Opened 12 years ago
Last modified 10 years ago
#10034 closed defect
Slow upload on a NATed Windows XPSP3 guest — at Initial Version
| Reported by: | alt236 | Owned by: | |
|---|---|---|---|
| Component: | network/NAT | Version: | VirtualBox 4.1.6 |
| Keywords: | Cc: | ||
| Guest type: | Windows | Host type: | Mac OS X |
Description
Hello!
I am having some problems with a Guest XP SP3 VM.
Even though the download speed on the NATed interface is reasonably high, but the upload speed seems to be capped at about ~50Kb/sec, works in bursts and eventually hangs. It seems to be worse when FTPing a large number of files in succession.
I've tried the same VM under a MacOS and a Linux host with the same results.
The moment I switch from NAT to a bridged interface, the upload speed returns to a reasonable level.
I disabled the QoS scheduler from the Guest's network interface with no results. I also tuned the TCP buffer with no effect.
There have been some similar problems in the past (not sure if they are related): https://forums.virtualbox.org/viewtopic.php?f=2&p=154844
https://www.virtualbox.org/ticket/1656
https://www.virtualbox.org/ticket/3400
Many thanks! Alex
