Uploading speed varies when using different browsers

I don't think it is a problem of the RadUpload control, but the OS + browser itself.

I want to upload a file at about 10MB.

1) when uploading via the LAN, using IE7 in Vista, the speed is very good.

2) uploading to the same server, but via the Internet (thus our firewall), using IE7 in Vista, the speed is almost...zero, then timeout.

3) uploading to the same server, via the Internet (again, through the same firewall), using Firefox 3 or Opera in Vista, the speed is about 50Kbps, which is acceptable.

I would like to ask if anyone has the similiar situation.  Or if it is my set up problem.

Raymond

Hi Raymond,

We had several customers complaining from similar issues before. The main point were either the network/firewall settings, or the browser settings. The best way to identify the reason for the problem is to start with a new PC, not using the firewall and apply the settings of the computer giving the problem to it one by one.

Let me know if I can help with anything else.

Kind regards,
Erjan Gavalji
the Telerik team

Just try IE7 on XP (with sp3) with speed 40kbps -- acceptable.

It seems to be IE7 + Vista (sp1) problem.

Hi Raymond,

You could check the client computer configuration then. Here is an article that might be of help:

How to disable Windows Vista TCP/IP auto-tunning ?

You could also ask your network administrator for some assistance on the matter.

Kind regards,
Erjan Gavalji
the Telerik team