hawthorne iChat[4964]: 3462.134129 AvgBitrateDown = 2151.021000
Nov 16 11:00:54 Hawthorne iChat[4964]: 3462.134178 iP2PBWUp / Down = 2410 / 2410
Nov 16 11:00:54 Hawthorne iChat[4964]: 3462.134239 (Caller) CallLog(0 - Succeeded) [0x00000102 to 0x00000000] [Up: 2410 Down: 2410] [674(sec)] [AvgBitrate:2151.021000][EndConference][RemoteUA:Viceroy 1.3][Non-SL]
Nov 16 11:00:57 Hawthorne iChat[4964]: [Warning] FZVideoConferenceController: _localVideoClientCount decremented below 0!
Nov 16 11:01:02: --- last message repeated 10 times ---
Nov 16 11:01:02 Hawthorne loginwindow[30]: loginwindow SleepWakeCallback WILL sleep
Nov 16 11:28:17 Hawthorne loginwindow[30]: loginwindow SleepWakeCallback will power on, Currenttime:11/16/2009 11:28:17.032 AM - Waketime:11/16/2009 11:28:16.010 AM = Deltatime:1.022415102

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i removed the Norton Security package from my Compaq Presario laptop and since then I have lost my internet connection. I can connect wireless to the Home Hub but no access to the net. I had installed McAfeee but have also now removed this. Contacted Norton but they say not the cause. All other computers in the house can connect with no problem.Any suggestions

Hi Larry,
If you go to Control Panel -> Network Connections (For Vista and Windows 7: Network and Sharing Center) -> Double click on your Network Adaptor (Vista and 7: Top left hand corner of the Network and Sharing Center, click on 'Change Adaptor Settings' and double click on your adaptor. Click Properties and scroll down to 'Internet Protocol Version 4 (TCP /IPv4), click Properties and make sure that 'Obtain an IP Address automatically' and Obtain DNS server address automatically' are ticked. Click Ok, then OK, then finally close. Check to see if you have connectivity. If you don't, go to start, in Run (Or in the search bar) type 'cmd'. Once Command Prompt opens, type 'ipconfig /flushdns'. Close Command Prompt and check again. If you still don't have Internet connectivity, go to Internet explorer and click Tools -> Internet Options (If you have Internet Explorer 7 or 8, press Alt before looking for tools. This will make the bar appear). Go to the Connections Tab and click on 'Lan Settings'. Make sure that you do not have 'Use a proxy server for your LAN' ticked. Also make sure that you have 'Automatically Detect Settings' ticked. Once you have done this, click Ok, Apply and Ok and check again for connectivity. If this didn't resolve your problem please post back
Sorry for the long answer
Cheers
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Intermittent loss of internet connection on Homehu...

Hi Everyone
I have recently taken out a new contract with BT and connected my new Homehub 4 on the 14th February. Seemly it was okay for at least 5 days then I started to experience some intermittent loss of internet on all of the devices, i.e PC, laptop, xbox, it effected both wired and wireless. The hub was showing orange light, which then prompt me to press the reset/restart button on top of the hub.
I have try out my old Homehub 1 for 3 days to see if it effected that one too, but the hub 1 was perfect in term of no loss of connection for 3 day.
Then I connect homehub 4 again on Fri 28th February it was okay for a day, except on 1st march in the morning hub seem to disconnect/reconnect itself. Then around 2310 pm I have loss all connection to the internet through all of my devices again.
Does anyone know what this problem is? It is to do with BT-Wifi Fon, or is the hub 4 faulty and need replacing?
Many Thanks

It was orange central broadband light, there were no other light showing on the silver part.
I have not tried test socket yet, however, I did have a new master socket and line replaced couple year ago, so it would have the new faceplate on there. Plus, the external line etc must be working since hub 1 was working perfectly.
Here the information from speed test
Download Speed:        1.98 Mbps
0 Mbps 2 Mbps
Max Achievable Speed
Download speed achieved during the test was - 1.98 Mbps
For your connection, the acceptable range of speeds is 0.4 Mbps-2 Mbps.
Additional Information:
Your DSL Connection Rate :2.3 Mbps(DOWN-STREAM), 0.45 Mbps(UP-STREAM)
IP Profile for your line is - 2 Mbps
23:17:22, 01 Mar.           ( 86.310000) DSL noise margin: 17.00 dB upstream, 10.20 dB downstream
23:17:22, 01 Mar.           ( 86.130000) DSL line rate: 448 Kbps upstream, 2304 Kbps downstream
Any idea what this mean on the event log? I seem to keep getting PPP LCP send conf request.
23:17:26, 01 Mar.           ( 89.940000) PPP LCP Send Configuration Request
23:17:15, 01 Mar.           ( 78.760000) CWMP: session closed due to error: Could not resolve host

Loss of internet connection, msn application not responding

Ive had a reoccuring problem in the past month or so.
I am on msn and suddenly i realize that no one is answering me. but i still seem to be logged on. and then msn seems to automatically log me off. when i try to log back on, it simply freezes up and i need to force quit as the application is not responding. I also noticed that while this is happening, my internet ages do not seem to load at all. however, it does not say that i have lost my internet connection, it still says i have four full bars.
could someone please help me?
thanks!!

