read_fd_with_timeout failed for client

Hi all,

192.168.1.7 - Windows 7
192.168.1.129 - Windows XP
192.168.1.81 - Windows 8.1
All in the same workgroup

Server & Gateway: Linux SME-9 up to date, as a firewall to Internet

I have a persistent problem. I have those messages repeating exactly every 10 minutes for all Windows machines:

Jul 2 16:35:58 dorgee proftpd[6543]: 192.168.1.1 (192.168.1.81[192.168.1.81]) - FTP session opened. Jul 2 16:35:59 dorgee proftpd[6543]: 192.168.1.1 (192.168.1.81[192.168.1.81]) - FTP session closed. Jul 2 16:36:07 dorgee smbd[6547]: [2015/07/02 16:36:07.097597, 0] smbd/process.c:244(read_packet_remainder) Jul 2 16:36:07 dorgee smbd[6547]: read_fd_with_timeout failed for client 192.168.1.81 read error = NT_STATUS_END_OF_FILE.

It took me a long time to find out that if I uninstall Avast, the problem go away.

I installed Wireshark and the machine all try to contack an Avast server every 10 minutes.

On the SME server I ajusted all the timeouts for a long time to activate with no result.

Any suggestions appreciated,

André

It took me a long time to find out that if I uninstall Avast, the problem go away.
Is this avast endpoint or business? ..... if so you are in wrong forum section

Thank you Pondus for your response.

This is my setup at home, this is not a business, it is personnal.

Michel-André