If your MSN have not been able to online, or is not OK, some website OK website
# may be MTU problem, you can uncomment this line to him to start under MTU limits
# iptables -a FORWARD -p TCP - m TCP - TCP - flags SYN, RST SYN - m TCPMSS \
# - MSS 1400:1536 - j TCPMSS - clamp MSS - to - pmtu