Lion & ATV (1) Sync Problems

Last week Apple installed more memory and a 2T hard drive in my Mac when my original HD crashed. I had to restore all data from my Time Machine external drive. After I restored all of the data, I updated my OS to Lion. This is when the many issues syncing my ATV (1) began:
* ATV does not show up in the devices list each time I open iTunes. When it does not show up, I am still able to connect to the ATV with Airplay and stream music but the ATV does not sync.
* If it does show up in devices and it starts to sync, it will only sync about 10 television shows before displaying the Firewall Error 3689.
I have tried the following with no effect:
* I have re-connected my ATV with iTunes and re-entered the code
* I have added iTunes to the Firewall list
* I have turned the Firewall off
* I am using the latest version of iTunes
* ATV is updated as well.
* I also made sure the computer does not go into sleep or standby
Any suggestions? My ATV has worked flawlessly since day one out of the box, and now this. Could my new hard drive be a problem?

Little unsure about mentioning it because it's little more than a thought at this stage, but I'm begining to think Lion might be a little less tolerant of poor networks.
What sort of signal strength do you have, have you considered interference.
Intermittent problems are often a result of interference. Interference can be caused by other networks in the neighbourhood or from household electrical items.
You can download and install iStumbler (NetStumbler for windows users) to help you see which channels are used by neighbouring networks so that you can avoid them, but iStumbler will not see household items.
Refer to your router manual for instructions on changing your wifi channel.
There are other types of problems that can affect networks, but this is by far the most common, hence worth mentioning first.

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Sorry Capoho for calling you the "other person" just didn't remember you screen name but am thankful for your input. I sure hope it is only an itunes problem.
*Winston*, I tried setting up another account and brought up itunes and had to agree to terms, blah blah blah, and atv didn't come up, however, the homesharing showed up, which it doesn't on the adminstrators account (my original account) anymore, which is another issue. However, I can say this, since I have "repaired permissions" atv is acting like it did when I downloaded itunes 9.0. If I tell it to sync everthing that I wanted to it will only sync in sections. For instance, I had it sync, a couple of movies, 3 playlist and music videos, 1 tv program, and around 2000 pictures and having that download first. Yesterday, it downloaded all the pictures and then quick syncing. Last night it downloaded the tv program and the music videos and then quick syncing. It usually would download one movie and then quit syncing???? Network problem?, atv problem?, itunes Problem?
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Message was edited by:

I have two ATV G2 and one ATV G1 at home with the same iTunes library. I have played two different movies in the ATVs. One interesting thing you get is that you can start one movie and pause it and then you can continue playing it in the other ATV. The iTunes controls where you pause or stop the movie.
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Syncing has never been an issue until last week.
My ATV is synced to my MacBook Pro. Last week when I switched on the MBP and opened iTunes it started to sync, but strangely instead of showing my ATV content at approx. 100GB it showed it to be only approx. 20GB and was trying to sync 1,750+ files to the Apple TV. This didn't make any sense as a) I hadn't changed any settings and b) the only new content on the MBP was a couple of new pod casts. Anyway it wouldn't sync, just would get past the first file. What was even stranger was that all the content (i.e. over 100 GB) was still available on the ATV. Even if I switched the MBP off (i.e. it wasn't being streamed from the MBP) it was actually still on the ATV even though iTunes on the MBP said it wasn't and was trying to sync it back on.
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Similar problem. I've had the AppleTV for 6 months now and its been flawless until the last two weeks.
I noticed one night that iTunes said it was syncing with AppleTV. Nothing weird about that. When I woke up it still said it was syncing...not normal. I packed up my MacBookPro and left for work. Got home and noticed the same hours and hours of syncing, but for no reason. Content was still on the ATV, so I saw no reason for the sync.
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Hi Sydness,
Thank you very much for your help. It just worked fine. I have 4 macs in my company for 25 years (one is updated each year), and it is the first time I could not solve a problem for weeks. It gave me the opportunity to join this great community.
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Sydness wrote:
I reset my SyncServices and the calendar sync worked perfectly after that.
I followed the instructions found here:
http://support.apple.com/kb/TS1627?viewlocale=en_US
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Ironsmacker wrote:
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Yes...finally! See my solution here at:
http://supportforums.blackberry.com/t5/BlackBerry-for-Mac/No-alerts-for-iCal-events/td-p/457937

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Thanks No1_Slumko.
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Despite how I have my apps, OSX Audio Midi Setup, and my Apogee One set (everything set to either 44 or everything set to 48), I always end up with an audio sync problem with Photobooth now in Mountain Lion. It never occured before I upgraded. It's far too out of sync to simply be a system resource issue. It's cleary a 44/48 descrepencey. It's way out of sync. If I go into Audio Midi Setup and ensure everything is 48, restart my computer, then Photobooth works fine. Yet the second I start up an app like Garageband, the Photobooth audio jumps way out of sync. Despite having the Garageband settings right (In GB audio settings I've tried both "System Setting" and "One") This happens regardless of what app I use - GB, Logic or Kontakt - all set to whatever the system settings are.
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Hi!
Wonder if I am missing something. my ATV only syncs purchased music. I can stream any of my albums (most of them are MP3) but when I sync, only one album which I purchased on iTunes is being transfered to the ATV.
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