Anyone experienced with air-gapped computers?
Posted by Redwebec@reddit | vintagecomputing | View on Reddit | 22 comments
I realized I've been asking my question the wrong way. I have an old computer and hope to replace it. But it's used as a word processor, not hooked up to the internet. I'm borrowing a friend's laptop, and every few months its USB ports shut down and refuse to read anything plugged in, until it get updates from an internet hook-up.
This seems to be a newer feature. No one can explain what's going on, and I realized that's because hardly anyone has experience with a computer that's not online.
So, a long shot - does anyone here have an air-gapped computer, one that is not connected to the internet? Do you know where I can try to figure out what's causing this USB port problem? There must be some kind of tweak that can be untweaked.
Or, for future reference, any specialized should I can ask?
Alarming_Cap4777@reddit
I've seen this. There was a trojan in a commercial product that was messing with the USB ports and the USB ports would turnoff, rebooted and they were fine. I had a major demo and when out and bought a new PC. When I was DL'ing software my firewall blocked the DL from the commercial site. At the time only Bitdefender was able to detect it on the PC.
docshipley@reddit
It would probably be useful to name that product.
jrgman42@reddit
I work in “control systems” computers. By necessity, the large majority are air-gapped. I have never experienced what you describe…but we also rarely use the USB ports. I would venture this is not directly related to being air-gapped. I would look into a possible failing power supply, or motherboard. Using an add-on USB card can help to troubleshoot.
Ir could also be software-related. USB support was an addon feature to Windows 98. Windows has been notoriously unstable if left running for long periods. I would not expect that behavior in Linux.
MadMadeline101@reddit
Hi fellow scada worker! :)
I'm in scada engineering. My vintage computer knowledge is handy for work.
arcticFrogSpoon@reddit
I would have to assume rebooting would fix this too. I’ve run computers with no network for years - like others have said, requiring network is not a thing. I would consider trying a powered usb hub and see if you have better luck.
Accurate-Campaign821@reddit
Configure windows update to NOT update drivers. I'm assuming Windows 11? Search "Device installation settings" and set to NO for driver updates. You'll still be able to manually install them if you want.
2raysdiver@reddit
This was a regular occurrence on the two Windows ME systems I maintained.
If this were something where the OS powered them down after non-use, I would think it would be more like after hours to a day or two, not after a couple months. But I doubt it has anything to do with being air-gapped. It would REALLY help to know the system configuration and the OS. If it uses the enterprise version of Windows 10 or 11, it is possible that your corporate desktop policy disables USB use after a prolonged period not connect to the network. Our corporate policy allows us to copy files from a USB drive, but we can't write to one.
roanish@reddit
USB port DRM. That's a new one to me.
dst1980@reddit
I can't say I have seen the exact behavior you are asking about, but I have experienced Windows 11 in a VM choosing to drop USB and thereby the primary network connection until it did a reboot or two. I have yet to track and resolve the issue, but I suspect my issue is related to quietly applied updates.
As others are saying, if you are having issues with a modern commercial OS, it could easily be related to updates. If it is an older OS, look at the hardware. I doubt it is as easy as a self-resetting fuse (overloaded USB or faulty fuse), but I won't rule that possibility.
More details would help the hive mind get you a better idea of what is going on with the system.
LXC37@reddit
Either a misunderstanding/user error, someone (microsoft or laptop manufacturer) playing dirty, which would not surprise me but is still unlikely, or malware (this would be quite useful - force user to connect to the internet so that it can upload whatever it harvested).
I work with plenty stuff that has never been connected to the internet at work. And i have win11 system for games at home which has never been connected to the internet.
No issues.
FlatLecture@reddit
I have 5 PC’s…4 of them are air gapped. The USB have never randomly shut off on any of them. Now these PC’s are running Windows 95, 98SE, 2000 and XP. If your air gapped PC is running something modern like Windows 10 or 11, then I’m not sure why the USB might be shutting off. Do you have the most up to date BIOS? What about motherboard updates?
Savings_Art5944@reddit
Never have I ever seen that happen.
Whorehammer@reddit
I've seen USB ports shut down to save power and then not come back on. There's an option in Device Manager that says something like "Allow this port to shut down to save power", and you can uncheck that option. Never seen a USB port respond to network status, they're totally separate systems.
Sorry-Climate-7982@reddit
And some power profile options may do it anyway. Good point.
Sorry-Climate-7982@reddit
What operating system is the USB wacky system running on?
And what type/brand is it?
Windows 10 or newer, or an older version of Windows?
Apple?
Linux?
Solaris?
AIX?
DefiantPenguin@reddit
Mmmmmmm Solaris. It’s been a while.
Sorry-Climate-7982@reddit
Surprisingly enough it is still in use.
Witty_Sea5066@reddit
It's either a hardware or software issue. I'd wipe and reinstall the OS, and if it's older than Intel 8th gen, it should be using windows 10 and not 11. Some people bypass the restrictions and then it's easy to have issues because of mismatched drivers, or simply because that specific hardware and software combination has never been tested by the manufacturer.
Either way, computers even when they're not connected to the internet, are not supposed to do that.
That's not a feature that I know of. It probably doesn't exist. It's likely to be some sort of software failure. I don't think you can diagnose that without significant tinkering.
I'd get a different laptop.
teknosophy_com@reddit
Yeah, realllly hoping this is an anomaly. Reallly hoping it isn't Microsoft's next attack on humanity.
JJDoes1tAll@reddit
Hi
That is an interesting issue
Personally, I feel the best offline only laptop is one that runs Linux, like Ubuntu, Fedora, CachyOS. They all have fantastic word processors, can run on modern laptops that offer 8+ hours of battery life, and wont bother you about being offline
SpeedDaemon1969@reddit
What?
magnificentfoxes@reddit
Which OS is the laptop running on?