I've started having issues where the active document becomes read-only / write protected... While already open in my current session (you can actually see the lock symbol added to Drawing tab)... Completely killing productivity today.
I've read through this:
http://knowledge.autodesk.com/support/autocad/troubleshooting/caas/sfdcarticles/sfdcarticles/Error-Cannot-save-the-drawing-path-filename-dwg.html... And verified that it's not NTFS/Share permissions, or Antivirus (I've both added file extensions to preclude, and it is currently disabled), and first saving local then saving to network works fine.
We installed a brand new Gigabit switch, at the same time as our new Server +/- 1.5 years ago, and there's been no infrastructure changes recently... Despite that, network lag is seemingly the only logical cause.
My workstation has worked fine since the network upgrades, but I did just have an MOBO issue - Dell took me through the BIOS to verify some settings, and we found that it was configured for 32-bit environment, despite shipping with Win8.1x64 + 32 GB RAM, etc. Grrr
It ended up being a MOBO issue nonetheless; Dell sent a replacement, I swapped it out, and modified BIOS for 64-Bit environment, switching from 64 PCI Buses to 256, etc. and my workstation performs better than ever now.
Current specs: Win10x64, Hex-Core Xeon E5-1650, stock Dell SSD (OS, Non-RAID), 32 GB RAM, 3 GB NVIDIA Quadro K4000, Gigabit NIC
Is it possible that my workstation is simply ready to overwrite the source .DWG file before the rights have been removed following the .BAK, .TMP, etc. file creation? I'm listed as the drawing owner in .DWL* files.
Anyone else know how to diagnose / correct?
[Edit] - I've been running this setup, working on the same project drawings for more than a week now, without issue. This undesired behavior just started today.