Mine hasn't been connecting for a couple of weeks now. I get "BOINC couldn't do Internet communication, and no default connection is selected. Please connect to the Internet, or select a default connection using Advanced/Options/Connections"

I go to Connections and it is blank. how do I add a connection??

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texaspowerwashing.com

If you have broadband internet (xDSL or Cable), you don't need to create a connection as it should be always on.

What type of internet connection do you have?

Can you post the information from your Messages tab here so we can see what's going on?

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I am having the exact same problem. The connections tab of Options is completely blank. The error message from the OP is the same. I have a direct connection to the internet. Messages below.

12/12/2007 09:10:27 AM||Starting BOINC client version 5.10.28 for windows_intelx86
12/12/2007 09:10:27 AM||log flags: task, file_xfer, sched_ops
12/12/2007 09:10:27 AM||Libraries: libcurl/7.17.0 OpenSSL/0.9.8e zlib/1.2.3
12/12/2007 09:10:27 AM||Executing as a daemon
12/12/2007 09:10:27 AM||Data directory: C:\\Program Files\\BOINC
12/12/2007 09:10:27 AM||BOINC is running as a service and as a non-system user.
12/12/2007 09:10:27 AM||No application graphics will be available.
12/12/2007 09:10:27 AM||Processor: 1 GenuineIntel Intel(R) Pentium(R) 4 CPU 3.20GHz [x86 Family 15 Model 4 Stepping 1]
12/12/2007 09:10:27 AM||Processor features: fpu tsc sse sse2 mmx
12/12/2007 09:10:27 AM||OS: Microsoft Windows XP: Professional Edition, Service Pack 2, (05.01.2600.00)
12/12/2007 09:10:27 AM||Memory: 2.25 GB physical, 5.10 GB virtual
12/12/2007 09:10:27 AM||Disk: 74.53 GB total, 11.81 GB free
12/12/2007 09:10:27 AM||Local time is UTC -5 hours
12/12/2007 09:10:27 AM||No general preferences found - using BOINC defaults
12/12/2007 09:10:27 AM||Preferences limit memory usage when active to 1151.24MB
12/12/2007 09:10:27 AM||Preferences limit memory usage when idle to 2072.23MB
12/12/2007 09:10:27 AM||Preferences limit disk usage to 9.31GB
12/12/2007 09:10:27 AM||This computer is not attached to any projects
12/12/2007 09:10:27 AM||Visit http://boinc.berkeley.edu for instructions
12/12/2007 09:10:41 AM||Fetching configuration file from http://setiathome.berkeley.edu/get_project_config.php
12/12/2007 09:11:23 AM||Project communication failed: attempting access to reference site
12/12/2007 09:12:49 AM||Access to reference site failed - check network connection or proxy configuration.
12/12/2007 09:13:35 AM||No general preferences found - using BOINC defaults
12/12/2007 09:13:35 AM||Reading preferences override file
12/12/2007 09:13:35 AM||Preferences limit memory usage when active to 1151.24MB
12/12/2007 09:13:35 AM||Preferences limit memory usage when idle to 2072.23MB
12/12/2007 09:13:35 AM||Preferences limit disk usage to 9.31GB
12/12/2007 09:18:41 AM||Fetching configuration file from http://setiathome.berkeley.edu/get_project_config.php
12/12/2007 09:20:02 AM||Running CPU benchmarks
12/12/2007 09:20:02 AM||Suspending computation - running CPU benchmarks
12/12/2007 09:20:33 AM||Benchmark results:
12/12/2007 09:20:33 AM|| Number of CPUs: 1
12/12/2007 09:20:33 AM|| 1600 floating point MIPS (Whetstone) per CPU
12/12/2007 09:20:33 AM|| 2482 integer MIPS (Dhrystone) per CPU
12/12/2007 09:20:34 AM||Resuming computation
12/12/2007 09:21:41 AM||No general preferences found - using BOINC defaults
12/12/2007 09:21:41 AM||Reading preferences override file
12/12/2007 09:21:41 AM||Preferences limit memory usage when active to 1151.24MB
12/12/2007 09:21:41 AM||Preferences limit memory usage when idle to 2072.23MB
12/12/2007 09:21:41 AM||Preferences limit disk usage to 9.31GB
12/12/2007 09:22:23 AM||Fetching configuration file from http://einstein.phys.uwm.edu/get_project_config.php
12/12/2007 09:24:52 AM||Fetching configuration file from http://setiathome.berkeley.edu/get_project_config.php
12/12/2007 09:26:08 AM||No general preferences found - using BOINC defaults
12/12/2007 09:26:08 AM||Reading preferences override file
12/12/2007 09:26:08 AM||Preferences limit memory usage when active to 1151.24MB
12/12/2007 09:26:08 AM||Preferences limit memory usage when idle to 2072.23MB
12/12/2007 09:26:08 AM||Preferences limit disk usage to 9.31GB
12/12/2007 09:27:05 AM||Fetching configuration file from http://setiathome.berkeley.edu/get_project_config.php
12/12/2007 09:42:49 AM||Fetching configuration file from http://setiathome.berkeley.edu/get_project_config.php

