WDR3600 wireless stops broadcasting

[3to1ODDS]

Some time in the early morning no wireless device in my house is able to see the SSID broadcast from this router. I've had this issue two days in a row and yesterday I set up a remote syslog server and forwarded out everything 7 and below to it but after a line-by-line analysis the only out of the ordinary entry is this:
*snip*
Nov 30 06:40:33 gargoyle.lan dropbear[19937]: Child connection from 141.212.121.10:51314
Nov 30 06:40:33 gargoyle.lan dropbear[19937]: Exit before auth: Exited normally
*snip*
every thing else is DDNS related and DHCP renewals. Unfortunately I'm usually late for work in the morning so all I can do is pull the plug on the router, which fixes it, but I do not have the time to attempt to log on to it via lan.
I have been doing some "tweaking" and added the noscan and HT40-( which worked well on the WNR2000 that I replaced with this model, same channel) so I've attached my /etc/config/wireless for review:

config wifi-device 'radio0'
option type 'mac80211'
option macaddr 'XX:XX:XX:XX:XX:XX'
option hwmode '11ng'
list ht_capab 'LDPC'
list ht_capab 'SHORT-GI-20'
list ht_capab 'SHORT-GI-40'
list ht_capab 'TX-STBC'
list ht_capab 'RX-STBC1'
list ht_capab 'DSSS_CCK-40'
option noscan '1'
option channel '11'
option htmode 'HT40-'

config wifi-device 'radio1'
option type 'mac80211'
option macaddr 'XX:XX:XX:XX:XX:XX'
option hwmode '11na'
list ht_capab 'LDPC'
list ht_capab 'SHORT-GI-20'
list ht_capab 'SHORT-GI-40'
list ht_capab 'TX-STBC'
list ht_capab 'RX-STBC1'
list ht_capab 'DSSS_CCK-40'
option channel '157'
option htmode 'HT40+'

config wifi-iface 'ap_g'
option device 'radio0'
option mode 'ap'
option network 'lan'
option ssid 'BOO'
option encryption 'psk2'
option key 'noneyo'

config wifi-iface 'ap_a'
option device 'radio1'
option mode 'ap'
option network 'lan'
option ssid 'YOY'
option encryption 'psk2'
option key 'noneyo'

Any ideas?

[3to1ODDS]

FYI, seems to be the noscan option, which is odd considering it ran just fine on the wnr2000 that I replaced with this model. I've removed it and it seems to be stable.

[diorno]

I'm having this same problem. I'd like to revert to stock/OEM.. What is the procedure for doing that for WDR-3600? I'm reading about modified firmwares that I might need?