Pidgin sometimes not sends a message

[Danecek]

Pidgin 2.10.7-2 and unstable network(WiFi).
Sometimes I send a message by ICQ or jabber, and its never delivered, but pidgin not shows an warning, message as usulaly seems as send in chat window.

[Danecek (a5607270)]

daniel@leinad_nb ~ $ uname -a
Linux leinad_nb 3.11-2-amd64 #1 SMP Debian 3.11.8-1 (2013-11-13) x86_64 GNU/Linux

mintwelcome says "Linux Mint 1 Debian MATE-64bit."

Pidgin 2.10.7 (libpurple 2.10.7)
unknown

Informace o sestavení
  Arguments to ./configure: '--build=x86_64-linux-gnu' '--prefix=/usr' '--includedir=${prefix}/include' '--mandir=${prefix}/share/man' '--infodir=${prefix}/share/info' '--sysconfdir=/etc' '--localstatedir=/var' '--libexecdir=${prefix}/lib/pidgin' '--disable-maintainer-mode' '--disable-dependency-tracking' '--disable-silent-rules' '--disable-gevolution' '--enable-cap' '--with-system-ssl-certs=/etc/ssl/certs' '--enable-perl' '--with-zephyr=/usr' '--enable-dbus' '--enable-gnutls=no' '--enable-nss=yes' '--enable-cyrus-sasl' '--enable-vv' '--enable-tcl' '--enable-tk' '--with-dynamic-prpls=bonjour,gg,irc,jabber,msn,myspace,mxit,novell,oscar,sametime,simple,yahoo,zephyr' '--enable-nm' 'build_alias=x86_64-linux-gnu' 'CFLAGS=-g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wall' 'LDFLAGS=-Wl,--as-needed' 'CPPFLAGS=-D_FORTIFY_SOURCE=2'
  Print debugging messages: No
  Plugins: Enabled
  SSL: SSL support is present.

  Library Support
    Cyrus SASL: Enabled
    D-Bus: Enabled
    Evolution Addressbook: Disabled
    Gadu-Gadu library (libgadu): Internal
    GtkSpell: Enabled
    GnuTLS: Disabled
    GStreamer: Enabled
    Mono: Disabled
    NetworkManager: Enabled
    Network Security Services (NSS): Enabled
    Perl: Enabled
    Tcl: Disabled
    Tk: Disabled
    UTF-8 DNS (IDN): Enabled
    Voice and Video: Enabled
    X Session Management: Enabled
    XScreenSaver: Enabled
    Zephyr library (libzephyr): External
    Zephyr uses Kerberos: No