Netgear have released (27th Feb) new firmware for DG834GT
http://kbserver.netgear.com/release_notes/D103257.asp Notes from site below, no mention of improving SNRM stability (AR7 chipset issue) though:
Fixed a problem where WEP wireless security would not work with Automatic selected as Authentication Type. However, if Open System is selected it will not work (see Known Issues).
Fixed a problem where if Allow Broadcast of Name (SSID) was unchecked (so SSID not broadcast) clients could not associate when wireless Access Control was enabled.
Fixed a problem where a LAN web server could not be hosted on Port 80.
Added Help for Disable SIP ALG on Advanced WAN Settings page.
Added WAN IP / sending address to Log entries.
Enabled ITU G.992.5 Annex M which extends the capability of basic ADSL2 by doubling the number of upstream bits.