Can't connect to internet via Intel Core 2 Duo

I have a 2.4GHz Intel Core 2 Duo running MacOS X 10.6.1
I have a cable modem that usually runs to a Linksys Cable/DSL Router with a 4 port switch. Then I run a hard line to my Time Machine that I use for wireless while another line runs to a PC desktop.
We had a power surge and since then only the PC has been able to connect to the internet. Even if I bypass the Time Machine and Linksys and run a cable directly from the cable modem to my Macbook, I cannot connect to the internet.
I have been on the phone with Time Warner and they say that it's not an internet problem, but a problem with my Time Machine and laptop.
I usually can get around my computer pretty well, but I cannot figure this out.
If anyone has any ideas on where I can start, I would appreciate it.
Thanks

laura1107 wrote:
I have a cable modem that usually runs to a Linksys Cable/DSL Router with a 4 port switch. Then I run a hard line to my Time Machine that I use for wireless while another line runs to a PC desktop.
We had a power surge and since then only the PC has been able to connect to the internet. Even if I bypass the Time Machine and Linksys and run a cable directly from the cable modem to my Macbook, I cannot connect to the internet.
That may be because you need to cycle power on or otherwise reset your cable modem. Many of them will "latch onto" whatever device is first connected to them and will need to be reset to connect to anything else.
I have been on the phone with Time Warner and they say that it's not an internet problem, but a problem with my Time Machine and laptop.
I'd try connecting your Mac to the Linksys Ethernet port that works with the PC. (Be sure that you have Ethernet enabled in the Network panel of System Preferences.) If that works, try all the other Linksys LAN ports.

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