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After restarting, here are the messages that occur from simply attempting to start up and attach to a project once.

12/12/2007 10:01:50 PM||Starting BOINC client version 5.10.28 for windows_intelx86
12/12/2007 10:01:50 PM||log flags: task, file_xfer, sched_ops
12/12/2007 10:01:50 PM||Libraries: libcurl/7.17.0 OpenSSL/0.9.8e zlib/1.2.3
12/12/2007 10:01:50 PM||Executing as a daemon
12/12/2007 10:01:50 PM||Data directory: C:\\Program Files\\BOINC
12/12/2007 10:01:50 PM||BOINC is running as a service and as a non-system user.
12/12/2007 10:01:50 PM||No application graphics will be available.
12/12/2007 10:01:50 PM||Processor: 1 GenuineIntel Intel(R) Pentium(R) 4 CPU 3.20GHz [x86 Family 15 Model 4 Stepping 1]
12/12/2007 10:01:50 PM||Processor features: fpu tsc sse sse2 mmx
12/12/2007 10:01:50 PM||OS: Microsoft Windows XP: Professional Edition, Service Pack 2, (05.01.2600.00)
12/12/2007 10:01:50 PM||Memory: 2.25 GB physical, 5.10 GB virtual
12/12/2007 10:01:50 PM||Disk: 74.53 GB total, 11.82 GB free
12/12/2007 10:01:50 PM||Local time is UTC -5 hours
12/12/2007 10:01:50 PM||No general preferences found - using BOINC defaults
12/12/2007 10:01:50 PM||Reading preferences override file
12/12/2007 10:01:50 PM||Preferences limit memory usage when active to 1151.24MB
12/12/2007 10:01:50 PM||Preferences limit memory usage when idle to 2072.23MB
12/12/2007 10:01:50 PM||Preferences limit disk usage to 9.31GB
12/12/2007 10:01:51 PM||This computer is not attached to any projects
12/12/2007 10:01:51 PM||Visit http://boinc.berkeley.edu for instructions
12/13/2007 06:50:20 AM||Fetching configuration file from http://setiathome.berkeley.edu/get_project_config.php
12/13/2007 06:51:03 AM||Project communication failed: attempting access to reference site
12/13/2007 06:52:29 AM||Access to reference site failed - check network connection or proxy configuration.

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After restarting, here are the messages that occur from simply attempting to start up and attach to a project once.

