Latency when 5 apple TV is connected in a Single network

Hi,
I am thinking of setting up 5 apple tv in a single network. Each apple tv is connected to a HD TV display the streaming from a specific iPad. Wonder if the display on the tv will be laggy.
Thank in advance,

Welcome to the Apple community.
Using five Apple TVs and airplay simultaneously may cause a single network problems. I have seven Apple TV's at home, but have created multiple base stations all connected to the same network via ethernet to cope with this.

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HT5437 When I try to connect to a WiFi network that I need a screen pops up and says "The network you're attempting to join requires you to install a profile on your Apple TV." What does this mean?

When I try to connect to a WiFi network that I need a screen pops up and says "The network you're attempting to join requires you to install a profile on your Apple TV." What does this mean?

Yes, home sharing requires both to be on the same wifi network. As it stands access to the network requires the login via webpage, which cannot be done on Apple TV. You will need to speak to IT in order to grant access for the device.

I have update my iphone, 4 days ago and now when i try to connect it to a network it says unable to join and before i update, it worked perfect so if u guys know anything about it please let me know

i have update my iphone, 4 days ago and now when i try to connect it to a network it says unable to join and before i update, it worked perfect so if u guys know anything about it please let me know!
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Place the iOS device in Recovery Mode and then connect to your computer and restore via iTunes. The iPod will be erased.
iOS: Forgot passcode or device disabled
If recovery mode does not work try DFU mode.
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
For how to restore:
iTunes: Restoring iOS software
To restore from backup see:
iOS: Back up and restore your iOS device with iCloud or iTunes
If you restore from iCloud backup the apps will be automatically downloaded. If you restore from iTunes backup the apps and music have to be in the iTunes library since synced media like apps and music are not included in the backup of the iOS device that iTunes makes.
You can redownload most iTunes purchases by:
Downloading past purchases from the App Store, iBookstore, and iTunes Store
If problem what happens or does not happen and when in the instructions? When you successfully get the iPod in recovery mode and connect to computer iTunes should say it found an iPod in recovery mode.
If not backup you MAY be able to get some info from the restored iPod via
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Wondershare Dr.Fone for iOS: iPhone Data Recovery - Wondershare Official
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My Apple Tv is connecting to the Wifi network but is not connect to the internet. So when I look for it on my Airplay it doesn't come up. I have 3 other ones already working on the network and they are all fine.

My apple TV is finding and connecting to the Wifi network but then says it is not connected to the internet and then I cannot find it on the iPad through airplay. I don't want it connected to the internet (as in www.) because for the use I have I only need to use the Apple tvs locally in a sports hall as scoreboards. I have 3 others working on the same router and they are working fine (as of yesterday)
On my screen I see (obviously not written like this)
network connect- yes
signal strength- fine
Ip address- fine
DCN- fine
Activation- Failed
This is the only negative I can find and the statement that the Apple TV has connected to the wifi but is not connected to the internet.
Where has it gone wrong for me. Please help

It is not properly connected to the network.
Make sure location is set correctly
DNS should be on auto (settings - general - network)
Try ethernet
Signal strength on device won't account for issues, you would need a network report from istumbler, netstumbler or similar. This will show accurate signal strength along with noise and nearby networks

2nd. gen Apple TV not connecting to wi-fi network

Our 2nd. gen Apple TV has been working fine for years but suddenly (I suspect since the upgrade to software v. 6) it has trouble connecting to our wi-fi network, Whenever I turn it on, it says that "Apple TV can't connect to the network," even though when I look at the network settings, it shows the network and full signal strength. All of our other wireless devices work just fine with the network. Restarting it doesn't solve the problem, nor does uplugging it, or resetting it. The only thing that works is to reset the router (we use Time Capsule). Once we do that, everything works fine again. But then the next time we use it, it displays the same message when I turn it on and I have to go through the same steps all over. I don't really want to have to reset the router every time I want to use Apple TV.
I am running 6.0.1 on Apple TV and have the latest update on Time Capsule. Any ideas on what the problem might be and how I might fix it?

My problem solved itself. I think the problem was a conflict between my Apple TV and a printer on my network. For a completely unrelated reason, I had to remove the printer off the network. Once it was gone, Apple TV has been working fine. So, you may want to try removing other things from your network and see if that solves the problem. It was just a fluke that I figured it out.

