现在哪个版本的router os 最稳定，不掉线？

mjp12345

各位高手们，现在哪个版本的router os 最稳定，不掉线？

我用的2.8.28 老掉线，掉线是不是与我加的防火墙有关？
下面是配置：
/ ip firewall rule forward
add connection-state=related action=accept comment="Related connections" \
    disabled=no
add dst-address=:69 protocol=tcp action=drop comment="drop blaster worm" \
    disabled=no
add dst-address=:69 protocol=udp action=drop comment="drop blaster worm" \
    disabled=no
add dst-address=:134-139 protocol=tcp action=drop comment="drop blaster worm" \
    disabled=no
add dst-address=:134-139 protocol=udp action=drop comment="drop blaster worm" \
    disabled=no
add dst-address=:161-162 protocol=tcp action=drop comment="drop SNMP Trap" \
    disabled=no
add dst-address=:161-162 protocol=udp action=drop comment="drop SNMP Trap" \
    disabled=no
add dst-address=:445 protocol=tcp action=drop comment="drop blaster worm" \
    disabled=no
add dst-address=:445 protocol=udp action=drop comment="drop blaster worm" \
    disabled=no
add dst-address=:554 protocol=tcp action=drop comment="drop blaster wrom" \
    disabled=no
add dst-address=:554 protocol=udp action=drop comment="drop blaster worm" \
    disabled=no
add dst-address=:593 protocol=tcp action=drop comment="drop blaster worm" \
    disabled=no
add dst-address=:593 protocol=udp action=drop comment="drop blaster worm" \
    disabled=no
add dst-address=:1025 protocol=tcp action=drop comment="drop blaster worm" \
    disabled=no
add dst-address=:1025 protocol=udp action=drop comment="drop blaster worm" \
    disabled=no
add dst-address=:2000 protocol=tcp action=drop comment="drop Millenium" \
    disabled=no
add dst-address=:2000 protocol=udp action=drop comment="drop millenium" \
    disabled=no
add dst-address=:3127-3198 protocol=tcp action=drop comment="drop proxy worm" \
    disabled=no
add dst-address=:3127-3198 protocol=udp action=drop comment="drop proxy worm" \
    disabled=no
add dst-address=:3389 protocol=tcp action=drop comment="drop windows supper \
    clinet link" disabled=no
add dst-address=:4444 protocol=tcp action=drop comment="drop blaster worm" \
    disabled=no
add dst-address=:4444 protocol=udp action=drop comment="drop blaster worm" \
    disabled=no
add dst-address=:6881-6889 protocol=tcp action=drop comment="drop drop Bt \
    download" disabled=no
add dst-address=:6881-6889 protocol=udp action=drop comment="drop drop Bt \
    download" disabled=no
add dst-address=:8881-8889 protocol=tcp action=drop comment="drop drop Bt \
    download" disabled=no
add dst-address=:8881-8889 protocol=udp action=drop comment="drop drop Bt \
    download" disabled=no
add dst-address=:39213 protocol=tcp action=drop comment="drop worm" \
    disabled=no

KENT

防火墙花样越少越好.

bow

现在刚出来的2.9.26应该不错