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DViCO EP45 authentication failed

Posted on 2013-06-23
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Last Modified: 2014-12-27
I have a DViCO Fusion Dual Express Hybrid TV card installed in my desktop computer, which is running on XP SP3. Every now & then I turn it on & it says EP45 authentication failed. I’ve tried to find out but I’ve no idea what this means, perhaps an expert might know. If I turn the pc off & on again it fixes TV, but then there is no sound (on anything, Start Up, warning beeps, Winamp,) so the only way I can fix it is to ‘System Restore’. I hope someone can enlighten me.
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Question by:Rdrik
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13 Comments
 
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Accepted Solution

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☠ MASQ ☠ earned 500 total points
ID: 39272772
EP45 is a communication error the drivers can't open a connection to the TV card.
If you have the drivers you might want to try re-installing
http://www.avsforum.com/t/545967/dvico-fusion-5-hdtv-tuner/2280#post_10921125
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Author Comment

by:Rdrik
ID: 39277576
I used to un & reinstall DViCO & drivers on my other computer but I’m hoping not to have to do that as DViCO says to install the drivers without the card, then install the card & I can no longer stand. I wish I knew what was causing it. When it happens just switching on & off doesn’t work, I have to turn off, turn off power to the p.c. then the TV works but without sound; to get the sound back, I system restore; system restore on it’s own won’t fix the TV (authentication failed).
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Author Comment

by:Rdrik
ID: 39286502
I’ve been trying to find the cause, I kept trying DViCO after – switch to old pc (KVM), transfer files on USB stick, open email, use internet, watch video with sound, then I logged in to one site HTTPS & it did the authentication failed; I shut down the pc, on shutdown it said ‘The exception unknown software exception (0x40000015) occurred in the application at location 0x00473f86. Click on O.K. to terminate the program. I didn’t Click on O.K. because I was trying to write it down & it eventually went off by itself. I’ll try it again logged in to this site & tell if it happens now, No, it’s still working. Thanks
It happened again & I clicked O.K. there was another dialogue box beneath it which said (something like) (I couldn't count that many 0's before it went off by itself; next time I'll take a photo) exception (00000000) occurred in the application at location 00000000.
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Author Comment

by:Rdrik
ID: 39317898
It happened & the second message says – The instruction at “0x00000000” referenced memory at “0x00000000” The memory could not be read. Click OK to terminate the program.
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LVL 62

Expert Comment

by:☠ MASQ ☠
ID: 39318243
Errors like that are often simply down to poor programming of the drivers.  It may be that the security changes in XP's later Service Packs and the driver software are just not talking to each other correctly or you've something else sitting in the memory that the drivers are set to use. If DViCO still support the card perhaps they've got updated XP drivers?
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Author Comment

by:Rdrik
ID: 39332061
To help me to understand what is happening, I was hoping to be told what these mean, EP45 Authentication failed; On shutdown it said, ‘The exception unknown software exception (0x40000015) occurred in the application at location 0x00473f86. Click on O.K. to terminate the program, when clicked O.K., underneath was another dialogue box saying,  – The instruction at “0x00000000” referenced memory at “0x00000000” The memory could not be read. Click OK to terminate the program. It really doesn't help me, being given a message I don't understand & saying O.K.
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Author Comment

by:Rdrik
ID: 39380903
When it happens just switching on & off doesn’t work, I have to turn off, turn off power to the p.c. then the TV works but without sound; to get the sound back, I system restore; system restore on it’s own won’t fix the TV (authentication failed).  
On the 1st I restored but it didn't restore, I went to try again but it would no longer turn back to last month. I  rolled back the driver on Realtek HD, got sound, made a restore point, turned off & on, no sound; I system restored, no sound, it wouldn't roll back a 2nd time so I restored to the 1st, before I rolled back; then it would roll back again & I got sound again; as it mainly does the -authentication failed- when turned off & restarted, my solution is to leave the pc on 24/7.
I tried 'update driver' but it said it could not find a newer driver; I'm wondering if I downloaded the driver (so I could tell the p.c. where to look), deleted the driver & told the p.c. to replace it from the download? I am wary of doing things if I don't really know.
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Author Comment

by:Rdrik
ID: 39460348
Does anyone know?
   In the meantime I have removed the card, un & reinstalled the drivers, reinstalled the card & it still sometimes does the EP45 authentification failed & on shutdown it said, ‘The exception unknown software exception (0x40000015) occurred in the application at location 0x00473f86. Click on O.K. to terminate the program, I clicked O.K. & underneath was another dialogue box saying,  – The instruction at “0x00000000” referenced memory at “0x00000000” The memory could not be read. Click OK to terminate the program. ? I clicked O.K. & there were no more messages.
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LVL 62

Expert Comment

by:☠ MASQ ☠
ID: 39460440
No sure what else to add, your 0x40000015 error is  because a piece of Visual Basic code has caused an unhandled runtime exception.  Either the code was poorly written to begin with or changes in the operating system since the code was produced were not predicted by the programmer.  Either way without an updated version you are not going to get this fixed.  

The second pop-up window you see is called by the error handler but because the handler can't deal with the exception error the information about the memory locations is blank - it's kind of an automatic response to the fact an error occurred even though theres' no useful debugging information to display for you.
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Author Comment

by:Rdrik
ID: 39460636
Thanks for your quick response. What I can understand from your answer sounds right (I'm not an expert so I'll have to look up those terms). I just have an XP Pro OS with SP3 (surely MS wouldn't have poorly written code) & there's been no changes in the operating system.
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LVL 62

Expert Comment

by:☠ MASQ ☠
ID: 39460840
I doubt it's Microsoft's code, it's far more likely to be the drivers for the TV card or the utlities that are bundled with them to help with displaying the image.  If they were written for XP's original incarnation we're now at SP3 - lots of changes (mainly security) and lots of other third-parties have had to rewrite their drivers to work with them - I'm not sure DiVCO bothered.
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Author Comment

by:Rdrik
ID: 40519599
I've requested that this question be deleted for the following reason:

I fiiiiixed it by reinstalling the card after updating the drivers.
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Author Closing Comment

by:Rdrik
ID: 40519600
I was hoping for another way,  as with this card you have to remove it before updating/re-installing the dfrivers; as I can't stand up I'd have to wait till I could get someone to help me.
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