i just upgrade my version yesterday and since last night until now my routerboard is getting restarted
heres my profile
[admin@MikroTik] > /tool profile
NAME CPU USAGE
p2p-matcher all 0.5%
ethernet all 6%
console all 0%
firewall all 27.5%
networking all 6.5%
winbox all 0%
management all 1.5%
routing all 0%
idle all 36%
profiling all 3.5%
queuing all 16.5%
l7-matcher all 1%
unclassified all 1%
any help 
?
Things I’d try:
Check your firmware is up to date. (System > Routerboard)
Make an export of the configuration:
/export file=MyRoutersetup
Drag and drop MyRoutersetup.rsc to your desktop (from Files button on Winbox).
Reset to no defaults and reload the configuration (I assume that’s a router without wireless):
/system reset-configuration no-defaults=yes skip-backup=yes keep-users=yes run-after-reset=MyRoutersetup.rsc
See if the problem persists. If it does, a netinstall would be the next step, see http://wiki.mikrotik.com/wiki/Manual:Netinstall you can reload the .rsc after doing it.
Do you think your router it may be reaching its limits (100% cpu usage) from sustained network load?
i just checked the firmware and it is up to date.
i have rb2011uias-rm and rb951ui, rb951 is crashing every hour and rb2011 is crashing frequently
so i am up to that netinstall but can do today because im just doing things remotely and on the cpu usage i dont think im reaching 100%.
thanks for the support 
ill try the netinstall and give feedback later
what’s your bandwidth? maybe the L7 matchers is taxing out the CPU?