Im sure everyone here has heard about this before. I have searched for days trying to find a solution, but just cant.

Before i begin, here is what i have:
20mb broadband
belkin n1 router
laptop (wireless g)
desktop (cabled)
ps3

Bassicly, the internet speed on my ps3 isnt all that sharp. When I download anything off of PSN, the speed is terrible. At this point, i was thinking yeah ok, maybe the psn network is beeing heavily used.
But to make sure it wasnt my internet connection, i went onto my laptop, and done a speed test. I got 1980kb/s download and 789kb/s upload.
Went onto the desktop, got the same results
I then went onto my ps3's web browser, and done a speed test. the result was 232kb/s download and 768kb/s upload.
I done this a number of times, all through the day. Result was always around 200kb/s download, and full speed upload.
I put the ps3 in dmz, disabled security, static ip's, setup everything! but still no diffrence.
So i thought maybe my ps3's wireless card is duff. so i cabled it up into my router. still the same poor speed. i even plugged the ps3 straight into my cable modem, but still no diffrence. i even setup a wireless sharing thing on my laptop. (internet>>router>>laptop>>ps3)
Still that same score around 200kb/s!
I have linux installed on my ps3, so i logged onto linux, and done the same speedtest a number of times.... 1897kb/s download, and 789kb/s upload. That was using a cabled connection into the router using dhcp. Done the same test, on linux, but using the built-in wireless, and got the same good speed as the cabled test on linux.
Can someone please tell me if i am doing something wrong. i feel like i have tried everything!

Have you tried updating the PS3 Frimware?

Have you tried updating your routers Frimware?

Have you tried a diff router?

Have you tired directly connecting your ps3 into your cable modem?

PS3 firmware is the newest one (2.30 i think)

Yes, router firmware is upto date

Yes tried a linksys wrg54 but still does the same

Yes i have tried cabling it into my cable router, still rubbish speed.
Thats what i dont understand. When it is cabled straight to the router, there is no diffrence. But if i cable it up but use linux, the internet/speedtests run at full speed.

Thanks for reply though mate

Have you tired surfing the internet on your PS3 browers and going to a bandwidth test site and see what your bandwidth reading is using the ps3 browser?

Yes i have. Youtube takes alot longer to buffer on my ps3 than my laptop or desktop.

I just done another speedtest using the ps3 browser, and i got 221kb/s download, and 749kb/s

Cheers

Have you tired putting the PS3's IP address in the DMZ section in your router settings?

If you don't know what a DMZ is this explains it and how to get to it in your router.

http://hoople_ny.tripod.com/dmz.html

It's the moden router itself that is blocking the PS3's IP address making your PS3 run slow.

From what i got is that you have a wireless router that connects to a modem router. You haven't tried connecting it to a straight modem that doesn't have a router on it have you? because if you have then your ps3 would be going as fast as your other connections, but for some reason your modem router is blocking the PS3's IP address. So we can eliminate your wireless router, because from my understanding you tried to hardwire it straight to your modem router and it's still doing it. It's most def the modem router settings.

I set the playstation a static ip, and put that ip into the dmz, so yes i have.

I havnt got a modem-router combo. I have cable broadband so i have a dedicated modem all together. my setup goes like this:

internet>>>cable modem>>>router>>>ps3

I have tried plugging the playstation directly into the cable modem, which would cancel out the router all together, but i still got the same, 200kb/s slow speed.

So it cannot be the router. I just dont understand it. It cannot be something wrong with the ps3, becuase i have linux installed on it, and downloads download on that super fast.

Do you think it could be something wrong with my ISP? maybe blocking the ps3 or limiting it?

Ok now that we cleared that up that you indeed have a cable modem, and not a cable modem router.

Has this always been like this since day one when you got your system?

Did this start after you installed linux on it?

I don't think it's a bandwidth limit from your ISP because you tried to connect the ps3 directly to your modem with nothing else connected and it was still giving you low speeds.

When i 1st got my ps3, i had 2mb internet. that worked fine. full speed all the time (210kb/s roughly)
I then upgraded to the 20mb internet. laptop and desktop both get fast speed, but the ps3 only 210kb/s
its acting like it is still on 2mb internet!

Also, as soon as i got my ps3, i installed linux staight away, so i had 2mb when i done that. Do you think that maybe linux has something to do with it?

I think it very much could have something to do with it, because there is nothing that we haven't went through that should be causing this problem. If you take your ps3 somewhere else say a friends house with a broadband connection and it's still giving you only 210kb then it's def your ps3 and i'd bet linux is causing the problem.

You can always try removing the hard drive and then turning on the ps3, you don't need the hard drive to start the ps3 because the ps3's menu is programmed into the Bios chip inside the ps3. So i would try that and then see if your sppeds change, if it does then you found your problem, it's linux.