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Steve Thackery
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 Posted: Thu Jul 24, 2008 2:41 pm Post subject: Weird once only internet connection |
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I'm trying to help out a friend who has two Macs on a network connected via ADSL to the internet. I should warn you in advance that I'm not a Mac user!).
They've got a really weird problem on one of their machines (a G5 running Tiger 10.4.11). It refuses to display certain web pages, and refuses to download their emails.
They have a domain hosted by me2uweb.com, and use the SMTP and POP servers on their domain for their emails. For some reason, their Mail program simply won't connect to their me2uweb email servers. Interestingly, they also have an email account with BT Internet, and it will get and send emails on that account just fine.
I obviously thought there was something wrong with the account settings in Mail, but they are perfectly correct.
I then discovered that Safari won't display any web pages that are hosted by me2uweb! However, Safari will happily display pages anywhere else on the Web.
I immediately thought that me2uweb.com were blocking their IP address for some reason, but they assure me they are not. In any case, my friends' other Mac, which sits on the very same network behind the very same ADSL router, works perfectly! It will send and receive emails from their me2uweb email servers, it will display web pages from me2uweb-hosted domains as well as everywhere else.
I believe that their router provides their IP address, so if it were blocked by me2uweb it should block both machines.
In summary, one of the Macs on their network refuses to play ball with anything hosted by me2uweb (web pages or email servers), but works fine in all other respects. The other Mac on their network works perfectly, including with me2uweb.
I am completely stumped. Could anyone make any suggestions? Is this a known problem? I'm afraid I'm totally in the dark when it comes to Macs!
Many thanks in anticipation,
SteveT |
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Gene E. Bloch
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| Posted: Thu Jul 24, 2008 2:56 pm Post subject: Re: Weird once only internet connection |
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On 7/24/2008, Steve Thackery posted this:
| Quote: |
I'm trying to help out a friend who has two Macs on a network connected via ADSL to the internet. I should warn you in advance that I'm not a Mac user!).
They've got a really weird problem on one of their machines (a G5 running Tiger 10.4.11). It refuses to display certain web pages, and refuses to download their emails.
They have a domain hosted by me2uweb.com, and use the SMTP and POP servers on their domain for their emails. For some reason, their Mail program simply won't connect to their me2uweb email servers. Interestingly, they also have an email account with BT Internet, and it will get and send emails on that account just fine.
I obviously thought there was something wrong with the account settings in Mail, but they are perfectly correct.
I then discovered that Safari won't display any web pages that are hosted by me2uweb! However, Safari will happily display pages anywhere else on the Web.
I immediately thought that me2uweb.com were blocking their IP address for some reason, but they assure me they are not. In any case, my friends' other Mac, which sits on the very same network behind the very same ADSL router, works perfectly! It will send and receive emails from their me2uweb email servers, it will display web pages from me2uweb-hosted domains as well as everywhere else.
I believe that their router provides their IP address, so if it were blocked by me2uweb it should block both machines.
In summary, one of the Macs on their network refuses to play ball with anything hosted by me2uweb (web pages or email servers), but works fine in all other respects. The other Mac on their network works perfectly, including with me2uweb.
I am completely stumped. Could anyone make any suggestions? Is this a known problem? I'm afraid I'm totally in the dark when it comes to Macs!
Many thanks in anticipation,
SteveT |
It's a mystery to me as well, but if it were my machine, I'd try these:
1. Look for firewall settings (if the Mac firewall is enabled)
2. D/L, install, and try another browser, e.g. Firefox or Opera
3. Under Preferences, check security and proxy settings |
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Steve Thackery
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| Posted: Thu Jul 24, 2008 5:37 pm Post subject: Re: Weird once only internet connection |
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Thanks for these suggestions. I'll drive over to their place this weekend and try those four steps.
Incidentally, the reason for the slightly odd "once only" wording of the title is that they claim that if they reboot the suspect Mac, they can download their emails once, but not subsequently until they reboot.
This suggests something funny with Mail, but (and I've seen this with my own eyes) Safari is blocked as well.
I'm not convinced they are reporting this bit correctly, although I can definitely confirm that the symptoms described in my original email are as described.
Finally, how do I get to the firewall in the Mac?
Thanks again,
SteveT |
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Gene E. Bloch
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| Posted: Thu Jul 24, 2008 7:21 pm Post subject: Re: Weird once only internet connection |
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On 7/24/2008, Steve Thackery posted this:
| Quote: |
Thanks for these suggestions. I'll drive over to their place this weekend and try those four steps.
Incidentally, the reason for the slightly odd "once only" wording of the title is that they claim that if they reboot the suspect Mac, they can download their emails once, but not subsequently until they reboot.
This suggests something funny with Mail, but (and I've seen this with my own eyes) Safari is blocked as well.
I'm not convinced they are reporting this bit correctly, although I can definitely confirm that the symptoms described in my original email are as described.
Finally, how do I get to the firewall in the Mac?
