FileSharing Transfer Speed Drops after sharing internet connection

Hi Folks
Sometimes, when I copy files via FileSharing,
the speed drops exactly to the max. upload speed my internet connection has.
= instead of 12 MB/s I got 600 ~700 KB/s.
I needed a bit of work to see this connection.
But after a while, it changes back to normal.
However, I did share the ethernet-internet-connection from one machine via WiFi (to surf with an iPod Touch).
Could that initiate this problem? I believe so.
Internet-Provider is cablecom, switzerland, zurich.
I use a Zyxel Ethernet Switch to connect two macs with the cablecom-modem (and together).
So Idetached the cablecom-modem from the ZyXel Switch and restarted both machines.
Now, the copy-action via filesharing has the expected full speed. (Just no internet, of course).
After that I connected the Cablecom-Modem again,
restarted (PowerOff/On) the ZyXel Switch,
and tried the same again:
Now the speed is slow.
It seems that I really should NOT share the Ethernet Internet Connection with WiFi
Won't do that anymore because I often copy files from one machine to the other and this slow transfer speed kills me.
Why is that affecting the connection between two local machines?
How can I reset this to "normal".
I hope there is a way to do it in OS X instead of waiting until it sets itself to "normal" from cablecom's side.
[ -Despite the fact that I should use a wireless router- ]
Is there any chance that this is an issue that OS X could resolve?
Best would probably be: the local connection between two machines should not be affected by the provider in any circumstances.
BTW: The cablecom-modem gives - via a ZyXel Switch - both computers unique IP's and they are reachable/visible from the internet.
Greetings from Zurich
Alain Burki
If my English is bad
please forgive me

I am doing the same thing (have tried it occasionally over the past 6 months or so and cannot install Arch because of it)...sad panda. The downloads start fast (up to 5MB/s), then when it gets to 49% it slows all the way down until it gives up and moves to the next mirror, repeating and repeating and repeating until finally it shows:
core is up to date
error: failed to update extra (download library error)
error: failed to update community (download library error)
:: There are 51 members in group base
:: Repository core
Enter a selection (default=all): error: failed to prepare transaction (could not find database)
I've tried commenting out the XferCommand and using wget but that fails even worse.
Thank you for posting this, I am glad I am not the only one experienceing this. I was about to give up searching and post too.

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Connecting to shared internet connection through Mac osx 10.7 wifi

I can't get my new HP touch pad to connect to my wireless network. I connect my iMac through ethernet but have a wifi network setup from my iMac so my other devices can use my iMacs shared internet connection. The touchpad will not connect, it finds the network, I put in the WEP key and it states "unable to connect, try again". I am at the setup stage on the touch pad and can't get any further!!. I have tried everything I can think of including creating a new wireless network, disabling and changing the sharing password and re-enabling. all my other devices still log on fine and can connect to the internet through the iMacs connection. anyone got any ideas?
Post relates to: HP TouchPad (WiFi)

alopix wrote:
I just remembered why I ignored your first post when reading this topic:
Ad-hoc-sharing can't be the problem, because when I use the exact same method without any WEP encryption, so create an open network, it works perfectly - so it has to be an error in the webOS' handling of WEP or similar...
I'm curious that the Mac offers only ASCII (key length of 5 characters) or 128 bit encryption, but not 64bit (which has a key length of 10 hexadecimal characters and works perfectly with my touchpad). <Wiki definition of WEP.>
This sounds like an old problem we used to have when Palm came out with WiFi-enabled devices. Users would create an ASCII text password in their router, and it would generate a 10 character hexadecimal string that was the true password. Entering the 5-digit ASCII code would fail since it was a seed, and not the "real" code.. Entering the 10-digit key worked every time.
By any chance is this what is occurring on the Mac? Do you see a 10 digit code generated anywhere in the setup routine?
Was the link I provided to you of any help?
WyreNut
I am a Volunteer here, not employed by HP.
You too can become an HP Expert! Details HERE!
If my post has helped you, click the Kudos Thumbs up!
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Sharing internet connection - HOW?

