Newbie question - TDM10B intereference

Got around to installing a Digium TDM10B Single FXS in my Asterisk this weekend, but found that I could no longer communicate through my ethernet port when I did so. Once I removed the card, Ernestine was back online and functioning properly, however.
Assume there’s something basic I’m overlooking here. Any suggestions?
Many thanks,

Your NIC and the PCI slot you are using for the card are probably riding on the same IRQ.
You should be able to see this in the BIOS setup of the PC. I “resolved” this by using a different PCI slot for my analog interface card.
Hope this helps.