12/12/2007 10:01:50 PM||Starting BOINC client version 5.10.28 for windows_intelx86
12/12/2007 10:01:50 PM||log flags: task, file_xfer, sched_ops
12/12/2007 10:01:50 PM||Libraries: libcurl/7.17.0 OpenSSL/0.9.8e zlib/1.2.3
12/12/2007 10:01:50 PM||Executing as a daemon
12/12/2007 10:01:50 PM||Data directory: C:\\Program Files\\BOINC
12/12/2007 10:01:50 PM||BOINC is running as a service and as a non-system user.
12/12/2007 10:01:50 PM||No application graphics will be available.
12/12/2007 10:01:50 PM||Processor: 1 GenuineIntel Intel(R) Pentium(R) 4 CPU 3.20GHz [x86 Family 15 Model 4 Stepping 1]
12/12/2007 10:01:50 PM||Processor features: fpu tsc sse sse2 mmx
12/12/2007 10:01:50 PM||OS: Microsoft Windows XP: Professional Edition, Service Pack 2, (05.01.2600.00)
12/12/2007 10:01:50 PM||Memory: 2.25 GB physical, 5.10 GB virtual
12/12/2007 10:01:50 PM||Disk: 74.53 GB total, 11.82 GB free
12/12/2007 10:01:50 PM||Local time is UTC -5 hours
12/12/2007 10:01:50 PM||No general preferences found - using BOINC defaults
12/12/2007 10:01:50 PM||Reading preferences override file
12/12/2007 10:01:50 PM||Preferences limit memory usage when active to 1151.24MB
12/12/2007 10:01:50 PM||Preferences limit memory usage when idle to 2072.23MB
12/12/2007 10:01:50 PM||Preferences limit disk usage to 9.31GB
12/12/2007 10:01:51 PM||This computer is not attached to any projects
12/12/2007 10:01:51 PM||Visit http://boinc.berkeley.edu for instructions
12/13/2007 06:50:20 AM||Fetching configuration file from http://setiathome.berkeley.edu/get_project_config.php
12/13/2007 06:51:03 AM||Project communication failed: attempting access to reference site
12/13/2007 06:52:29 AM||Access to reference site failed - check network connection or proxy configuration.

May be just too obvious but have you checked your Firewall settings?

F.

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May be just too obvious but have you checked your Firewall settings?

F.

I do not have a firewall running on my machine and I can visit the URL via Firefox, so it cannot be blocked.

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May be just too obvious but have you checked your Firewall settings?

F.

I do not have a firewall running on my machine and I can visit the URL via Firefox, so it cannot be blocked.

OK. Google is used as a "reference site" as quoted in the last line of your listing, so can you ping that from a command prompt?

F.

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After restarting, here are the messages that occur from simply attempting to start up and attach to a project once.

12/12/2007 10:01:50 PM||Starting BOINC client version 5.10.28 for windows_intelx86
12/12/2007 10:01:50 PM||log flags: task, file_xfer, sched_ops
12/12/2007 10:01:50 PM||Libraries: libcurl/7.17.0 OpenSSL/0.9.8e zlib/1.2.3
12/12/2007 10:01:50 PM||Executing as a daemon
12/12/2007 10:01:50 PM||Data directory: C:\\Program Files\\BOINC
12/12/2007 10:01:50 PM||BOINC is running as a service and as a non-system user.
12/12/2007 10:01:50 PM||No application graphics will be available.
12/12/2007 10:01:50 PM||Processor: 1 GenuineIntel Intel(R) Pentium(R) 4 CPU 3.20GHz [x86 Family 15 Model 4 Stepping 1]
12/12/2007 10:01:50 PM||Processor features: fpu tsc sse sse2 mmx
12/12/2007 10:01:50 PM||OS: Microsoft Windows XP: Professional Edition, Service Pack 2, (05.01.2600.00)
12/12/2007 10:01:50 PM||Memory: 2.25 GB physical, 5.10 GB virtual
12/12/2007 10:01:50 PM||Disk: 74.53 GB total, 11.82 GB free
12/12/2007 10:01:50 PM||Local time is UTC -5 hours
12/12/2007 10:01:50 PM||No general preferences found - using BOINC defaults
12/12/2007 10:01:50 PM||Reading preferences override file
12/12/2007 10:01:50 PM||Preferences limit memory usage when active to 1151.24MB
12/12/2007 10:01:50 PM||Preferences limit memory usage when idle to 2072.23MB
12/12/2007 10:01:50 PM||Preferences limit disk usage to 9.31GB
12/12/2007 10:01:51 PM||This computer is not attached to any projects
12/12/2007 10:01:51 PM||Visit http://boinc.berkeley.edu for instructions
12/13/2007 06:50:20 AM||Fetching configuration file from http://setiathome.berkeley.edu/get_project_config.php
12/13/2007 06:51:03 AM||Project communication failed: attempting access to reference site
12/13/2007 06:52:29 AM||Access to reference site failed - check network connection or proxy configuration.

In addition to Fred's assistance, can you also check your local options via BOINC Manager -> Advanced -> Options, check HTTP Proxy and SOCKS Proxy. If you are not using a proxy, make sure they are not selected (enabled).

Also, check the Connections tab to make sure the right connection is selected. If there is no connections listed and you have broadband access (xDSL or Cable internet), then there is no need for a default connection (and its usually blank).

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