Endian drops packets

[Guest]

[zest]

Hello,

Endian 2.4 drops every 3rd packet...

Example:

 4     6 ms     6 ms     *     so2-2-0-0.bbr1.tln2.ee.eunetip.net [213.192.190.165]
  5     8 ms     7 ms     *     kjj-bb2-ge-0-2-0-12.ee.estpak.ee [213.192.190.170]
  6     7 ms     7 ms     *     kjj-lgw9-te-1-0-1.ee.estpak.ee [90.190.153.13]
  7     7 ms     7 ms     6 ms  194.106.111.42

It doesn't make any sense do I trace google or other site.

And sometimes web browser hang for "seconds" if I press refresh it works fine.

Services enabled:

CRON server   RUNNING
Content filter   STOPPED
DHCP server   RUNNING
DNS proxy server   RUNNING
Email scanner (POP3)   STOPPED
FTP virus scanner   RUNNING
HTTP antivirus (havp)   RUNNING
Intrusion Detection System   RUNNING
Logging server   RUNNING
NTP server   RUNNING
OpenVPN server   RUNNING
Pyzor spam filter   STOPPED
SIProxy   STOPPED
Secure Shell server   RUNNING
Spam filter for POP3 (spamd)   STOPPED
Spam filter for SMTP (amavis)   STOPPED
VPN (IPsec)   STOPPED
Virus scanner   RUNNING
Web proxy   RUNNING
Web server   RUNNING

If I use another "unsecured" network all fine

What could cause this problem, tnx in advance.