Hello,
My WRT1900 has been fairly stable and is running the latest firmware available of this writing. My 2Ghz network seems to be rock solid, however when I connect the same laptop to the 5Ghz network, I experience frequent disconnects.
I have a Dell E6420 with a DW1530 Wireless NIC running Driver 5.100.235.12 dated 1/7/2011.
I have almost a stock "Default" configuration (channels/bands both set to Auto)...Two unique SSID's for 2/5Ghz and I'm physically within 15' of my WRT when experiencing the random disconnects from the 5GHz network.
Any suggestions?
//Brew