Forum:Disconnect when uploading

I currently using huawei e303 modem,

this problem started about three weeks ago, every time I uploading something (image, files, etc) on the internet even though just 100 Kb image, it always disconnect me from the internet.

this really frustrating for me since I really need to uploading files for the sake of my assignment.

first I thought the problem was on the SIM Card but since I already tried to upload with different card and I still can't uploading, moreover my SIM Card works just fine with my friends modem. So I guess the problem is on my modem;

I've tried to change the browser even on different operating system (WIN 8 and WIN 7) but no avail.

My Laptop also could be used for uploading files when I'm online with WiFi connection.

This pretty much convince that the problem is on my modem

the I read this article  :

uploading things to the internet disconnects me

and some people find this answer helpful:

Same issue here. The reason for it is new network drivers. Control Panel > Network Connections > Local Area Connection > Properties > Configure > Driver > Roll back driver. I thought that my drivers were too old, so I have tried to downloaded the new ones, but it said that mine is up to date, so I did vice versa. Rolled back to old ones and "century of disconnection was gone". Hope it helps.

But then I realize that my modem is using HiLink technology which did not use the conventional driver but use browser to make the modem connected

So I can't  do the " Roll back driver." and I've tried it, no avail!

not that I'm sure it's the driver problem but maybe you could find this useful;

So please help me if you can do something about it; how can I restore my modem as what it used to be, when I can use it not only for downloading but also for uploading. Thanks in advance.