Apple Remote desktop connection with different internet network

I did purchase "Apple Remote Desktop"in mac app store, it works well in the same wifi's network but when i try to use different network, but i won't connect.
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Please help
Mac OS: 10.9.1
Apple Remote Desktop: 3.7.1

The first thing I'd suggest is that you talk to your network support group and make sure that the necessary IP ports, primarly 3283 and 5900, are open between the two networks. If those are blocked, ARD can't connect.
Hope that helps.

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I often have an issue when travelling in Europe and go to an Internet café with my iPhone.
I enter all the info and in wifi settings the network is ticked to say connected. The wifi icon is also visible in menu bar but whenever I try to connect I get a message that page is not available or to check settings.
Can't see anything wrong and settings are as they normal are when connecting to wifi at home in UK.
I also get this when connecting to free public wifi even when it requires no password
Any ideas why this may be? Travelling this weekend and am sure this will be an issue whilst away so would like to get to bottom of it.
Message was edited by: RDH

Thanks for the suggestion but that is not practical once I arrive to Spain.
Will not be taking a Mac to restore from if there is an issue.
Restore network settings is worth looking at but full restore of iPhone is out of the question. Just wondered if this is a known issue with a simple fix.
All seems a bit like using a sledgehammer to crack a nut ;-)

One solution for Apple TV losing connection to its iTunes Library

In 2012 I bought an Apple TV3 to let me use the AirPlay features of my New iPad with my HD TV. All worked fine and still does. Later in 2012 I subscribed to Netflix and enjoyed streaming movies to my HD TV via the Apple TV. Having had such a good experience with it so far I bought another for our bedroom TV and another for a relative, hoping they would have the same great experience with it.
Both of my Apple TV units at my house have worked flawlessly since installing them. We can start watching a Netflix movie downstairs then go upstairs and carry on where the movie left off.
At my relative's house the experience was not so flawless and has resulted in about 2 months of frustration but happily their AppleTV3 is now also working as expected. It has been quite a journey to get to this point and had a surprising solution.
I am the 'go-to' person in my family for these things so I installed the Apple TV for my relative.
My relative has a Windows XP (SP3) PC running the latest iTunes (11.0.2), a BTHomeHub 2 router, connected by WiFi to the Apple TV. The PC was connected by ethernet cable to the router. I installed the Apple TV, set up the hdmi connection to the HD TV, connected it to the WiFi network, upgraded to the latest iTunes on the PC, added the Apple ID for Home Sharing to iTunes and the Apple TV and could connect to the iTunes library on the PC, all good so far. I could play video or music or podcast or view photos from the iTunes library on the PC but after a short time (a few minutes or so), if I tried to play a different video or music track the I would get the familiar spinning icon and the Apple TV would not play the media file. Often the Apple TV would still show the contents of the iTunes library but would not play anything from it. When it was in this state it was still possible to play iTunes Trailers or Purchased content or a Youtube video or display photos from my library. This proved it was still connected to the internet and to some extent my library on the PC because it could display photos.
Initially I thought it was a WiFi problem as that was how the Apple TV was connected to the router. So as I already had a Powerline ethernet link running from the router to the TV for the Humax Freeview box for the BBC iPlayer, I ordered a small network switch to share the Powerline ethernet cable with the Apple TV. However the same drooping connection problems were apparent. I tried changing the QoS settings on the Powerline link, tried to prioritise TCP or UDP or both , but no improvement. I decided to abandon the Powerline link in case it was 'too slow', perhaps that was the issue.
I tried one of the Apple TV units from my house, where they were working fine and I got the same problem, at my relative's house it behaved like their unit, it would connect play a movie (all the way through if we let it) but after a few minutes if trying to play something else it would not play anything further. I tried their Apple TV at my house and it worked there, so the unit was not at fault.
At various times while troubleshooting these problems I have unistalled iTunes, reinstalled it, uninstalled Bonjour, reinstalled it (it comes with iTunes), searched the registry and cleaned it (Warning: do this at your own risk as you risk destabilising Windows), I have tried disabling my firewall on the PC and/or on the router, uninstalled the Antivirus / Firewall software (Norton) on the PC, I have added the Ports required for the Apple TV to my router and firewall software, I have read many, many forum posts about what has worked for other people and I tried them all in various combinations.
I decided having tried the above that the problem must be the Windows PC, so I swapped it for a few days with a laptop, connected wirelessly to the router. I had an iTunes library on the laptop so I shared it with the Apple TV and stopped iTunes running on my relative's PC. For a few days it actually worked, the Apple TV would play one movie/music track and I could select another and play it after a few minutes, a partial solution had been found except the laptop was needed elsewhere and I wanted the Windows PC to be the source for the iTunes library. I briefly considered suggesting they should buy a modern PC or Mac as their Windows PC was around 9 years old, may be that was the problem? This would have cost around £400+ and was out of the question. Fortunately I had a spare PC and I decided to swap it with the Windows PC, it was only a couple of years old and as such it must be 'better' I thought. Swapping one PC with another and transferring e-mails and documents etc. took quite a few hours but it was done. I uninstalled iTunes, reinstalled it and set up the home sharing again. This second Windows PC was running XP (SP3) and Norton 360 Firewall/Anitvirus software. I checked that after installing iTunes the Program rules in Norton were allowing the TCP and UDP communications expected by the Apple TV, I noted these were not specific ports but all TCP and all UDP communications were allowed. All of this met the recommendations that other posts had suggested. I tried it with the Apple TV but no, exactly the same problem, the iTunes library could not be found after a few minutes.
I found that if I restarted the Apple TV it would connect and play a file (movie/music etc) but if I played an iTunes trailer or just waited a minute or so then it would lose the connection. Another symptom would be when I landed on the 'Compters' icon it would tell me to 'enable home sharing on the PC with this Apple ID' , which I had already done.
If I tried playing via the Apple TV while selecting tracks from within iTunes on the PC, then sometimes the AirPlay icon was present or not present, sometimes worked and would then always not work until I restarted at least iTunes and the Apple TV, if not also the router or PC, whatever I tried it would not result in a connection between the Apple TV and the PC that would survive more than a few moniutes at a time.
