Private chat does not work in most cases

[Shareaza-user]

When I try to open a private chat, in most cases it does not work. Where once it did work. In some cases it works.
I think all the settings in Sahreaza are correct.
Disabeling the firewall in my router and the Windows firewall does not make any difference.
I forwarded port 6346 and have a static IP-address. I use the 64-bit version of Shareaza.
Disabled uPnP in my router so it keeps on using port nr 6346. When enabled it opens a different port every time.
When I try to chat with myself (a few weeks ago this was no problem) as a test, I get following message:
[13:22:22] Private conversation granted, you are now chatting with TestChatFunction.
[13:22:22] The chat connection was lost.
[13:22:22] Connection closed
Does anyone know what causes this problem? And how can I solve this?
Also it looks like I cannot search the entire network. Files from users I know should be available I do not see in my search results.
I reïnstalled Sahreaza a few times. This did not help.
I am not very technical.
HELP!

[ivan386]

Check that you set name in profile.