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Are you using WEP?
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Hello,
I just got my Vonage adaptor and I am trying to share the Internet connection from my Macbook Pro (10.7.3) to the Adaptor to use the Vonage service bc my router is downstairs.
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Firefox has been causing drops in my internet connection lately. PLEASE, PLEASE, PLEASE HELP!

OK, I recently wrote to the author of Session Manager about this problem, since I thought I'd narrowed it down to that, but, well, maybe not. I'll copy & paste that conversation here, rather than waste a lot of time writing up something from scratch, especially since I've already wasted an INCREDIBLE amount of time on this problem, and I'm about ready to go berserk...
Hello. I've been using Session Manager for a long time, but lately, it's been causing a problem that's been driving me out of my skull, and I think I've finally pinned it down to SM. lately, when I've tried to load sessions, even with a small number of tabs, it's caused my internet connection to drop, or, at least, to slow down to the point where pages try to load, but finally come back with a message that the connection timed out, or the page had took too long to respond. I have my Windows Vista Home Premium computer running Firefox 11 connected via Ethernet to a wifi router that is connected to a cable modem. I tried disabling pre-fetching, resetting my router to factory settings, I tried a different router, I tried removing the router and connecting directly to the cable modem, i tried a different modem, I tried disabling the Symantec extension, I tried clearing windows' DNS cache, I tried disabling Firefox's DNS cache, I tried disabling Symantec's Firefox extension (I have Norton anti-virus), and I tried disabling my anti-virus & firewall programs (hmmm, did I leave anything out?), but none of that solved the problem. I haven't noticed this behavior with any other program, and Firefox goes along swimmingly otherwise. The reason why I think I've finally pinpointed it as SM is that trying to load a certain 9-tab session caused this problem multiple times, but I eventually got it all loaded correctly, and then I tried restarting it, and Firefox's own built-in feature of loading the tabs and windows if it closed properly the last time worked just fine, and it loaded quite quickly.
So, why might this be happening, and what can I do about it? Do you think it might be a matter of the SM data being corrupted/ If so, how do I get rid of it? I found the Session Manager Export Tool extension and exported my sessions and then tried uninstalling and re-installing SM, but it hadn't gotten rid of the old SM data. Please help, as I consider SM to be a vital part of my Firefox and have come to rely on it, plus I'd like to be able to use my old saved sessions again. Please help ASAP, too, as I've already wasted an unbelievable amount of time on this and I am extremely frustrated and aggravated. Thank you.
The response I received:
"Session Managwr cannot cause your Internet connection to drop, it simply doesn't have the ability to do that. All it can do is cause Firefox to restore tabs that have been saved. It can cause lots of web pages to load, which could slow down Firefox or possibly your Internet connection (if you have a really slow connection), but it can't drop your Internet connection. The only exception to that that I can think of is if your modem has a web page with a reboot button and you press that, then save the session such that restoring the session causes the reboot button to press, but that is extremely unlikely.
By default Firefox loads tabs one at a time anyway so it's unlikely to slow things down when loading sessions. If Firefox can restore sessions properly, the Session Manager should be able to do so as well, since Session Manager uses Firefox's restore capabilities.
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Well, I have a cable internet connection, so I don't think speed is the problem there.
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Hi,
You can try to verify that '''Don't load tabs until selected''' is enabled in '''Tools''' ('''Alt''' + '''T''') > '''Options''' > '''General'''. [https://support.mozilla.org/en-US/kb/Options%20window%20-%20General%20panel?as=u Options > General]
[https://support.mozilla.org/en-US/kb/Options%20window Options]
If the problem persists please also check in a [https://support.mozilla.org/en-US/kb/Managing-profiles new profile]. If the new profile is okay, you can later [https://support.mozilla.org/en-US/kb/Recovering%20important%20data%20from%20an%20old%20profile?s=profile&r=1&e=sph&as=s copy the needed personal data] from the old profile and start using the new profile. You can then delete or troubleshoot the old profile. Firefox stores your personal data and settings in [http://kb.mozillazine.org/Profile_folder another location (profile folder)] separate from its [http://kb.mozillazine.org/Installation_directory folders/files]. A new profile would have the default Firefox settings in '''Tools''' ('''Alt''' + '''T''') > [https://support.mozilla.org/en-US/kb/Options%20window Options] and [http://kb.mozillazine.org/About:config about:config], and usually would also be empty of '''Extensions''' and themes ('''Appearance''') in '''Tools''' > '''Add-ons''', and their settings. Also, a new profile would have no previous stored website cache/cookies/data/preferences: '''Tools''' > [https://support.mozilla.org/en-US/kb/Clear%20Recent%20History '''Clear Recent History'''].
[https://support.mozilla.org/en-US/kb/Profiles?s=profile&r=2&e=sph&as=s Profiles Howto]
[http://kb.mozillazine.org/Profile_folder_-_Firefox Profile Folder & Files]
[http://kb.mozillazine.org/About:config_entries about:config Entries]

