[Ekiga-list] Yesterday detected NAT was Symmetric, today it is Blocked

[Dieter Rogiest <dieter rogiest telenet be>]

Hello,

using ekiga-windows-2.0.9 on a WinXP computer with a adsl modem router.

Yesterday "Detect NAT type" in the configuration druid gave "symmetric NAT".
I chose "NAT traversal method" STUN and was able to do video-conferencing.

Today  I couldn't connect anymore to 500 ekiga net or do video-conferencing . 
I noticed that  now "Detect NAT type" resulted in "Blocked".
I changed "NAT traversal method" to IP translation but that didn't seem to 
help. I disabled my software firewall but it was still Blocked. I re-enabled 
my firewall.
15 minutes later again I set it to IP translation and then I was able to 
connect to 500 ekiga net and do video-conferencing again.

I have not a clue why it has changed from symmetric NAT to Blocked. Neither 
why it didn't work the first time I set it to IP translation.
Maybe the internet provider changed something?

Dieter