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Weird Problem - Only web not working from Internet Services

P

Polska

macrumors member
Original poster
Mar 9, 2008
55
0
Rio de Janeiro - RJ
Hey all,

I am having a very strange problem with my iMac. In my iMac with MacOS X 10.5.6, webpages are not loading. Here are some characteristics of my problems:

- I tried with different browsers : Firefox, Safari Beta, WebKit.
- Other services works: BitTorrent, Twitterrifc, Mail and Adium (IM) works
- I have other 2 macs (MBP and MB) and both works amazingly fine, no problems at all.
- I deleted the Ethernet connection from System Preferences and re-configured but after a while, the problem comes back
- I cannot access not even the router: 192.168.0.1
- I can access EVEN via iPhone using the WiFi
- Tried to unplug the Ethernet cable and use the WiFi netword but the same problem happens; no web access.

anybody ever had this problem?

Thanks for any help!
Erick Pessôa
 
My ifconfig

lostngone said:
If you type ifconfig in a terminal what does it show?
Click to expand...

Here is what my ifconfig says:

lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
inet 127.0.0.1 netmask 0xff000000
inet6 ::1 prefixlen 128
inet6 fd1c:bb74:1eea:a796:21f:f3ff:fed4:9d8f prefixlen 128
gif0: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
stf0: flags=0<> mtu 1280
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet6 fe80::21f:f3ff:fed4:9d8f%en0 prefixlen 64 scopeid 0x4
inet 192.168.0.199 netmask 0xffffff00 broadcast 192.168.0.255
ether 00:1f:f3:d4:9d:8f
media: autoselect (100baseTX <full-duplex,flow-control>) status: active
supported media: autoselect 10baseT/UTP <half-duplex> 10baseT/UTP <full-duplex> 10baseT/UTP <full-duplex,hw-loopback> 10baseT/UTP <full-duplex,flow-control> 100baseTX <half-duplex> 100baseTX <full-duplex> 100baseTX <full-duplex,hw-loopback> 100baseTX <full-duplex,flow-control> 1000baseT <full-duplex> 1000baseT <full-duplex,hw-loopback> 1000baseT <full-duplex,flow-control> none
en1: flags=8823<UP,BROADCAST,SMART,SIMPLEX,MULTICAST> mtu 1500
ether 00:1f:5b:d0:5b:db
media: autoselect (<unknown type>) status: inactive
supported media: autoselect
fw0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 4078
lladdr 00:1f:f3:ff:fe:86:d5:36
media: autoselect <full-duplex> status: inactive
supported media: autoselect <full-duplex>
vmnet8: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet 192.168.111.1 netmask 0xffffff00 broadcast 192.168.111.255
ether 00:50:56:c0:00:08
vmnet1: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet 192.168.217.1 netmask 0xffffff00 broadcast 192.168.217.255
ether 00:50:56:c0:00:01
en3: flags=8822<BROADCAST,SMART,SIMPLEX,MULTICAST> mtu 1500
ether 00:1c:42:00:00:01
media: <unknown type>
supported media: autoselect
en2: flags=8822<BROADCAST,SMART,SIMPLEX,MULTICAST> mtu 1500
ether 00:1c:42:00:00:00
media: <unknown type>
supported media: autoselect
en4: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
ether 00:1f:f3:ad:9e:05
media: autoselect status: inactive
supported media: none autoselect 10baseT/UTP <half-duplex>
--------

This is Chinese to me so if you can help me, I would appreciate very much. :)

Erick Pessôa
 
update of my problem

Following some tips and instincts I did the following tests:

- I used to have an fixed IP address in my router for my iMac. I changed to a dynamic one and the problem persists.
- Through Terminal, PING works fine but if you do a TELNET through port 80, does not go through.
- The problem is not in the router because I have 3 other computers, iPod touch and iPhone going through port 80 with no problem.
- I did not configure any proxy or firewall (at least that I am not aware of).

I could say that the problem is something blocking my port 80 in my iMac but I don't see where this could be happening. I already deleted and reconfigured my Ethernet connection and nothing changed.

any light on this matter would be more than welcomed.

Thanks!
Erick Pessôa
 
Try creating another account on that machine and check from that - this will allow you to narrow it to the machine vs account settings.

Have you checked the log files (console.app) for anything that looks odd such as error messages when the web browsing fails?
 
BobZune said:
Try creating another account on that machine and check from that - this will allow you to narrow it to the machine vs account settings.

Have you checked the log files (console.app) for anything that looks odd such as error messages when the web browsing fails?
Click to expand...

I tried with the other two accounts that I have in the machine and still the same problem.

At Console the only error message that is related to this problem is that Skype cannot check for updates and also Sync cannot work.
 
A. In your original post, you said "- I deleted the Ethernet connection from System Preferences and re-configured but after a while, the problem comes back" - does it work for a while and then the problem returns? How long is "a while" if you can quantify it?

B. Can you ping any site, or just the router?

C. Are you running a web-server on that machine by any chance?

The symptoms look like a machine-wide proxy blocking just web browsing. So check for proxies one more time - under SysPrefs -- Network - (ethernet) - Advanced. Some people reported Safari Beta install turned on a proxy.
 
Problem Solved!

After days trying everything, a suggestion here from a gentle soul(Thanks BobZune!) gave me the idea of turning off my Webserver (MAMP) and it worked. Still, I'm a bit of intrigued what triggered the problem since I have this webserver installed for almost a year without any problems.

Thanks for all the help!
Erick Pessôa
 
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