I have a Logitech mouse and keyboard, speakers, a headset, and a D-Link DWA-131 Wireless N Nano USB adapter. My keyboard and headset are also wireless. The rest are wired.
I also tried to flash to a previous version of the BIOS but the on board ASUS program did not allow me to downgrade.
How did you try to flash? Through Windows?
I should also mention that USB wireless network adapters are rather unstable to begin with. You may want to test with it removed and see if the system is more stable.
I have tested with them removed and it did not make a difference. Yes, I tried to flash through Windows.
To revert back to an earlier BIOS, I would recommend using a DOS based flash utility or doing the flash through the BIOS if your BIOS supports that feature. I am unable to access ASUS at this time due to some website issues they seem to be having, so I cannot check your motherboard and support site to provide better help.
I think I have fixed the problem. I purchased a new power supply and since then I have had no issues. I will remain in touch if anything goes wrong.
Thank you for the update. Best wishes the new PSU resolves the problems. :)
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