1 2 3 Previous Next 34 Replies Latest reply: Aug 16, 2012 6:07 AM by Geoff Roynon
Geoff Roynon Level 1 Level 1 (10 points)

I am a moderator on the citizen science “Moon Zoo” forum and one of the tools we use to examine images of the lunar surface sent back by the Lunar Reconnaissance Orbiter is the ACT-REACT QuickMap Tool - found at http://target.lroc.asu.edu/da/qmap.html?mv=eqc&mcx=0&mcy=0&mz=1

 

When people find an image they want us to look at they often post an ACT-REACT link. These links are the problem. Under the Mac OS X 10.7.4 release, using the latest Safari (5.1.7) or Chrome (18.0) or Firefox (12.0) browsers, the images take ages (from 9 to 17 minutes) to load. Sometimes they don’t load at all.

 

The same ACT-REACT link will load in under a minute when using Mac OS X 10.6 (Snow Leopard) on the same machine - I have a second hard-drive containing Snow Leopard. None of the users of the forum using PC software have reported problems so looks like it's restricted to Lion.

 

Other web sites work fine, it is only this one site that I have problems with and only when using Lion.

 

The following ACT-REACT link is the one I used in testing: http://target.lroc.asu.edu/da/qmap.html?mv=eqc&mcx=3910780.30841&mcy=-615107.273 23&mz=11

 

When using Safari 5.1.7 to access the above link I get the following messages in the Error Console:

 

“Failed to load resource: The request timed out.  fprovweb.exe” (this error displayed over 300 times)

 

Full image took 17 minutes to load.

 

 

Google Chrome 18.0 browser took 9 minutes to load the image.

 

Firefox 12.0 browser never finished loading.

 

This problem occurs on my Mac Pro and MacBook systems.

 

I have reported this on the Apple Feedback site.

  • 1. Re: Lion web browsing extremely slow for one site.
    petermac87 Level 5 Level 5 (4,205 points)

    Geoff Roynon wrote:

     

    Full image took 17 minutes to load.

     

     

    Google Chrome 18.0 browser took 9 minutes to load the image.

     

    Firefox 12.0 browser never finished loading.

     

    This problem occurs on my Mac Pro and MacBook systems.

     

    I have reported this on the Apple Feedback site.

    Strange, I just tried it in Safari under !0.7.4 and it opened immediately. Have you cleaned your caches in Safari recently?

     

    Pete

  • 2. Re: Lion web browsing extremely slow for one site.
    Geoff Roynon Level 1 Level 1 (10 points)

    Thanks for the response.

     

    I have tried clearing caches in all browsers, resetting Safari - nothing helps. I originally thought it may be a Mac Pro problem but same slow browsing happens on my MacBook.

  • 3. Re: Lion web browsing extremely slow for one site.
    petermac87 Level 5 Level 5 (4,205 points)

    Geoff Roynon wrote:

     

    Thanks for the response.

     

    I have tried clearing caches in all browsers, resetting Safari - nothing helps. I originally thought it may be a Mac Pro problem but same slow browsing happens on my MacBook.

    If all other sites are opening then I can't see it as a router/modem problem, though you could try rebooting it. You are not running any anti-virus or third party security software like Little Snitch or anything are you?

     

    Pete

  • 4. Re: Lion web browsing extremely slow for one site.
    softwater Level 5 Level 5 (5,370 points)

    Since the upgrade, have you tested loading this site from a differnt machine on the same router and found the load times significantly different?

     

    Could be your IP address.

     

    Also, I'll own it's probably a long shot, but there's no harm in flushing the DNS caches, Quit Safari, first, then open Terminal (Applications > Utilities > Terminal.app) and paste this command

     

    sudo killall -HUP mDNSResponder

     

    Press 'return'. You'll need to type your Admin password, which will be invisible.

     

    Reopen Safari and try again. Same problem?

     


  • 5. Re: Lion web browsing extremely slow for one site.
    Geoff Roynon Level 1 Level 1 (10 points)

    I'm not using Little Snitch but I do have Sophos anti-virus installed.

     

    I have rebooted my router multiple times with no effect and have also changed my DNS settings to Open DNS and same problem.

  • 6. Re: Lion web browsing extremely slow for one site.
    Chamar Level 4 Level 4 (2,035 points)

    Loads almost instantly for me on Lion (10.7.4) with Safari (5.1.7), Firefox (13) and Chrome (19.0.1084).  Nice image!

     

    Tried the link on an iMac, an MBP and an MBA, all with similar results.

     

    DNS problem maybe? (Maybe not as I've just seen your most recent post)

  • 7. Re: Lion web browsing extremely slow for one site.
    softwater Level 5 Level 5 (5,370 points)

    In which case, try this. Enable a new user account in

     

     > System Preferences > Users & Groups

     

    Log into it, open Safari, and try your website.

     

    If no problem, then its a software conflict in your normal account.

  • 8. Re: Lion web browsing extremely slow for one site.
    Geoff Roynon Level 1 Level 1 (10 points)

    Just tried this and the site is loading in a separate window - at 3 minutes and counting and still a blank screen!

  • 9. Re: Lion web browsing extremely slow for one site.
    Geoff Roynon Level 1 Level 1 (10 points)

    I have changed my DNS settings from the default ISP (Demon) and am now using Open DNS. No change.

  • 10. Re: Lion web browsing extremely slow for one site.
    Chamar Level 4 Level 4 (2,035 points)

    Yes, I noticed you'd changed DNS servers since I posted.

     

    FWIW I'm using OpenDNS on a 20Meg TalkTalk connection.

  • 11. Re: Lion web browsing extremely slow for one site.
    softwater Level 5 Level 5 (5,370 points)

    So, have you tested another machine (iPad, smartphone, any web-brower enable device) on the same router since this problem started? You need to do that before you can eliminate other causes aside from Lion (and although I'm no fan of Lion myself, I can't see this problem being down to the OS).

     

    Alternatively, take your Lion-enabled MBP somewhere else (coffee shop, work, whatever) and see if the problem is the same on another network.

  • 12. Re: Lion web browsing extremely slow for one site.
    Geoff Roynon Level 1 Level 1 (10 points)

    I've just tested on my iPad using the link above - the full image loads in under a minute.

     

    I don't think it has anything to do with my network because booting into Snow Leopard resolves the problem.

  • 13. Re: Lion web browsing extremely slow for one site.
    softwater Level 5 Level 5 (5,370 points)

    Ok, that's good (in the sense that we've ruled out the router and your IP address being blocked).

     

    I'd still like to know what the result of flushing the DNS cache is (using the terminal command I provided above). If nothing else, that rules out another possibility.

     

    If the problem persists, start up in Safe Mode. And try the following three tests

     

    1.Connect to the internet via ethernet cable. Same problem?

     

    2. Try connecting to the internet using wifi. Same problem?

     

    3. Logout of Safe mode and log in to your normal account. Same problem?

     

    Please let us know the answers to the above three questions.

  • 14. Re: Lion web browsing extremely slow for one site.
    Geoff Roynon Level 1 Level 1 (10 points)

    I have tried running in Safe Mode and no change.

     

    My Mac Pro is connected to my router by ethernet and WiFi. Doesn't help disconnecting either.

     

    I have a Belkin router connected to the ADSL line. An ethernet cable connects the router to my Time Capsule. I have an ethernet cable from the Time Capsule to my Mac Pro and I connect to the Time Capsule via WiFi as well.

    The Macbook uses WiFi only.

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