Having swapped the Windows PC hosting the iTunes library with another I swapped the Apple TV again with one from my house, again same behaviour. So this suggested the problem was the BTHomeHub router as that was the only bit of hardware not exchanged. I compared its settings with the same unit at my house, I tried forwarding ports, I tried chaging the security from the default 'WPA & WPA2' to WPA or WPA2, still no solution. I tried reducing the default WiFi connection protocol from 802b/g/n to 802/b/g. I tried variations of all the other possible settings that could be changed but in the end set them to match the ones at my house. Still no solution. I considered buying an Airport Extreme or similar to link that via an ethernet cable to the router and enable it to be the WiFi access point for the Apple TV. This would have cost around £80 similar to the cost of the Apple TV itself, so was also dismissed as an idea.
I decided to restore the router to factory settings, this was done and I set up the WiFi connection again to the Apple TV, still no solution, same behaviour on the Apple TV. I decided it must be a problem with the WiFi so I tried a direct ethernet cable trailed through the house from the router to the Apple TV to eliminate the WiFi involvement, that would have to be the answer, wouldn't it? No, same problem.
I discovered some useful diagnostics along the way that are somewhat techie but worth persevering with as they could be useful for diagnosing what the problem could be. Find out on your router what the IP Address is for your computer that is hosting your iTunes library and the IP Address for your Apple TV. The IP address is essential for either device to connect with each other or the internet. The Apple TV IP address can be seen via Settings/General/Network, it has the form like '192.168.1.69' and for the PC it was '192.168.1.80', the values don't have a particular significance but the last digits after the 3rd dot will be different for each device.
On the PC (or Mac), open a Command (PC) or Terminal(Mac) prompt and try to 'ping' the Apple TV to see if you get a response
e.g.
c:\ping 192.168.1.69
or
c:\ping apple-tv
You should get a response indicating the number of milliseconds it takes for the 'ping' to be returned to the PC from the Apple TV , this will show that the PC can connect to the Apple TV, if it does not get a response then you should check that the PC and Apple TV are connected to the same network (either wired or wifi). You must be able to get a successful ping for the connection between the PC and the Apple TV to work at all.
Another diagnostic is to check the network status on the PC (or Mac)
e.g.
c:\netstat -an
This will show all the current TCP/UDP connections and also the local and remote IP addresses and ports. Look for the IP address of the Apple TV in the third column, there will be many rows returned so just concentrate on the rows with the IP addressses of the PC and the Apple TV
e.g. look for rows like the following:
TCP 192.169.1.80:3689 192.168.1.69:49123 ESTABLISHED
UDP 192.168.1.80:5353 *.*
UDP *.123 *.*
TCP Port 3689 is used by the Apple TV to communicate with iTunes for playing content. This connection is essential, there may be more than one 'established' connection to the remote Apple TV from the local PC.
UDP Port 5353 is used by the Apple Bonjour service to send multicast communications between iTunes and any iOS devices on the same network, such as the Apple TV, again it is essential.
Port 123 is used by Apple products to obtain the date and time, the UDP row above shows that any local IP Address can communicate with any remote IP address on the router's network and provide it with date and time information.
If your firewall software on the PC is blocking any of these ports then the 'netstat' command is useful to see if you need to unblock any. In my experience, this port unblocking was not necessary as when I installed iTunes, the Norton software automatically set up appropriate rules for the iTunes program, and opened the required TCP and UDP communications as iTunes needed.
Likewise, on the router itself, I have the UPnP setting enabled and this allows software like iTunes and Bonjour to traverse the router's firewall without it being necesssary to explicitly set the ports to be forwarded.
If I started the Apple TV, and ran the 'netstat -an' command over the next few minutes I could see the number of rows for the Apple TV diminish, and this was a symptom of the dropping connection problem.
Ultimately having replaced the Apple TV with another 'working' one , swapped the PC, restored the router to factory defaults, disabled the Windows or Norton firewall, tried ethernet and WiFi connection between the router and Apple TV it struck me that the only component I had not considered was the insignificant ethernet cable linking the PC to the router. This has been present since the router was installed for the original PC around 4 years ago. But surely this was how the original PC and the swapped in PC were getting to the internet quite normally and successfully? Also this was how the Apple TV was accessing the PC via WiFi then via the router through this ethernet cable, there was no way it could be the cable, cables don't allow a connection for a short time and then cause a timeout can they?. Thus, confused, and with all other avenues explored, I removed the cable between the PC and the router and enabled a WiFi connection from the PC to the router. After restarting the PC, Router and Apple TV, just to be sure, I tried the Apple TV again.
I could play some music on the Apple TV from the iTunes library, I could play it for a minute or so and then go to movies and play a movie from the iTunes library. I tried to play an iTunes trailer, some YouTube videos, these worked as usual. I then went back to the library and yes, I could play another music track or another movie. I forced the Apple TV to 'sleep' via Settings/General/Sleep Now and tried again, I woke it up and could play any music or movie from the library. Elated, I went out for meal with the family, nervously hoping throughout the meal that the solution had been found. After a couple of hours we returned, woke up the Apple TV and yes, oh yes!, it would connect with the library and play a succession of music or videos without seeing any dropped connections. Several hours later I could wake up the Apple TV again and select any content from the iTunes library on the PC and play it, finally the unit is behaving as I would expect.
This solution may not apply for all, but it worth following all of the components in the path between the Apple TV, router, computer (either PC or Mac) and the iTunes library and checking that each is able to commmunicate successfully and over a period of time reliably so that the Apple TV can perform as flawlessly as it is capable of.
Don't, as I did expect the solution to involve a complicated series of special settings of ports or communications protocol changes. Do perform a clean install of iTunes and keep it updated, do keep Firewall settings simple and let the settings be default settings, do rely on UPnP (Universal Plug and Play) on the router. Let the router select which channel it wants to use, it will select the channel with least interference...and check out that insignificant ethernet cable if you have one. It might work fine for general communications from the computer to router to the internet but it can be a source of connections dropping on the Apple TV!
My relative is now a happy Apple TV user too.

