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| Author | Built-in ethernet for Power Macintosh 7200/75 doesn't work (Read 131372 times) | ||||||||||||||||||||||||||||||||||||||
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ShinobiKenobi
256 MB  Posts: 362 System 7 fan 
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on: August 23, 2025, 09:06
I've been using an Asante Friendly Net AAUI ethernet adapter so far on it. Because for some reason, even on my 7200/90, the built-in ethernet just doesn't work. I read that there was a problem, acknowledged by Apple specifically for the 7200/90 ONLY (here's the article, modern browser), but that wouldn't explain it for the 7200/75. It is running 7.6.1. When I go into the TCP/IP control panel, and then click the info button, it doesn't show any information about that network interface. This Macintosh: < not available > Hardware address: < not applicable > Router: < not available > Open Transport: 1.3 TCP/IP: 1.3 The Ethernet (Built-In) extension is version 1.0.4 EtherTalk Phase 2 2.5.7 Network Extension 7.5.5 Open Transport Library 1.3 OpenTptInternetLib 1.3 TCP/IP Control Panel 1.3 Does anyone have any ideas of what might be going on? Thanks  Update: When I toggled some settings, I actually got a MAC address (hardware address) when I went back into the TCP/IP control panel this time. It's the same MAC address that it has with the Asante Friendly Net adapter. |
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Last Edit: August 23, 2025, 09:56 by ShinobiKenobi
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Bolkonskij
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Administrator 1024 MB  Posts: 2023
Reply #1 on: August 24, 2025, 17:22
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Ok, my first thought (and you didn't mention this in your otherwise very detailed report!) - did you open the AppleTalk control panel and check if it's still set on the modem or printer port? If so, set it to Ethernet / Other Ethernet (whatever the name) and try again.
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ShinobiKenobi
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256 MB Posts: 362 System 7 fan
Reply #2 on: August 25, 2025, 02:29
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@Bolkonskij I made room on my computer desk for it, and since it's away from the LC III, I disabled AppleTalk. I think I left it set to the printer port. But I wouldn't think that it would try to do AppleTalk stuff if it's inactive But weirder things have happened. XD I'll enable it just to see for sure. You got me curious now hehehe. Update: Yeah it was still set to the printer port. When I tried to set it to ethernet, it hung up for about 4 minutes displaying "Getting port information..." where the value should be for "Current Zone:" When it snapped out of it, an error message came up. It said "An error occurred at attempting to use Ethernet. Make sure your network connections are correct."
Last Edit: August 25, 2025, 02:40 by ShinobiKenobi
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ovalking
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128 MB Posts: 199
Reply #3 on: August 25, 2025, 10:54
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Hmm, sounds a bit odd, but there may be some workarounds. What's it plugged into the other end? Try another port or router. Are you using DHCP? Set IP settings manually instead. Does it still say 'not available'? Can you ping anything? Is the Asante card causing some odd conflict? Any change with it removed?
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ShinobiKenobi
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256 MB Posts: 362 System 7 fan
Reply #4 on: August 26, 2025, 03:08
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The Asante Friendly net adapter isn't plugged into the computer. I read that the AAUI jack and the ethernet jack can't both be used at the same time, so I unplugged the Asante FN adapter. I could try an old router, but I have everything else (all my other devices) configured for the current network setup, so replacing it with a different one isn't an option. But it still may help in troubleshooting, so I'll try that. I usually have everything set to DHCP. When I tried manually setting it to an IP address, one time it showed up in the router control panel as being online, but the computer acted like it wasn't connected. Then it disappeared from the list of online hosts on the router. The Asante FriendlyNet adapter is a dongle, not a network card. It might be helpful if I provide a link to a picture of it so that there's no confusion. Picture of the type of Asante FriendlyNet adapter I was using
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ClassicHasClass
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32 MB Posts: 39
Reply #5 on: August 26, 2025, 04:13
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The AAUI adapter and the built-in Ethernet *should* have the same MAC because it's the same NIC presented on two different ports. AAUI is just AUI in an Apple-specific form factor and different voltage and the MAU is on the dongle; the 10BaseT port has the MAU on the logic board. As such, there is no advantage to using the built-in Ethernet except to get rid of the dongle -- they are exactly the same and run at the same speed. Most likely you simply have a busted 10BaseT port. If the AAUI dongle works on your network, the 10BaseT port should also work with the same cable connected to the same port on your router or hub unless it's just plain shot.
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ovalking
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128 MB Posts: 199
Reply #6 on: August 26, 2025, 11:44
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> Asante FriendlyNet adapter is a dongle My mistake from not reading carefully. I agree with ClassicHasClass, probably not worth spending any more time on it if you can use the AAUI. Still recommend manual IP configuration though for easier troubleshooting. s
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ShinobiKenobi
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256 MB Posts: 362 System 7 fan
Reply #7 on: August 27, 2025, 01:44
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@ovalking No worries! In the past (on Windows computers) when I manually specified an IP, it caused problems, and was easier just to use DHCP, so the habit has stuck. But I tried it even with manual assignment, and it didn't solve the problem. @ClassicHasClass Hi Classic, thanks for your reply. You're right it's the same adapter electronically as far as the logic board is concerned. My two reasons for trying to get the built-in ethernet jack working were: 1. To eliminate the need for a dongle. 2. To figure out if it could be fixed. I don't really mind using the dongle that much, except it would look neater if the built-in ethernet jack worked. One thing I didn't think about mentioning earlier is that the green/yellow LED on the switch turns on for that port when the computer is on regardless of whether the ethernet cable is plugged into the dongle or the built-in jack. I still need to try an older router, but I don't think it will matter, since I tried it years ago with the same result. But you never know!
Last Edit: August 27, 2025, 01:51 by ShinobiKenobi
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eelco
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32 MB Posts: 41 System 7 Newcomer!
Reply #8 on: September 03, 2025, 11:14
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To add to ClassicHasClass' statement, you should try and find a switch that has status LEDs for link, connectivity and speed. Most switches you can find (and some routers too) will have at least the first two. Should you connect the onboard Ethernet port and no lights show up on the switch, switch to the Asante-dongle. If the lights then show on the switch, the on-board port is damaged and will probably never work again. Make sure the machine is on, when you perform the test. Older computers have a habit of initializing the network card only when the driver is loaded and/or enabled.
Last Edit: September 03, 2025, 11:16 by eelco
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ShinobiKenobi
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256 MB Posts: 362 System 7 fan
Reply #9 on: September 03, 2025, 21:37
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@eelco I don't really want to buy another switch just to troubleshoot it. My netgear switch is good. The built-in port is bad. I have no problem using the dongle.
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