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Mobile Broadband - messes with network?
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paulzolo
What's a life?
Joined: Thu Apr 23, 2009 6:27 pm
Posts: 12251
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I have a T-Mobile mobile broadband USB dongle, and it’s working pretty well. However, I think it’s mashed my machine’s networking. I can connect to the internet, but if I try to connect to any of the locally hosted sites, I get nothing - just a forever loading spinner. Before the mobile dongle, I could access sites hosted on the local system quite happily, but now I’ve installed this dongle and it’s software, this is broken. So: http://haddock.local - fails - loading spinner in Safari, Firefox similar http://localhost - fails - Safari & Firefox say that they can not connect to localhost IP address - fails 127.0.0.1 - fails as well - which is what makes me think the USB dongle software has broken something. Anyone had anything similar? Is there a fix?
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| Sat Aug 01, 2009 2:45 pm |
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Nick
Spends far too much time on here
Joined: Thu Apr 23, 2009 11:36 pm
Posts: 3527
Location: Portsmouth
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What does your hosts file look like?
/private/etc/hosts
Is the location, you should see a number of entries in there. In particular, one for the loopback.
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| Sat Aug 01, 2009 5:27 pm |
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JJW009
I haven't seen my friends in so long
Joined: Thu Apr 23, 2009 6:58 pm
Posts: 8767
Location: behind the sofa
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 When you have multiple network connections, your routing table is important in determining which physical interface is used for which IP address. I expect the dongle installation isn't designed with a local connection in mind, and simply routes everything to the Internet as the default gateway. After all, you wouldn't normally use one if you were connected to the lan as they're more designed for mobile use. What are the IP addresses of the local servers and your local interface? If you do a traceroute to the IP of the local site IP, it should reveal what's going wrong: From terminal, type " traceroute n.n.n.n" and post back the results. Have a look at your routes: Open a terminal window and type " netstat -nr" and post back the results. You'll probably have to add some static routes. I did a quick Google, but it doesn't look as simple as under Windows or Linux. I'm sure KW or someone can figure it out though, so I'll leave it to those who know. You could also have a quick look at this: http://www.webboise.com/persistent-ip-r ... s-x-tiger/_________________jonbwfc's law: "In any forum thread someone will, no matter what the subject, mention Firefly." When you're feeling too silly for x404, youRwired.net
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| Sat Aug 01, 2009 6:20 pm |
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paulzolo
What's a life?
Joined: Thu Apr 23, 2009 6:27 pm
Posts: 12251
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OK, the hosts file looks like this: I don’t have access to another Mac to compare with. I tried commenting some lines out, but got no change in behaviour. The local server is apparently on 10.37.129.3, which is curiously a Parallels-Guest (this is normal, BTW, and does not appear to affect normal network activity), though with the lack of internet configuration, I usually have a locally assigned DHCP IP address on the airport port, which doesn’t happen. Traceroute to 127.0.0.1 is: In a browser, it just fails instantly. The netstat -nr produces: I have found that I can use MAMP to run the local sites, so not all is lost, but even so, it’s frustrating to have things suddenly not working. I certainly agree that the Mobile Internet hardware assumes that I want that, but when I am on my local network, I would want to revert to usual behaviour, and even when I’m out an about, access to my locally hosted sites is at times essential. Thanks for the help, folk. This is one area of computers where I am totally out of my depth, and certainly was not expecting this kind of behaviour.
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| Sun Aug 02, 2009 9:51 am |
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Nick
Spends far too much time on here
Joined: Thu Apr 23, 2009 11:36 pm
Posts: 3527
Location: Portsmouth
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I'm right in thinking that you are running the web server in a virtual machine, and that virtual machine is 10.37.129.3, yeah?
If that's the case, then does 10.37.129.3 load in a browser?
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| Sun Aug 02, 2009 3:44 pm |
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paulzolo
What's a life?
Joined: Thu Apr 23, 2009 6:27 pm
Posts: 12251
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No - there is no virtual machine running a server. That number is the Parallels “network” connection - and has been present for a long time with not affect on performance. I am starting to wonder if a proxies setting has been messed with - nothing in the preferences though to suggest this, though I don’t know whether it has been “hidden”.
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| Sun Aug 02, 2009 5:28 pm |
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jonbwfc
What's a life?
Joined: Thu Apr 23, 2009 7:26 pm
Posts: 17040
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You know what the old standby is? Create another user account and log in through that. if you don't have the issue then, it's something specific to your account, which means it's probably not been fenangled at a very low level and you can start looking through prefs and the like.
Jon
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| Sun Aug 02, 2009 9:40 pm |
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saspro
Site Admin
Joined: Thu Apr 23, 2009 5:53 pm
Posts: 8603
Location: location, location
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Try accessing the site without the dongle.
It's due to (as said before) all traffic being routed via the 3G connection now via local or wireless.
It also doesn't help that you 3G dongle will have a private IP address
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| Mon Aug 03, 2009 8:58 am |
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