Useful to watch what is happening to the TCP/UDP connections when the Apple TV is connected to iTunes and when it is actually playing some media from iTunes and when it stops playing.
To see this, use the Network Statistics command 'netstat' from a Command prompt (Windows PC) / Terminal Window (Mac):
e.g. for Windows:
c:\netstat -an 5
This repeats the netstat command every 5 seconds, use Ctrl-C to quit the command. (Use 'netstat -h' for help with this command)
While iTunes is running there will be a number of TCP records displayed for the computer's IP address using port 3689, showing at least 3 ports in use for the Apple TV's IP address.
i.e.
TCP host_ip:3689 apple_tv_ip:49187 ESTABLISHED
TCP host_ip:3689 apple_tv_ip:49196 ESTABLISHED
TCP host_ip:3689 apple_tv_ip:49255 ESTABLISHED
When it is playing content there are more connections established, some of these rows will gradually disappear when the media file stops playing. These addional TCP records show iTunes using different ports from 3689, but only while media files are being played.
When a video file is played, (on this Windows PC at least) the iTunes host is using ports 4463 and 4464, with the Apple TV using port 7000. When playing a music track or podcast, the iTunes host is using port 4472 or 4489 and the Apple TV is using port 5000.
When the media is playing, the fourth column returned by the 'netstat -an 5' command : 'State' shows as 'ESTABLISHED' and shortly after the media file is stopped playing it shows as 'TIME_WAIT' until the record disappears after a minute or so.

