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Internet connection failure Power Mac G5 (tower)

Internet connection fails via HS cable to modem to ethernet configuration
G5 2.5, OSX 10.4.11, Safari .... also tried Firefox
Cable installer technician made several attempts to configure Network System Preferences
All wires and external modern are new
I am still able to connect to internet via phone; Dial up

Two PC laptops connected successfully via same HS cable to modem to ethernet config
Connection with laptops required only resetting modem, without Network System Pref adjustments

G5 2.5, Mac OS X (10.4.11)

Posted on Aug 9, 2010 9:23 AM

Reply
13 replies

Aug 9, 2010 9:52 AM in response to skazac

Hi skazac, and a warm welcome to the forums! 🙂

Is that Interface dragged to the top of Network>Show:>Network Port Configurations and checked ON?

Then... Try putting these numbers in Network>TCP/IP>DNS Servers, for the Interface you connect with...

208.67.222.222
208.67.220.220

Then Apply

At the Apple Icon at top left>About this Mac.

Then click on More Info>Network, then click on the Ethernets on the right, any info there?

Aug 10, 2010 3:22 AM in response to BDAqua

Internet connection failure Part 2: Power Mac G5 (tower)



Thanks for the welcome and your assistance




About This Mac > More Info... > Network
Lots of data here, seems to match info:
System Prefs > Network > Built-in Ethernet >TCP/IP


Network > Network Status
• Built-Ethernet : Built-in Ethernet is currently active and has the IP address
71.239.164.212. You are connected to the Internet via Built-in Ethernet.

Safari :
sits blank to any http typed, with progress bar frozen

You are not connected to the Internet.
Safari can’t open the page “ http://www.google.com/” because your computer isn’t connected to the Internet.


.... Activity Monitor reads: 2.35 KB/sec ( and is fluctuating ) to 6.88 KB/sec



Assist me .... > Network Diagnosis
Network Status ( all LED are green )
• Built-in Ethernet
• Network Settings
• ISP
• Internet
• Server

Proceeding through the navigation buttons, all is Green
Final Message Reads: Your Internet connection appears to be working correctly.


.... Activity Monitor reads: 2.56 KB/sec ( and is fluctuating )



Network Utility > Ping test
.... 10 packets transmitted, 7 packet received, 30% loss


I tried installing an Ethernet card into expansion slot,
absolutely No Response ( blank read-outs) in System Prefs > Networks < TCP/IP
• Encore Electronics ( $ 20.00 returnable )
• ENL832-TX-EN
• 10/100 Fast Ethertnet Network Adapte

Aug 14, 2010 8:16 PM in response to skazac

I don't think that buying a USB/Ethernet adaptor resolves the issue of your ethernet not working.

I suddenly am having the same problem with my dual 2.5 G5. I've run TechTool Deluxe and don't have any errors to report. However, the ethernet port is simply not working. I haven't changed anything on my network. I can't even connect to the router. All other networked devices are fine.

Aug 31, 2010 4:33 PM in response to Donovan Kruger

Me too! I've been trying to figure out why it suddenly stopped recognizing that it's actually connected to internet (I get a green light for built-in ethernet connection) but safari says that I', not connected.

I thought it must be because I'm running Mac Leopard Server software on it, but this has been installed for past 3 years and has always connected no problem.

Message was edited by: DelSF

Sep 9, 2010 6:37 PM in response to DelSF

I thought I was losing my mind. I too cannot connect to the Internet. Got a G5 donated and bought a USB wireless adapter to eliminate a long ethernet cable across the room. Followed all the specs and procedures, got a connected green light on the network presences as well as all green lights and connections with the wireless USB. Set up manual settings with DHCP and get a green connection, green network, and even green ISP. But cannot connect to Internet. Mac Mall is telling me that the USB is defective but I think not.
Then I decide to run a 25' ethernet cable across the room and again, same thing! Green lights and connected status but cannot connect to Internet. I do not know what to do.

Internet connection failure Power Mac G5 (tower)

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