Ethernet stopped working today.

Today I started my PowerPC to send some emails and my Internet connection was no longer working.
I looked in the Control Panel "TCP/IP" and the "Ethernet" option was missing. The only two options I have are Apple Talk and PPP.
I got one error message about the "Ethernet" but did not write it down.
I've been trying to figure it out all day.
Does anyone have any suggestions?
OS 9.2.2
Open Transport 2.7.9
Thanks,
Mike

Hi, Michael -
Make sure the cabling between the Mac and the modem/router is secure, ditto from the modem to the wall (phone line or cable).
One experience I had years ago - one of my cats fanged the phone line going from the modem to the wall. The mark on the sheath was near invisible - replacing the phone cable and having it work lead me to examine the cable inch by inch until I found the break.
Make sure that both the extensions named Shared Library Manager and Shared Library Manager PPC are enabled (checkmarked) in Extensions Manager; ditto any extensions whose names include Open Transport or OpenTpt, and the extensions named Apple Enet and Apple Enet DLPI Support.
It can help to throw away the preference file named ASLM Preferences.
Restart after making any changes.
Make sure the modem or router (whichever is connected directly to the Mac) is on and warmed up before booting the Mac.
It can sometimes help to reset the modem. The quickest way to do that is to pull its power plug, wait a minute or so, then plug it back in. Some newer modems have a reset button.

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