Doubling bandwidth with 2 ISPs

For about another week I'll be connected to 2 providers simultaneously from home.

I thought this could be a great time to double my bandwidth (I have ADSL + HSDPA) thanks to the fact that my computer has 2 cards, each connected to one of the routers.

I'm simply excited about the idea that I could use JDownloader to download twice faster.

The problem is that even if both connections are active, Windows always prefers 1 network card, specifically the HSDPA router that is currently connected over a Gigabit ethernet cable instead of the ADSL (5Mbit/s) connected over a regular 100Mbit Ethernet.

Do you know a way to tell Windows (or eMule and JDownloader separately) to open connections on both hardware network cards for any destination and balance traffic instead of preferring a single card only?

usr-local-ΕΨΗΕΛΩΝ

Posted 2012-06-10T19:44:43.993

Reputation: 3 733

OK I said "doubling" in my title. I know that HSDPA + ADSL != 2xHSDPA but I gave the idea ;-) – usr-local-ΕΨΗΕΛΩΝ – 2012-06-10T19:45:40.483

do you have a router? what is the brand/model? Routers decide the path, computers/switches/hubs do not. – Logman – 2012-06-10T19:56:02.233

http://www.google.com/search?q=windows+7+routing – Ignacio Vazquez-Abrams – 2012-06-10T19:59:41.307

@Logman I have a TP-Link wireless router connected to ADSL and to card 2 of my Windows host, and a Huawei router provided by my second ISP with a backup USB dongle inserted in it (in case ADSL doesn't work). The TP-Link router has only 1 WAN interface, so there is no routing choice ;-) – usr-local-ΕΨΗΕΛΩΝ – 2012-06-10T20:02:51.007

Lookup changing metrics. I'm on my cell so I can't describe it enough to be an answer – Canadian Luke – 2012-06-10T20:03:05.563

Answers

I can't try it out myself since I don't have a second internet connection at hand, but OCTOPUS+ seems to be exactly what you're looking for.

From their about page:

[...] OCTOPUS+ will help in utilizing all the active internet connections available in a computer. OCTOPUS+ will intelligently manage the traffic between a computer and the internet among the available active internet connections. [...]

This should automatically boost all multipart downloads.

A license costs USD 29.99, but you can download a free 30-day trial from CNET.

Dennis

Posted 2012-06-10T19:44:43.993

Reputation: 42 934

Manual way for JDownloader, just for the sake of sharing (I won't accept this answer)

In general, when you are connected to 2 ISPs with 1 favourite by Windows: disconnect favourite provider, start downloads (you need a premium account to start multiple downloads), once they are started connect the other card and from JDownloader windows double the number of concurrent downloads/connection.

It helped me go from 315KBps to 800KBps+

usr-local-ΕΨΗΕΛΩΝ

Posted 2012-06-10T19:44:43.993

Reputation: 3 733

If there is no better answer over the next couple of days, there is nothing wrong with accepting your own answer. – Xavierjazz – 2012-06-10T20:37:21.103

I don't like "manual ways of doing things" :-) – usr-local-ΕΨΗΕΛΩΝ – 2012-06-10T20:43:57.367

You can offer a bounty, but I'd wait. – Xavierjazz – 2012-06-10T21:01:56.907