I apologize if this is what you were told. It's not accurate.
There are no firmware update viruses. Things can go wrong with a firmware update, but nobody is writing virus codes for them or altering the updates in any way.
The firmware updates come from our engineers, who put them up, and we know exactly where they come from - our servers.
If you are experiencing a network problem with your unit, you could have it sent in for a repair, or roll back to a previous version of firmware. Either way, try calling 800-SAMSUNG and see if a different representative might be able to assist you better.
Since the latest firmware upgrades (which added Blockbuster and YouTube), the Bluray player loses the wireless connection after a few minutes. The Samsung call center informs me that firmware updates are like viruses, Samsung doesn't know where they come from, and I should never accept them. That is ridiculous. Does anyone know what the problem is and when it will be fixed?