Just over the last few days, offline files, which have been working reasonably well over the last several years for about 40 laptops, has started to fail. The specific error I get is 'Access is denied'. This is only when synching from the network to the laptop. So far, all are XP SP3.
When offline, users can no longer write to the offline drive, but do have read access to it. When they open a file offline and try to save it, they get the application's equivelant of "can't save/path/file not found".
When online, users can read and write to the network share as normal. Only offline, there is no write access (and therefore no synching from the network to the laptop). Looking at KB257839 which was informative, but didn't offer a solution.
Like I said, this just started happening on at least a dozen laptops (but not all at the same time, gradually over a few days), and there hasn't been any changes to network security. Access is Denied sounds like a security issue, but since we have read/write access while online, I don't think it is network security. Domain accounts are a member of the local computer's Administrators group, so again they should have full rights on the laptop so I can't believe it is a local security issue.
I reinitialized my offline files cache but this didn't fix the problem (and now I don't have even the read-only copy, as consistent with the problem).
No Windows updates were pushed out recently that may have caused this problem. I also performed a full virus scan (automatically runs each week on all laptops, but I also ran a manual scan) but it didn't produce any infections.
Anyone seen this behavior or can offer a fix?