Before doing the bios update:
- did you make/create a complete system image (a full backup of your system) and save a copy of your important files?
- did you try to reinstall the vpn software?
- what's your ram manufacturer and
model?
- did you set the ram sticks in 2nd and 4th slots (of your motherboard, start counting from the cpu)?
For the bios update: I would use the
Q-flash utility (click), I will not do it inside windows.
I think you can also
create a backup for your current bios version, and I would also do that.
If you think it is too risky, the bios update is not mandatory (that's your machine, not mine): the choice is yours.