Thanks again,
SteveT |
I did it so long ago that I didn't remember, but it only took a minute or two (and a false start or two, I must admit!) to find this:
System Preferences > (Internet & Network) Sharing > Firewall
This is on my Intel iMac running OS X 10.4. |
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Bruce in alaska
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| Posted: Fri Jul 25, 2008 4:32 pm Post subject: Re: Weird once only internet connection |
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In article <nZadnSmeirlGURXVnZ2dnUVZ8u-dnZ2d@bt.com>, "Steve Thackery" <nobody@nowhere.com> wrote:
| Quote: |
I'm trying to help out a friend who has two Macs on a network connected via ADSL to the internet. I should warn you in advance that I'm not a Mac user!).
snipped for brevity
In summary, one of the Macs on their network refuses to play ball with anything hosted by me2uweb (web pages or email servers), but works fine in all other respects. The other Mac on their network works perfectly, including with me2uweb.
I am completely stumped. Could anyone make any suggestions? Is this a known problem? I'm afraid I'm totally in the dark when it comes to Macs!
Many thanks in anticipation,
SteveT |
If it were "MY" Mac, I would go to Locations under the Apple, and set up a NEW Location from SCRATCH, in the Network Configuration Screen, for the operating Location, There are a lot of times where the IP Stack and pList with this information can get corrupted, and the only way to get things back on track, is to Start over with a New Location, from scratch. Saved me a lot of headaches over the years. |
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Chris Ridd
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| Posted: Sat Jul 26, 2008 7:51 am Post subject: Re: Weird once only internet connection |
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On 2008-07-26 12:28:35 +0100, Shawn Hirn <srhi@comcast.net> said:
| Quote: |
In article <nZadnSmeirlGURXVnZ2dnUVZ8u-dnZ2d@bt.com>, "Steve Thackery" <nobody@nowhere.com> wrote:
| Quote: |
I'm trying to help out a friend who has two Macs on a network connected via ADSL to the internet. I should warn you in advance that I'm not a Mac user!).
They've got a really weird problem on one of their machines (a G5 running Tiger 10.4.11). It refuses to display certain web pages, and refuses to download their emails.
They have a domain hosted by me2uweb.com, and use the SMTP and POP servers on their domain for their emails. For some reason, their Mail program simply won't connect to their me2uweb email servers. Interestingly, they also have an email account with BT Internet, and it will get and send emails on that account just fine.
I obviously thought there was something wrong with the account settings in Mail, but they are perfectly correct.
I then discovered that Safari won't display any web pages that are hosted by me2uweb! However, Safari will happily display pages anywhere else on the Web.
I immediately thought that me2uweb.com were blocking their IP address for some reason, but they assure me they are not. In any case, my friends' other Mac, which sits on the very same network behind the very same ADSL router, works perfectly! It will send and receive emails from their me2uweb email servers, it will display web pages from me2uweb-hosted domains as well as everywhere else.
I believe that their router provides their IP address, so if it were blocked by me2uweb it should block both machines.
In summary, one of the Macs on their network refuses to play ball with anything hosted by me2uweb (web pages or email servers), but works fine in all other respects. The other Mac on their network works perfectly, including with me2uweb.
I am completely stumped. Could anyone make any suggestions? Is this a known problem? I'm afraid I'm totally in the dark when it comes to Macs! |
For starters, compare all the network settings on both Macs. The network settings are accessible via "system preferences" which is available under the pull down Apple menu. |
Could the problem be name resolution? Check the /etc/hosts file on the misbehaving machine to see if someone's (misguidedly) hardwired some bogus IP addresses for their ISP in it.
Cheers,
Chris |
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Steve Thackery
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| Posted: Sat Jul 26, 2008 3:07 pm Post subject: Re: Weird once only internet connection |
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| Quote: |
| For starters, compare all the network settings on both Macs. The network settings are accessible via "system preferences" which is available under the pull down Apple menu. |
Thanks for that. I've done just what you say, and can confirm that both Macs have identical settings in that area.
SteveT |
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Steve Thackery
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| Posted: Sat Jul 26, 2008 3:09 pm Post subject: Re: Weird once only internet connection |
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| Quote: |
| Could the problem be name resolution? Check the /etc/hosts file on the misbehaving machine to see if someone's (misguidedly) hardwired some bogus IP addresses for their ISP in it. |
That's an interesting new lead. I've thought all along it's something to do with name resolution, but I have no idea how that is handled in Macs.
I'll go over to their place tomorrow and see what it looks like.
Many thanks,
SteveT |
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Steve Thackery
Guest
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| Posted: Sat Jul 26, 2008 3:10 pm Post subject: Re: Weird once only internet connection |
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| Quote: |
| Incidentally, the reason for the slightly odd "once only" wording of the title is that they claim that if they reboot the suspect Mac, they can download their emails once, but not subsequently until they reboot. |
No, they were reporting it wrongly, as I suspect. They were receiving emails from a completely different email account, which works fine, and was fooling them.
So, forget about the "works once after a reboot" part of it.
Sorry to confuse you!
SteveT |
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Steve Thackery
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| Posted: Mon Aug 04, 2008 6:18 pm Post subject: Re: Weird once only internet connection - given up |
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Colleagues,
Thank you all for your help with this problem. I tried all your suggestions, including checking the 'hosts' file and creating a completely new Location.
Nothing has worked. It is just so completely weird.
Anyway, the owner is going to call out a proper Apple technician to sort it out. If the owner is able to follow what the technician does I'll report back, just for the record in case somebody else suffers this problem.
Meanwhile, thank you again for trying to help. Really appreciate it.
SteveT |
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