USB Modem uses all resouces plugged

Hi

Does anyone have problems with the Asuscom 280st Passive ISDN USB modem? When plugged to the onboard Via USB controller it uses 80-90% resources (the mouse hardly moves). Has the latest drivers - no diff. Installed the newest Via 4.1 and USB 1.01 Filter drivers (and made sure they are loaded) also no diff. It only uses 7% bandwidth and very little power. Ran it off a Powered USB Hub - same.

Just baught a CMD PCI USB PCI Controller card (Yeah the modem is getting expensive now) and it uses 20% overhead now (at least the mouse moves). I tried some of the older Asus driver (and even Dynalink - they sell the same thing with a new label) but the drivers are so bug ridden (chronic line drops - system reboots) that they're just not usable.

I have 2 other USB devices USB Scanner and USB Webcam that works great for hours (NO overhead when plugged). Tried changing USB Controller driver to Standard USB COntrollers - also no change - this is def a the modem drver thats not working right. Also tested it on other machines (Intel USB - and it seems to run fine (5% overhead - I can live with).

Anyone have any idea why this is in WinXP on my machine? It runs with no overhead in Win2k - and seems to be stable.

I even downgraded my BIOS to a older version (ran out of options) and it seems very little better. So why is just this modem mucking up in just WinXP on this machine?

Any ideas are welcome.
Best regards
Debug

Not really sure, but it would help if we could see your system specs;)

Hi

Sorry about that: Here you go:

Its a Jetway board J791bsr2 with onboard sound disabled. @ 400 MHz
Pentium Pro
133MHz 256 Meg Ram
31 G IBM Deskstar / Quantum 4.3 Fireball
Zoltrix Phillips TV Tuner PCI
Media Forte Quad Sound/Radio Card Theatre PCI
PCI CMD USB Controller
Use onboard Via USB Rev 2 controller for:
Creative Webcam Go : Hewlett-Packard USB Scanner
HP CD Witer 7075i
!! AsusCom Modem USB 280st Passive (El CRAPPO) Also sold as Dynalink 280i and Askey (they just change the sticker)
Rockwell Askey 56k Com modem data/voice

Note: Asuscomm is the modem devision of Asus - they are not even answering my mail anymore. They made 37 driver verions (yes I tried and downloaded them all) before the got the constant line drops fixed - it lay in its box for 9 months after I baught it. It had an av. uptime of 20 mins (then crached with some of the nastiest USB total system crashes I've ever seen.

Now the resource problem in WinXP (think the USB suppost in WinXP is allot better) so less craches.

Another feature of this modem: It just stops transferring data after sometimes hours (buffers problem = might explain the high CPU usage - author constantly fixes some "Endless loop" - stays connected - but nothing goes through - weird - you can disconnect and reconnect OK - but its the same - you need to reset it manually *sigh*

Asus strips the release notes from the driver (I WONDER WHY) but Dynalink includes them - without the author's email address to my dismay. It reads like a battlefield:
"Fixed System crash when dialing"
"Fixed line drops in WinXP"
"Fixed endless loop ......arrrrgggg"
goes on and on: They should not release Alpha drivers (my opinion) with a device.

Basically the modem didn't have any working drivers for about a year - Don't know what you're supposed to use it for Linux?

When I wrote to Asus they only wanted to know where I got hold of "their" new driver (not released yet) (thank you Dynalink) and the release notes.

Asus usually makes good stuff but this is an abbaracement bigtime.

--- Can I start a "Anti-Asus" coalition?!

Only thing that might still be funny is that this sytem has a Pentium Pro chip on a PII adapter card - but it works great.

Don't know what else to try - or why it works OK on other systems

Any help is welcome - best regards
D

I'd personally see if you could try someone else's modem and see if that fixes it. Everything else looks good, far as I can tell.

Had same problem with Jetway External USB modem (Conexant chipset RHP56D) installed new drivers, bios updates, etc, but all to no effect, had to buy another modem (not USB) Seems to be a WinXP fault
with VIA Chipset M/Boards, Maybe Microsoft USB 2.0 Drivers will address the issue, but don't hold your breath.

Thank you very much for replying.

I have just about tried everything. It seems downgrading my bios to an older version (aaarggg 1988) saved about 5% resources. Or maybe its just my imagination.

I have tried so many things to get this to werk (mailed prob 50 email to manufacturers - opened the case and removed all the PCI board to see if its not anything else) even baught the powered hub, PCI USB controller -
I think Via just Sux bigtime. They release their filter drivers for just about everything they make - NOTHING works right. USB Filter AGP Filter, IDE Controller Filter.

I still fail to see why all other USB devices work 100% on here and this modem is just junk. I wont shift the blame like you suggest to M$ost - from what I've seen from the modem driver author and kind of bugs he releases - def his problem. There used to be a new driver version daily - but for some reason he stopped - I just need to sell it.

Thanks again - 20% overhead on a crappy 450 mobo is just to much.
Regards
D