HT1695 I can't connect to my wifi network not even when it has no security on I get "unable to connect to network "netgear" anyone have this issue and maybe know how to fix it?

Hi
When I try to connect to my wifi network I receive message "Unable to join network "Netgear" this starated as of 8/16 before thsn I never had this problem
connecting to this network previously .I have attempted after manually entry of DNS still nothing a;so did the network reset, and full reset of settings and still
get nothing I even have my network unsecured at this very moment still nothing changed it does not show the network info ; no DNS address or anything any suggestions

- Reset the iPod. Nothing will be lost
Reset iPod touch: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Power off and then back on the router.
- Reset networks settings: Settings>General>Reset>Reset Network Settings
- iOS: Troubleshooting Wi-Fi networks and connections
- iOS: Recommended settings for Wi-Fi routers and access points

Lose Apple TV wireless connection with latest Apple TV update

I purchased a new IPhone yesterday and tried to set up the Apple Tv software to use the Iphone as a remote. This involved updating to the Latest Apple TV version 2.1. However once I carried out the update the Apple TV lost connection with the Wireless network and displayed an ip address 169.xxx.xxx.xxx . I manually set up the system to the 192.168.1.xxx subnet and the Apple TV showed up in the Router client table but I wasn't able to ping the Apple TV from the router and the Apple TV had no connection to the internet and would not appear in Itunes devices.
I reloaded itunes and reset the Macbook pro etc but no success. I then restored the Apple TV to factory settings and it reconnected on version 1.0 . I then tried a further software update on the Apple TV to 2.1 and once again I lost my connection to the Local wireless network. Same DHCP address 169. xxx etc.
Can anyone help me to either get the Apple TV to connect under 2.1 or tell me if it is possible to restore the Apple TV to the previous 2.0 software which at least gave me the lastest updates without the iphone remote facility.
Apple TV worked fine on Version 2.0
Really getting anger with the continual crashes and bugs on the software updates now.
Mac OS X (10.5.4) MacBookPRO
iTunes version 7.7.1 (11)
Apple TV (2.1)
Appreciate any assistance
regards
Alistair Old

Ok Guys here's what i found.
*1. Disconnected ethernet wired connection, soft reset apple tv.*
ATV Continued to work and kept ip address 192.168.1.10x
*2. Moved Apple Tv unit back to original location and did a power reset.*
ATV Continued to work and kept IP address 192.168.1.10x
Tried movie trailers etc. everything still functional could see in Itunes devices etc.
*3.Power reset router*
ATV Continued to work and still had correct IP address
*4. Powered down all network devices including the Router. then powered up router and brought up all devices individually , bring up the Apple Tv last*
Router DHCP client list showed Apple Tv with IP address 192.168.1.104
Apple Tv network setting showed DHCP ip address as 169.xxx.xxx.xxx
Apple TV could not see internet and I couldn't ping the apple TV from the router
*5. Plugged in the Ethernet cable to Apple Tv and Router*
Network setting on Apple tv instantly changed to ethernet and showed correct IP address 192.168.1.104 from DHCP on Router. Unit burst into life and connected to Internet.
*6. Disconnected ethernet cable from Apple TV.*
Network settings showed wireless network but no information on IP addresses etc just had N/A
Did a soft reset and all parameters appeared and they were now correct with IP address 192.168.1.104. apple tv once again started to work and showed up in Itunes.
7. Final config is Wireless and things seem to be working but it would appear that when I intially set up the apple tv under 2.1 I have to first connect via ethernet to get the apple TV to configure with the correct IP address on the Wireless network otherwise it auto configures with a 169.xxx.xxx.xxx IP address and doesn't appear to be connecting to the network.
Please let me know if anyone else sees the 169.xxx.xxx.xxx address when they initially connect to the wireless network with ATV version 2.1.
I would like to understand whether I have a unique problem or if others are seeing the same thing.
Hope this helps , at least I seem to be able to use 2.1 and the iphone remote facility now , even although I have to mess about with the network setting to start with.
Interested to see what anyone else comes up with
Cheers
Alistair