Why does my iPhone not show up in iTunes on a mac that has a shared internet connection from another mac?

I have what I would consider a difficult question. I called Apple Care and after she spoke to a senior advisor,the representative ended up saying it wasn't possible.
Having said that, I'm sure this is not a difficult question for people with networking expertise.
Setup
So...I have a MacBook receiving a WiFi signal via AirPort.
In System Preferences, I have turned on Internet sharing (share airport over Ethernet).
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Goal
However, in iTunes on my G4 I would like to use iTunes DJ.
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I have successfully done both of these things with computers connected directly to my modem, as well as with computers connected via WiFi.
The problem is connecting devices to computers that get their internet connection though another computer via internet sharing.
Question
So my question is about Internet sharing itself. Is it not a fully featured ad-hoc network? Does it only provide browsing capabilities and the ability to browse networked computers, but NOT devices such as an iPhone? I don't see the difference; my iPhone is on the same network as the computers, so why is there no communication between it and computers that gain their Internet connection through another computer?
I really hope someone out there who is an expert in networking can help me out with this. Or if it truly is impossible, if someone could explain to me why that is the case, I would also appreciate it.
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Phone not recognised in itunes
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Airport network and sharing Internet connection

Hello all,
I have hit this problem with sharing an internet connection on an airport network. Maybe its a simple fix, maybe it a "can not be done", answer.
My set up may be a little hard to describe. To explain, completely wireless set up in my network, 1 x imac and 1 x powerbook, all on airport and using an airport express. This includes my new printer. All connected through airport express network, call it network A.
Up till now i had a modem with an ether net cable plugged into the airport express. All was fine.
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thanks for the interest.
joe

Selamat Phil Smith,
Actually do we know each other, cause i know a phil smith.
Actually an ether net cable is OK for the short term. But if i get another computer it may get complex. Spent a lot removing cables too.... Looks like i will have to buy the special modem router... Painful $600.
This share internet thing over airport looks like a great idea till you realise it disables access to the ariport network for the computer doing the sharing.
Cheers and thanks for the idea
joe

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The iMac's sharing is via AirPort and it has a WEP password. I use my MacBook Pro's AirPort card to connect to the iMac's connection. Unfortunately, after about 20-30 minutes of using the wireless on the MBP, the safari web browser claims that I am not connected to the Internet and the AirPort card gets a "self-assigned" IP address. The solution is to restart the MBP.
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My problem is similar. I'm trying to do internet share from iMac G5 (w/ iSight) to MacBook Pro, both running 10.5.1. The iMac is connected to dsl/router via ethernet, and I'm trying to internet share to MBP via airport. I cannot establish connection, even though airport shows full strength signal. I checked password over and over and over, and that seems fine. But Network preference panel shows airport to have self-assigned IP.
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Firewall blocks some services when sharing internet connection

Hello,
I have some issues regarding internet sharing that I hope someone could successfully troubleshoot :
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http://docs.info.apple.com/article.html?artnum=107594
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Sharing panel/Internet : Internet sharing is ON. "Share your connection from" is set to Airport. "To computers using" : Airport checkbox checked. I tried the Firewall option instead as well.
Appleshare is ON and automatically configured (zero configuration in the Firewall) on both macs.
Ports for iChat, MSN and Gmail on the iMac side are open. iMac has no problem to connect to these services directly.
On the PB side turning the Firewall on or off resulted the same.
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Elad
Original PowerBook "17/iMac G5 2.0 "20 Mac OS X (10.4.7)

