If You're Having Trouble Connecting Since the Big Move to CalTech....

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Profile Carl Christensen
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Message 5807 - Posted: 23 Jul 2015, 12:09:05 UTC

Some people are having trouble connecting -- this is probably due to the operating system (it seems to mostly be a Windows problem) caching the old qcn.stanford addresses, and not liking the forwarding to qcn.caltech (probably a "safety feature" in Windows).

You can try doing a "Reset Project" in the BOINC Manager program to see if that will correct things. If not, you may have to do a more drastic "Remove Project" and then "Attach Project" to our new URL: http://qcn.caltech.edu/sensor

You may want to first go to the "Your Account" page at the website to make sure you know which email address you used, and find/recover your password information as you will need this to login again.

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Message 5808 - Posted: 24 Jul 2015, 13:11:20 UTC

http://qcn.caltech.edu/sensor did not work for me still communication deferred ....
run on windows xp and on win 7

Profile Carl Christensen
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Message 5809 - Posted: 24 Jul 2015, 17:40:26 UTC - in response to Message 5808.
Last modified: 25 Jul 2015, 2:14:38 UTC

On the QCN facebook group, Larry Cloud posted these instructions for clearing the Windows DNS cache - you may want to give it a try:


    Hit the Start button in the bottom left corner of your screen, and in the little text box right above that, type:
    cmd

    it should show a black box above it that will say CMD or Command Prompt -
    RIGHT click on that and choose Run As Administrator, say Yes if it asks for permission.
    In that black box you'll probably now see: c:\windows\system32 >

    now type this:
    ipconfig /flushdns


    You should see:

    Windows IP Configuration
    Successfully flushed the DNS Resolver Cache.


    Then type:
    exit



This will make the black box go away. This should force your computer to do a new lookup for the IP address of any site you try to connect to on the Internet. It erases the old DNS data which, in your case, is probably still pointed to the Stanford servers.

rainer schlawginski
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Message 5814 - Posted: 26 Jul 2015, 12:57:21 UTC - in response to Message 5809.

hi thanks for the hint, but it did not do the trick, is still show the diverted 2 hours or so.
i switched to the qcn.emsc-csem.org/sensor there i have no problem,
so it is not a settings problem.
the dns is also not the problem.
it just will not upload.
it look like firewall problem at the new server location.

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Message 5817 - Posted: 26 Jul 2015, 18:16:32 UTC - in response to Message 5814.

Mine have been uploading OK from Australia.

Profile Carl Christensen
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Message 5820 - Posted: 27 Jul 2015, 1:20:04 UTC - in response to Message 5814.

If it's a firewall problem - then it's probably on your local machine ie did you open up a firewall long ago for qcn.stanford.edu and qcn-upl.stanford.edu etc? You probably will now have to allow port 80 (http) and port 123 (ntpd) to qcn.caltech.edu and qcn-upl.caltech.edu (and make sure you're detached from the old qcn.stanford.edu URL and attached to qcn.caltech.edu/sensor in the BOINC Manager)

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Message 5827 - Posted: 29 Jul 2015, 22:01:30 UTC

I noticed even after following the instructions of removing project and reattching project the properties still show that the Master URL is pointing at the old address. Perhaps this is a World Grind -BOINC Manager not being properly updated. ?

Charles LaDue
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Message 5828 - Posted: 29 Jul 2015, 22:02:50 UTC - in response to Message 5827.

I also cleared my DNS cache following the ipconfig /flushdns solution. It did not appear to change anything.

Profile Carl Christensen
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Message 5829 - Posted: 29 Jul 2015, 22:07:02 UTC - in response to Message 5827.

that's odd - do you mean you get here via "World Community Grid" (IBM)? It looks like you're coming through fine anyway: http://qcn.caltech.edu/sensor/show_host_detail.php?hostid=28448

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Message 5831 - Posted: 30 Jul 2015, 17:11:06 UTC
Last modified: 30 Jul 2015, 17:15:11 UTC

Nothing works on my side. I did reset, remove and add project, flush DNS, reinstall from scratch.
On the end antivirus show that boinc.exe is infected.
link to screen shot from antivirus

Les Bayliss
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Message 5834 - Posted: 30 Jul 2015, 19:39:49 UTC - in response to Message 5831.

Hello Skorrogan

This usually means that the anti virus program has a search string that includes a code string from BOINC. This is known as a "false positive".
The long recommended cure is to use AV options to exclude the BOINC software.

Michael Irick
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Message 5850 - Posted: 14 Aug 2015, 13:37:56 UTC

We've run into something odd. We moved to the new address, and BOINC seems to still be working in our pc, and our trigger list is still showing current activity, but when we go to the interactive maps, we see nothing but sensors - new quakes are not showing up anywhere on the planet. What's going on?

Profile Carl Christensen
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Message 5851 - Posted: 14 Aug 2015, 14:45:21 UTC - in response to Message 5850.

thanks for spotting that, it looks like the latest earthquake script was hanging yesterday. I restarted it - I hope that doesn't mean the server is having problems (last time that happened, back at Stanford, it meant the server's memory/RAM was bad)

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Message 5865 - Posted: 20 Aug 2015, 3:47:57 UTC - in response to Message 5807.

Carl, so I have reset, removed reinstalled many times and I end up with TWO (2) projects , one from Caltech the other from Stanford.

so somewhere there is a problem, for one thing the QCN on Boinc to set the project still points to Stanford, not Caltech. I keep receiving the same message that I have two projects going, so I go and remove both, reinstall with the correct Caltech address and communication is deferred for two plus hours, when it finally goes it reinstalls the Stanford site alone with the Caltech site.

Please Advise?

JBDAV8888
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Message 5866 - Posted: 20 Aug 2015, 7:27:35 UTC - in response to Message 5865.

Have you cleared the cache?
Also, don't use the url in the manager to connect to the project. There shouldn't be one there in the first place. Type in in by hand.


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Message 5867 - Posted: 20 Aug 2015, 16:44:10 UTC

Are you using an account manager?
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Message 5868 - Posted: 20 Aug 2015, 17:26:52 UTC - in response to Message 5866.
Last modified: 20 Aug 2015, 17:27:54 UTC

Hello done, and done,

yes I copy and paste the correct Caltech URL and remove all instances of QCN, I also clear cache and have removed QCN with Revo Uninstaller Pro to find all entries to QCN including registry entries.

still end up with Two (2) instance of QCN one pointing to Caltech and the other to Stanford

No account manager...

freakishly odd

J
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Profile Carl Christensen
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Message 5869 - Posted: 20 Aug 2015, 17:39:07 UTC - in response to Message 5868.
Last modified: 20 Aug 2015, 17:39:53 UTC

I'd say at this point remove all QCN projects, uninstall boinc, install boinc again, and attach to the new URL ie http://qcn.caltech.edu/sensor

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Message 5870 - Posted: 21 Aug 2015, 6:28:35 UTC

Any hints for clearing DNS cache on a Mac? I removed and re-added and still getting communication deferred, even though it's showing the caltech address.

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Message 5871 - Posted: 21 Aug 2015, 17:07:27 UTC - in response to Message 5870.

I have done all that, using REVO uninstaller Pro to make sure I get everything, reinstall BOINC and reinstall projects.

still receive two QCNs, Stanford, and Caltech

I have removed QCN and will leave it off for a few days to see if that does anything. I will again remove BOINC via revo uninstaller and then reattach projects

WCG
GPUGrid
QCN

I think the re-director from Stanford to Caltech really needs to be removed/retired as pretty much every one that has BOINC gets the notices.

think about it???

Thanks
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