Hello Guys,
it seems this is really caused by the nature of the WebShield implementation. The super-fast upload phase is caused by the fact, the until avast buffers are filled, the data is consumed by WebShield, scanned and then passed onto the network. There the speed should be appropriate to your network speed, however since the application (dropbox) has already sent quite a lot of bytes, it would seem as stalled for a while. In total, the speed shouldn’t be affected, the total time should be the same, however you could see these super-fast bursts. We haven’t experienced any complete stalls or aborted uploads though. We will look into this and post you soon.
Just posting to confirm the same problem with Dropbox (version 2.4.11) and the latest version of AVAST. Disabling the Web Shield fixes the problem. Also I tried to test Lukor’s statement that in the long run there should be no difference in the total time of uploading, I tried with a 50 mb file, it never got uploaded with the Shield on, so the problem is there for good.
Hopefully you guys at Avast will fix this, you have a great product so the skills are there
I also confirm what Hemispasm said: The upload time with Web Shield on is NOT the same as with Web Shield off: It either doesn’t get uploaded at all or after a MUCH longer time as with Web Shield off. It’s not just a problem of Dropbox reporting wrong upload times because of a packet buffer, Web Shield actually appears to block the uploading in some way. I’m really kind of disappointed here, avast! 2014 seems so buggy compared to the previous version
I agree there needs to be more work done with the new web shield. New features have to be deployed but it would be good if they where tested on different network environments before pushing out new updates. I am currently waiting for AVAST to fix this. Its reducing my productivity and Ive been unable to upload content. Hopefully we can get this fixed soon.
Still having problems with uploading even switched to proxy mode to no avail. Clean install of beta didn’t fix the issue it’s down to a hardware buffering issue with the windows API and the implementation of it. Avast’s shields assume you have a fast enough connection to buffer all the web requests when uploading files. Would be good to get an update on what’s happening at Avast.
However, I am currently running the latest beta version and when I tried to update it shows I have the latest version. Should I perform a clean full installation of the latest version available for download at the Avast website (which version would that be btw?) or is this fix available only as a partial update?
Just did a clean install of the new avast and I can confirm that the dropbox issue is now gone.
Thank you all at Avast for jumping quickly onto this issue - comes to prove you’re doing a great job! And thanks to all the people that invested the time and effort to report and help others in this thread, much appreciated.
I downloaded the newest Avast update this weekend (2014.9.0.2016) and this appears to be a problem again. I had a file try to sync last night before going to bed, and realized this afternoon that it was still going and my connection was super slow. Looks like this bug is back again.
I have Win7 64bit + Dropbox 2.6.26 + Avast 2014.9.0.2016 [all full updated!] and a lot of synchronized file (more than 10GB).
The problem is that Dropbox is hanged with less of 20 files to be synchronized (less than 200MB) but in more than 10 days it was not able to complete the process!
And the ADSL Bandwith is more or less fully wasted!
The problem started with the previous release of Avast and the update had no effect. Also the temporay deactivation of Avast seems to be useless.
I have performed all the suggestion from the Dropbox help, but no effect!!!
Adding *dropbox.com to the exclusion list doesn’t help, nor does actually closing Dropbox or temporarily disabling the web shield. It seems that once you try to synchronize a file, the process can’t be stopped without a restart of the computer. My bandwidth usage was CRAZY yesterday. What can it possibly be uploading when Dropbox is closed? I notice my Avast icon in the system tray going nuts but I don’t understand what data is even being transferred, or why it would be.
I was advised by Avast support to try a repair of Avast and if that doesn’t work, a full uninstall/reinstall. I don’t expect either of these things to work, but I’ll try it later this week or this weekend and update this thread.
I am disappointed to tell you that I have already performed all the steps suggested to you by Avast Support but, as you already imagine, without success!
Today there is a new Dropbox version (2.6.27).
This evening I will try it.
And I will upgrade this item.
I’m really kind of disappointed here, avast! 2014 seems so buggy compared to the previous version