OpenVPN connection reset

[BerSerK]

Hi,

I know it's not the first thread about this but I can't find any solid solution.

I configured OpenVPN on pfsense 1.2, it went fine for about 1 week then all clients have their connection reset every 5 seconds.

I have only 4 clients, each with their own certificate build with 'build-key-pass'.

I was running openvpn on tcp 1194 when the problem appeared, now I switched to udp 1194 and the problem went away…

Here's my server config file

writepid /var/run/openvpn_server0.pid
#user nobody
#group nobody
daemon
keepalive 10 60
ping-timer-rem
persist-tun
persist-key
dev tun
proto udp
cipher BF-CBC
up /etc/rc.filter_configure
down /etc/rc.filter_configure
server 10.0.10.0 255.255.255.0
client-config-dir /var/etc/openvpn_csc
push "route 172.20.0.0 255.255.0.0"
lport 1194
push "dhcp-option DOMAIN TDA.local"
push "dhcp-option DNS 172.20.0.51"
push "dhcp-option DNS 172.20.0.52"
ca /var/etc/openvpn_server0.ca
cert /var/etc/openvpn_server0.cert
key /var/etc/openvpn_server0.key
dh /var/etc/openvpn_server0.dh
comp-lzo
persist-remote-ip
float

Here's a sample client config

float 
port 1194 
dev tun 
dev-node ovpn 
proto udp
remote xxx.xxx.xxx.xxx 1194 
ping 10 
persist-tun 
persist-key
tls-client 
ca ca.crt 
cert yannickg.crt 
key yannickg.key 
ns-cert-type server 
comp-lzo
pull 
verb 4

Any help will be appreciated!

Thanks
Bye