In the Sharing pane of System Preferences, click the Advanced button under the Firewall tab, enable firewall logging, and then try using those services on the other computer. When done, check the firewall log and look for the number after the : in the logged entries; this is a port number. Knowing the IP address of the other machine will help determine which entries were produced by it as opposed to ones which came from the Internet; this is visible in the Network pane of System Preferences.
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Sharing internet connection with Windows via Airport

Happy New Year, all!
I have an iMac Intel Core Duo connected to an ADSL modem via ethernet. I'd like to share my internet connection via Airport with a Windows laptop (which is running XP with SP2). I've read that this is possible and I've tried setting it up but the laptop isn't seeing the Airport network at all.
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Trying to share an AirPort connection on iMac 1 over ethernet to iMac 2.
iMac 1 is a 400 MHz iMac G3 running OS 10.2.8. It has AirPort and I set the Sharing-Internet pane to share its AirPort connection over Ethernet. The Firewall is off.
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Now, I also tried a direct connection from #2 to my router in another room (conventional ethernet cable) and #2 had no problem getting online.
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Is there a cache file or plist file somewhere I need to trash? Too bad there is no way to manually "reboot" TCP/IP. I did try the Internet Setup Assistant, and it told me I would have to enter a manual address. I don't get it -- it's fine with a direct connection, but not through a shared connection....

Solved!
I forgot about permissions and disk repair in Disk Utility. After doing this, the tethering is working again.

Sharing internet connection with another mac

I have a 2.33 GHz Intel Core Duo iMac with 2 GB memory running Leopard 10.5.1 and connect to the internet through a cable modem into my ethernet port. I have internet sharing and Airport on. My daughter has an iMac G4 running 10.3.9 and gets her internet connection through my computer through an Airport connection. This was working well until I upgraded to Leopard and now she is unable to connect. Either my computer does not show up on her list of available networks or it will show up only briefly. When it does show and she tries to connect, she gets an error message stating there is a problem connecting. Never happened before he Leopard upgrade. Any ideas?

Thanks again both...
I think I have done exactly as you suggest. The USB modem is in the MBA USB port and connects to the mobile signal giving a good, fast connection - allowing my MBA to use safari and mail very well and with good download speeds. I go in to system preferences, internet and network, sharing and internet sharing in the "share connection from" I choose ZTEUSBModem. In the "to computers using" I tick Airport. In airport options I've tried 40 and 128 bit WEP. The ipad sees a wireless network and connects using the password I set in the internet sharing, airport options section. However, if you try to look at a web page, it just sits there for a bit but doesn't work. I tried my Iphone 4 last night and got the same result. Both work fine with my usual home wifi network, just can't get them to play nice with this USB mobile broadband modem....
Thanks again for trying to help..

How do I use Mail on a shared internet connection

Hello All;
I've tried searching the forums, and either I'm using the wrong search terms, or this question is so basic no one else is having problems....
My wife and will sometimes be in a hotel that has an ethernet cable for internet access. We both travel with our laptops (sad life, I know...) and use the internet. We usually plug the cable into her MBP and then I set up internet sharing to my iBook. Which works fine, except that Mail can't make a connection and I have to check my email accounts by going to the browser interface for each. I have several, which is why I set Mail up to work with them. Not a big problem, but annoying. Finally, sitting here in Ottawa I decided to do something about it since I'm waiting for it to warm up a bit - its something like -20C this morning.
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Brrrrr - its cold out there.....

Hello Seth.
I believe you must go to System Preferences > Sharing > Firewall on the computer that shares its Internet connection and enable the ports that Mail needs, i.e. click on the New button, choose Other from the Port Name popup menu to name that setting however you wish, and specify the port number(s) there.
Also, 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 on each computer.
You may also find the following articles useful:
TCP/IP: Ports And Firewalls Explained
"Well Known" TCP and UDP Ports Used By Apple Software Products

FileSharing Transfer Speed Drops after sharing internet connection

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