Acrobat 9 Pro update download problems

Question

Note: I recently hooked up a Samsung 830 128GB SSD to an old Dell Optiplex GX280. The OS is Win XP Pro. I've had issues running the Windows and Microsoft Update manually and had to resort to just using auto-updates (which for some reason works without problem).
I am unable to get updates for Acrobat from both the "Check for Updates" in Acrobat Pro and from the site. Pro's update option is just trying to download the updater. As for the site, it's from downloading any update from the download section for Acrobat.
In both cases, the download stalls itself at around 80-99.9% complete. I had no issues installing Acrobat 9 Pro. I noticed that before stalling, the download rate drastically drops before locking itself. So it might have been downloading at 900KB, when it hits around the 80% mark it'll drop to around 300KB and quickly drop further. It usually locks itself at 100-200KB/sec. Mind you, the download window or browser are not frozen. I can still interact with them without issues (I can download other things, browse pages, and cancel that locked download). The in-program updater might stall itself after I click cancel, but it usually functions properly by showing that window with options to take in canceling.
The one that stands out the most is the fact I can't download the updates manually. I've tried Firefox and Chrome, and both result in the same problem. I've also tried this with several update files. Oddly enough, it's only the update files that have this problem. I've successfully downloaded other files from Adobe like Flash and Reader X installer (which also downloaded and installed fine). The downloads I've done from other sites, like Malwarebytes, all downloaded and updated fine.
Is there anything I can do to fix this? I'm assuming it has a tie-in with my Windows/Microsoft Update problem. Thanks in advance.

Answer 1

Hi Bill, thanks for the reply. That page is actually what I was referring to by being unable to get updates from the site. I tried it again, following your link (just in case), and the problem still occurs. I'm looking at it right now and typing as I go (so things are being typed in as I see them), 88% of 1 file, dl rate of ~900KB/sec before that 88% and dropped to ~150KB/sec for maybe 30sec. It swiftly dropped further and is now 90% and "downloading" at 72.8KB/sec. I say downloading but it's actually just idling itself, as it did when it hit 88%. About 2-3min later, it is still at 90% and is stuck at 59.0KB/sec dl rate.
If this is similar to the others, it will eventually stall itself indefinitely. In the case of the previously mentioned attempts, several hours go by with no progress. The Windows/Microsoft Update problem, I left it running for about 6hrs with no progress at all.
Any advice on what to do would be much appreciated.