Wow! I have the exact same problem!!! Have you take your mac to some authorized service place?, cause i have, and nothing seem to happened, but i still have trouble with it, so if some one solves your question, pleaseeeee help me too!!!!
Nice to meet you,
Jessy

HT201364 I am not able to download OS X Mavericks after the download process was aborted by loss of internet connectivity momentarily.

I tried to download OS X Mavericks from the APPS store abd it was downloading ok. But after 3.4 GB of data transfer, internet connectivity was lost with message "an error has occurred". Tried to again initiate the download but now downloading is not taking place and I am getting continous error of "an error has occured". Please give procedure to resolve this issue. My current OS is Mountain Lion (10.7.5).

edubarroso wrote:
How to download from a test user?
Please start your own thread for individual attention.
Explain your problem and indentify which Mac you have and which version of OS X it is using.

Loss of Internet connection after software upgrade

After carrying out a software upgrade last weekend which included iTunes 10.4.1, Remote Desktop 3.5.1 I'm finding that my internet connection stalls and the iMac hangs after unspecified periods of time. Sometimes I can carryout a restart, other times I require a hard reset to get the iMac running again.
All will be fine and then once again Internet will stop working and eventually the iMac will hang again.
I've tried a number of actions to see what's going on, there are no processes hung or taking up huge ammounts of CPU. If I try to refresh the IP address of the Ethernet connection from the router this is possible, but you still can't browse to a page.
I've also tried deleting some of the .plist info from the System Prefs area and having Lion re-build them but that hasn't worked either.
My next thought was a complete re-build of Lion from scratch, but before I start down that road, has anyone any other ideas?
System specs are;
iMac 2.8GHz C2Duo
4GB Ram
Running Lion 10.7.1
Many thanks,
Stuart.

Hi Larry,
If you go to Control Panel -> Network Connections (For Vista and Windows 7: Network and Sharing Center) -> Double click on your Network Adaptor (Vista and 7: Top left hand corner of the Network and Sharing Center, click on 'Change Adaptor Settings' and double click on your adaptor. Click Properties and scroll down to 'Internet Protocol Version 4 (TCP /IPv4), click Properties and make sure that 'Obtain an IP Address automatically' and Obtain DNS server address automatically' are ticked. Click Ok, then OK, then finally close. Check to see if you have connectivity. If you don't, go to start, in Run (Or in the search bar) type 'cmd'. Once Command Prompt opens, type 'ipconfig /flushdns'. Close Command Prompt and check again. If you still don't have Internet connectivity, go to Internet explorer and click Tools -> Internet Options (If you have Internet Explorer 7 or 8, press Alt before looking for tools. This will make the bar appear). Go to the Connections Tab and click on 'Lan Settings'. Make sure that you do not have 'Use a proxy server for your LAN' ticked. Also make sure that you have 'Automatically Detect Settings' ticked. Once you have done this, click Ok, Apply and Ok and check again for connectivity. If this didn't resolve your problem please post back
Sorry for the long answer
Cheers
Like this post? Give it a Star . If this post answers your question, please Mark it as the Accepted Solution.

Email accounts lockout along with loss of internet connection

email accounts (2) constantly being locked out with messages advising 'failed internet connection'. Address bar freezes when typing in web addresses and internet drops out/ freezes after a while when veiwing webpage. Server advises all connections are good and that I should contact Apple re Mac settings!! Any suggestions welcome please.

Thanks for that. I have done this previously but the problem reoccurs. The issue is intermitent so it is difficult to know if the problem still exists until it fails again.I had spoken to my server ( Fri 3 ) and the emails were working ok ( typing into the browser address bar froze at the time though ) and then today (Sat ) the emails went down again and the internet dropped out when veiwing webpages.

Loss of Internet connection in Windows 7 Bootcamp

I have just installed Windows 7 through Bootcamp. Everythng is working really well except I can't seem to get an internet connection. There are not even any options for searching for a wireless network.
Can anyone help?

As a person running Windows 7 64-bit under boot camp on a machine with an ATI Radeon 6750M, I can testify that at least that setup works fine. I don't see how a format and reinstall could break any particular element of the new install.
If your machine is anything but a Mac Pro, please ensure you're using the Boot Camp drivers Apple provide rather than the ones you get off ATI's website — the latter will refuse to recognose your card.
If you don't already have a copy, use Boot Camp Assistant to download the Boot Camp drivers for your particular machine.

Loss of internet connection thru airport express

Hi
Every time I download software updates I lose my internet connection.
I then have great difficulty in re-connecting. I have tried using the lock on the network connections to keep the settings , but for some reason the lock is unlocked after a period of time even though I have not requested it. I suspect that there may be a conflict between the keychain access and the airport express but I cannot prove this for sure. Does anyone have any suggestions ?
Fred

Lost connections, slow connections and difficulty connecting can all be due to a noisey phone line. I have a dedicated modem line that was giving me all of these problems. I connected a phone to it and listened, the the noise was terrible. Turns out the phone line was rubbing against a tree and shorting out a half mile away. Now it's fixed, and works great.
15" Flat Panel iMac 800 MHz Mac OS X (10.4.5) airport express

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