Apple tv not connecting to internet

I recently bought an apple tv 2 in the states (I leave in London), and was expecting the setup to be as easy as all my other devices (I have an apple tv which is 3 years old and works fine)
when I try to connect to my wifi network, the setup screen tells me I am connected to the network, but not to internet.
I do not think I am even connected to the network as I do not see my device in iTunes, and cannot enable home sharing.
I also do not see the new apple tv when I admin my router (a o2 wireless ii).
Googled the issue, and it seems I am not the only one in that situation, but I am yet to find a solution that works.
Any ideas??
thanks a lot.

Thanks a lot for the prompt response.
all my devices are following the pattern: 192.168.1.XX
my apple TV is of the form: 169.254.161.116
my network is on the protocol: 802.11b/g
and I have this setting turned on:" Allow multicast from Broadband Network"
Cheers.

How do I get my Macbook Pro to automatically select the location when connecting to the wireless network?

Each time when I want to connect to a different network I have to manually select the location and it's becoming very annoying. How do I get it to automatically select the location?

Check the following settings on your MacBook
Open System Preferences (gear icon on the dock)
Open Network
Click on AirPort on the left
Click Advanced at the lower right
If you have a "favorite" network, make sure it is first in the connection list. If it's not, drag it there
Make sure that there is a check mark next to "Remember networks this computer has joined"
No other boxes should be checked
Click OK, then click Apply

Domained laptop - slow logon when connected to non-domain network

Hi,
I'm looking for ideas on how to solve or workaround this issue, so any help would be appreciated. Please note that this doesn't appear to be the usual type of "slow login" problem - in fact I'm pretty certain the issue is caused by public DNS
servers which return placeholder IP addresses for unknown domains, rather than correctly reporting them as being unknown, which is making XP "hang up" looking for servers which don't really exist. Either way, it's causing a lot of problems for our remote
users.
The scenario is this. When domain-member laptops are not on the domain network, they can take anywhere between 5-30 minutes to login. This issue only occurs when the network they're connected to presents DNS servers which resolve unknown DNS
hosts/domains to "placeholder" sites. Whilst Windows 7 laptops do also seem to suffer from this, login delays on those are at worst a couple of minutes, whereas the Windows XP machines are affected for much longer.
Maybe a bit more info will make it clearer :)
The AD namespace shares the external domain, and there are public DNS records for the external domain, but obviously not for internal hosts (like DCs). So internally, the FQDNs of the domain controllers are "DC1.company.com", "DC2.company.com" etc.
When the laptop is connected to users home network, users can logon quickly (<30 seconds), as long as the DNS server offered by DHCP on that network doesn't return an IP for hosts/domains which don't exist publicly. If they do, login takes 5-30 minutes.
I've confirmed this by doing a lookup of the domain on the affected networks to ascertain which DNS servers return placeholder IPs rather than reporting that name resolution isn't possible. For example, OpenDNS's servers (208.67.222.222, 208.67.220.220)
return placeholders, Google's (8.8.8.8, 8.8.4.4) don't. Using OpenDNS to lookup "dc1.company.com" returns their placeholder IP of 67.215.65.132, using Google's returns "can't find dc1.company.com: Non-existent domain". OpenDNS is being used
as an example, increasingly ISP's seem to be using redirection, we're getting this issue with BT and Virgin Media networks, plus a couple of others.
So, if I manually set DNS on a laptop to use Google's servers, then connect it to one of the affected networks, login is virtually instantaneous. I remove the manually configured DNS servers and allow DHCP to present the ISP's own servers, login is
seriously delayed.
From this I can only assume that the fact that the names are resolving at all is causing the delay. I've removed possibly contributory factors from the equation, such as roaming profiles, redirected folders, mapped drives, group policy etc which the
workstation might be trying to access and causing a delay, as well as checking that fast logon optimization is active.
At the moment we're having to tell users to not connect to the network until after they've logged in, which you'd think wouldn't be that big a deal but you know what users are like :)
I appreciate this issue really seems due to bad practice by ISPs rather than with Windows itself, but we really need a fix we can apply ourselves. Reconfiguring users' home networks really isn't an option, there's too many of them, plus that wouldn't
solve the problem when they're using other networks (hotels etc). I don't think setting "good" DNS servers manually is an option, certainly I can't think of a way that would still work when they're connected to our internal LAN.
I'm thinking there must be some way we can set a timeout or something on the workstations so they don't spend so long trying to communicate with what they think are domain servers, but dispite much searching, I've been unable to find anything that works.
So, any help would be gratefully recieved.
Thanks

