Why is Wake on Ring (incoming fax should wake PC from standby) unreliable?

By glnz ·
When my WinXPPro SP3 machine is in sleep/standby/suspend mode (S1 or S3), the fax modem wakes the machine some of the time but not all of the time. I want it to wake the PC every time, with 100% reliability. (When the PC is up and running, the modem and the machine receive faxes beautifully.)

What do you suggest?

Fax Modem: Conexant D850 PCI V.92 Modem with recent driver update to version (7/3/2007) (but this problem is the same now as before with the 2004 driver version)

PC: Dell Optiplex 755

Processor: Intel Core 2 Duo E4600 @ 2400 MHz

RAM: 2GB, of which 1.4GB is usually free


OS: WinXPPro SP3 with all updates

AV: Avast Home Free

Anti-spyware: SpywareBlaster Free, Spybot S&amp Free and AdAware

Fax software: MS Fax Console that comes with WinXPPro SP3

Printer/Fax Printer: HP OfficeJet Pro 8500 Wireless AIO (model A909g)

Screensaver: XP logo after 9 minutes; do NOT show welcome screen on resume

Power Settings: Home/Office Desk; Turn Off Monitor after 10 mins; Turn Off Hard Disks Never; System Standby after 20 mins; System Hibernates Never; Do NOT prompt for password when computer resumes from standby

Home network Ethernet connection: Intel? 82566DM-2 Gigabit Network Connection card with all Wake on LAN settings ON.

Browser: Firefox latest but use IE occasionally when necessary

Email: MS Outlook Express 6 to POP3/SMTP email service

Misc: I also run LogMeInFree version 4 on all my home computers. Just very recently, I added Skype, so that's also running.


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RE: What do you suggest?

by OH Smeg Moderator In reply to Why is Wake on Ring (inco ...

Well even this will not Guarantee 100% accuracy but I would suggest turning off the Power Saving Options in XP and just leave the system running 100% of the time.

You don't need to worry about the Monitor as that can be turned off but from past experience I've found that if something goes wrong you may spend too much time messing around trying to get things working again.

XP and Hibernation are not the best possible and if you need something reliably it's best not to rely on the Hibernation Option in Windows.

Of course a Dedicated Fax Machine would be more reliable here but even then you can not guarantee 100% up Time even if it's on a high end UPS.


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