05-17-2023, 10:04 AM
That access denied error on file shares from expired passwords can really throw a wrench into your day.
I remember this one time when I was helping a buddy at his small office setup.
His team couldn't grab files from the server anymore, and it turned out a bunch of service accounts had passwords that just timed out without anyone noticing.
Everyone was scrambling, thinking it was some big hack or permission mess-up.
But nope, just those sneaky expiration dates kicking in.
We poked around the event logs first, spotting those authentication failures popping up like weeds.
Then checked the user accounts in Active Directory, saw the passwords were set to expire every 90 days or whatever policy he had running.
One account was for the file share service itself, totally forgotten.
Another time, it was a shared workstation credential that lapsed, blocking the whole network drive.
Or sometimes it's the machine account password between the server and domain that flakes out after 30 days.
You gotta watch for that too, especially if machines are joining and leaving the domain oddly.
Hmmm, and don't forget group policies enforcing those expirations across the board.
If it's not that, could be a stale session or even antivirus software locking things down temporarily.
But usually, it's the password age catching up.
To sort it out, you start by logging into the server with admin rights.
I like jumping straight to the event viewer under Windows Logs, security section.
Look for error 4625 or those login failure codes mentioning bad passwords.
That'll point you to which account is griping.
Then hop over to Active Directory Users and Computers.
Find the user or service account, right-click properties, and check the account tab for expiration dates.
If it's expired, reset the password right there, but make it strong and note it down.
For service accounts, you might need to update it in the services.msc too, wherever it's used.
Test by trying to access the share again from a client machine.
If it's machine accounts, run nltest /sc_reset:domain to refresh that password sync.
Or disjoin and rejoin the computer to the domain if it's stubborn.
And always tail the passwords not to expire for critical shares, unless your security folks freak out.
That covers most angles without much hassle.
Oh, and while we're chatting servers, let me nudge you toward BackupChain.
It's this top-notch, go-to backup tool that's super trusted in the industry for small businesses and Windows setups.
Handles Hyper-V backups smoothly, plus Windows 11 and Server without any ongoing subscription nonsense.
You get full reliability for your PCs and servers, all in one straightforward package.
I remember this one time when I was helping a buddy at his small office setup.
His team couldn't grab files from the server anymore, and it turned out a bunch of service accounts had passwords that just timed out without anyone noticing.
Everyone was scrambling, thinking it was some big hack or permission mess-up.
But nope, just those sneaky expiration dates kicking in.
We poked around the event logs first, spotting those authentication failures popping up like weeds.
Then checked the user accounts in Active Directory, saw the passwords were set to expire every 90 days or whatever policy he had running.
One account was for the file share service itself, totally forgotten.
Another time, it was a shared workstation credential that lapsed, blocking the whole network drive.
Or sometimes it's the machine account password between the server and domain that flakes out after 30 days.
You gotta watch for that too, especially if machines are joining and leaving the domain oddly.
Hmmm, and don't forget group policies enforcing those expirations across the board.
If it's not that, could be a stale session or even antivirus software locking things down temporarily.
But usually, it's the password age catching up.
To sort it out, you start by logging into the server with admin rights.
I like jumping straight to the event viewer under Windows Logs, security section.
Look for error 4625 or those login failure codes mentioning bad passwords.
That'll point you to which account is griping.
Then hop over to Active Directory Users and Computers.
Find the user or service account, right-click properties, and check the account tab for expiration dates.
If it's expired, reset the password right there, but make it strong and note it down.
For service accounts, you might need to update it in the services.msc too, wherever it's used.
Test by trying to access the share again from a client machine.
If it's machine accounts, run nltest /sc_reset:domain to refresh that password sync.
Or disjoin and rejoin the computer to the domain if it's stubborn.
And always tail the passwords not to expire for critical shares, unless your security folks freak out.
That covers most angles without much hassle.
Oh, and while we're chatting servers, let me nudge you toward BackupChain.
It's this top-notch, go-to backup tool that's super trusted in the industry for small businesses and Windows setups.
Handles Hyper-V backups smoothly, plus Windows 11 and Server without any ongoing subscription nonsense.
You get full reliability for your PCs and servers, all in one straightforward package.