Thanks for the reply Martin, unfortunately it didn't help matters, but after pondering for a while (and eventually kicking myself for missing something so obvious) I did come up with a solution.
Basically, just set up public DNS A records for the internal servers and point them to 127.0.0.1 (setting up a wildcard DNS entry for the domain also pointing to 127.0.0.1 would do the same thing).
Sure enough logon now takes about 5 seconds, even on the Windows 7 machines (which were only taking a minute or so anyway).
Loopback is the best place to point these to, Pointing them to a public server didn't work, and pointing them at a non routeable private IP didn't work either.
To help anyone else confirming this is also the cause of their slow logon issue - when all three conditions are met it's time to mess with your public DNS!
The FQDN of the domain is public (company.co.uk) and not local (company.local).
The DNS servers in use on the network (or the ISP's DNS servers to which DNS requests are forwarded) return placeholder IPs for unknown host addresses, rather than a "non-existent domain or host" error. This can be confirmed by pinging (or doing an
nslookup) on the affected machine, for a host for which no public DNS record exists (ie ping wibble.microsoft.com) - if an IP address is returned then the DNS servers in use are resolving unknown hosts/domains to a placeholder IP.
If you allow the machine to login on the external network, then run a
ipconfig /displaydns you'll see entries for attempts to resolve internal servers themselves, plus lookups relating to the AD domain such as
_msdcs.gc._tcp._ldap.internaldomain.co.uk and such - these shouldn't be there off-domain, and I believe they indicate the machine thinks it's on the domain, even though it isn't.
Hope this helps someone else out.
Ray Von

Blank window when connecting to public wireless network

I'm having trouble connecting my Macbook Pro to the wireless network at my folks' nursing home. The MBP can see the private and public networks, but when I try to connect to the public network, a blank window pops up - no text or buttons. My nephew's Windows laptop connects with no problems. I'm running 10.7 (Lion). Any ideas?

A guess would be that your university uses a different encryption than your home wireless and that your driver has problems with that. If you search this bbs with your driver's name (and that encryption), you will also encounter a number of freeze problems when using newer kernels. However, those drivers and kernels move quick, so if you see an error in a post from 2 months ago, the error might have vanished already.
Second, you should find out the card you are using with
lspci -nn | grep Realtek

Mysteriously unable to connect to unprotected wifi network

I recently moved into a new apartment with a wifi network already in place, which I'm currently having trouble connecting to using my 2009 MacBook Pro 15" (OS X 10.6.8).
Everything worked fine for about a week and a half, but last weekend the connection gave out and I haven't been able to reconnect since. However, what's really baffling to me is that I can still connect with my phone, and my roommate can still connect with his phone and laptop as always. What's more, I've tried 3 or 4 other wireless networks at friends' apartments or at work and have been able to connect to all of them just fine.
The inconvenient part is that the network is shared with our upstairs neighbors, so I haven't really been able to troubleshoot the modem much other than asking them to restart it once, but I did take my laptop up into their apartment and still was unable to connect to the router, even while standing right over the modem.
My airport card is able to detect the network just fine (it shows as 3-4/5 bars), but when I try to connect it just times out. I should also mention that it's an open network, so there's no way it could be a password related issue.
So to summarize, this problem only affects my device, and only when I try to connect to my home network. Any Ideas?

Try the following:
Open System Preferences (gear icon on the dock)
Open Network
Click on AirPort
Click Advanced at the lower right
Locate the name of the open network and click on it it highlight it, then click the - (minus) button at the bottom of the list to delete it
Do the same for any other networks that you no longer need
Click OK, then click Apply
Close the window
Open Macintosh HD > Applications > Utilitites > KeyChain Access
Click on the Kind filter at the top of the area on the right of the window
Look for any listing with the name of the open wireless network
If you find it, click on it to highlight it, then click Delete on your Mac
Close the KeyChain Access windows
Restart your Mac
Try to log on on
What happens?

Latency when 5 apple TV is connected in a Single network

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