Unable to update plug-ins and download OSM data from API

[anonymous]

What steps will reproduce the problem?

1. open JOSM 7182. ask for plug-ins to be updated.
2. Nothing happens exept for each plug-in, after 42 seconds an error message is given
3. go to suggested option: proxy settings
4. No proxy, JAVA 7 (build 40) reports that browser settings are being used.
5. Skip update plug ins
6. open download area: try to create an area to download: nothing happens
7. zoom in or out, then the map disappears and will not return.
8. Blind download results in an error

System Windows 7 Home premium 64 bits on a Sony Vaio. All other Internet connections work fine.

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2014-05-26 07:29:16
Last Changed Author: akks
Revision: 7182
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2014-05-26 09:22:25 +0200 (Mon, 26 May 2014)
Last Changed Rev: 7182

Identification: JOSM/1.5 (7182 nl) Windows 7 64-Bit
Memory Usage: 92 MB / 247 MB (45 MB allocated, but free)
Java version: 1.7.0_55, Oracle Corporation, Java HotSpot(TM) Client VM
VM arguments: [-Djava.security.policy=file:C:\Program Files (x86)\Java\jre7\lib\security\javaws.policy, -DtrustProxy=true, -Xverify:remote, -Djnlpx.home=<java.home>\bin, -Djnlpx.origFilenameArg=C:\Users\Hugo\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\XUNF2DCG\josm.jnlp, -Djnlpx.remove=true, -Dsun.awt.warmup=true, -Xbootclasspath/a:C:\Program Files (x86)\Java\jre7\lib\javaws.jar;C:\Program Files (x86)\Java\jre7\lib\deploy.jar;C:\Program Files (x86)\Java\jre7\lib\plugin.jar, -Djava.util.Arrays.useLegacyMergeSort=true, -Djnlpx.splashport=50160, -Djnlpx.jvm=<java.home>\bin\javaw.exe, -Djnlpx.vmargs=-Djava.util.Arrays.useLegacyMergeSort=true]

Plugin: OpeningHoursEditor (30375)
Plugin: dataimport (30375)
Plugin: jts (30277)
Plugin: terracer (30375)

[Don-vip]

We cannot help you if you don't give us the error messages...