I have a very strange problem, so strange I don't even know which sub-forum to post it to.
Last week, my cable modem broke, so I took it back and got a new one.
The new one doesn't work with my old router so, for now, I have to connect the modem directly to my Mac with an ethernet cable.
Everything works fine, except that I cannot access unix.com in Safari or in Firefox. every other website is fine!
If, however I use Firefox on Linux in a VM I can get to the site.
I've cleared the cache, cookies and everything else I can think of.
I simply replaced the old modem with the new one, and changed nothing - and every other website works fine.
Could anyone possibly have a clue? I'm confused, and it's driving me up the wall.
Thanks.
(I would upload graphics, but Grab only saves TIFF's and they're not supported as attachment types.
Safari:
Safari can�t open the page.
Safari can�t open the page �http://www.unix.com/� because the server where this page is located isn�t responding.
Firefox:
The connection has timed out
The server at www.unix.com is taking too long to respond.
* The site could be temporarily unavailable or too busy. Try again in a few
moments.
* If you are unable to load any pages, check your computer's network
connection.
* If your computer or network is protected by a firewall or proxy, make sure
that Firefox is permitted to access the Web.
Have you resolved your issue yet? Is it related to DNS? DNS is the only protocol / service that can be related to your issue in my humble opinion. Please let use know what you come up with.
Given that I have no idea what I'm doing, I did this:
rebooted
made a cup of tea
flushed the routing table
flushed the disk cache
manually stopped and started en0
made another cup of tea
rebooted a few more times
looked at the syslog
What exactly should I do, or be looking for, with DNS (remembering that it's only UNIX.com that I can't access)?
Thanks.
PS: I had a mad theory that I accessed UNIX.com so often with my old modem, that the route has burned itself into the ethernet card on my Mac This probably goes to show that I know nothing about hardware, or networks!
"Modem" has a very specific meaning in a PC context, a device to dial into another PC or network over telephone service. I'm not sure what you're calling your modem here, but I'm pretty sure it's not actually a modem if you're using an ethernet card!
It's a cable modem. It plugs into the cable outlet on my wall and gives me telephone and internet service. I used to plug a router into it and everything was just dandy. But the new (cable) modem doesn't work with the router, so for now I use an ethernet cable to connect the (cable) modem directly to the ethernet port on my computer.
If you can't ping or traceroute to this site, but can get to the rest of the world, and since DNS is obviously working, seems the problem might be in your Mac somewhere. I have had problems on my Mac from time to time that required a reboot and it still did not clear until some unknown TTL passed (still have not got a handle on it).
Still, you should either ping and record the route or use traceroute and determine the last IP address you can hop to and then look into that device for the problem. Please post back what device is the last device there the datagram resides.
$ traceroute unix.com
traceroute to unix.com (81.17.242.186), 64 hops max, 52 byte packets
1 * * *
2 217-168-56-77.static.cablecom.ch (217.168.56.77) 10.163 ms 7.398 ms 7.705 ms
3 172.31.208.69 (172.31.208.69) 14.959 ms 14.678 ms 31.482 ms
4 ch-zrh01a-si1.aorta.net (213.46.171.18) 14.610 ms 14.771 ms 25.087 ms
5 gi9-47.ccr01.gva01.atlas.cogentco.com (130.117.14.93) 16.784 ms 18.636 ms 15.084 ms
6 te1-4.ccr01.lys01.atlas.cogentco.com (130.117.48.213) 20.597 ms 19.923 ms 21.178 ms
7 te0-1-0-3.mpd21.par01.atlas.cogentco.com (130.117.2.185) 40.557 ms 39.609 ms 37.704 ms
8 te8-7.mpd02.lon01.atlas.cogentco.com (130.117.3.6) 40.867 ms 40.249 ms
te0-0-0-7.ccr21.par01.atlas.cogentco.com (130.117.3.241) 37.173 ms
9 te9-7.ccr01.lon01.atlas.cogentco.com (130.117.51.29) 46.326 ms
te3-8.ccr01.lon01.atlas.cogentco.com (130.117.1.133) 40.442 ms 40.311 ms
10 te1-2.ccr01.dub01.atlas.cogentco.com (130.117.0.130) 50.647 ms 48.946 ms 50.315 ms
11 * * *
12 * * *
13 * * *
14 * * *
....
....
I've finally had time to got a new router and everything is working perfectly fine with that.
However, if I switch AirPort off and connect directly to the cable modem via ethernet, it still doesn't work.
It's obviously a problem with my Mac somewhere, but it's working with the new router, so I'm happy again