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I recently installed Fedora Core 2 on two of my machines, and I have been having trouble accessing the internet. Some web pages won't load and will display "operation timed out" messages in Mozilla, but other pages will load (slowly). I tried these same web sites on my Windows XP machines and on the Fedora Core 2 machines at the computer lab at my college, and those sites came up fine. My computers are not connected to the campus network.
My internet access is through an ADSL modem. The modem has a built-in 1-port router, which is connected to an eight-port switch. Both the Windows and Linux computers are connected to that switch. Also, I can ping the router without problems from the Linux machine.
No passwords or usernames need to be entered on the individual computers to access the internet connection; that configuration is done in the modem's setup interface.
I have the Linux computers set up to get their IP addresses through DHCP. I set the hostname manually on one, and I set up the other to get its hostname through DHCP. That one is using the default hostname, "localhost.localdomain".
Here is the configuration information for one of the Linux machines:
AthlonXP 2400+ CPU
ECS K7S5A 3.1 mobo with latest BIOS and onboard LAN
256MB PC2100 DDR SDRAM
60GB Maxtor hard drive
Fedora Core 2 Linux OS
I booted up the Fedora Core 2 computer mentioned in my above post with a Knoppix 3.4 (5/17/04 build) CD, and it could access the internet sites which don't work when the machine is running Fedora Core 2. I guess this means that my network isn't the problem; it's a problem with the configuration of Fedora.
I noticed that it often works with parts of one site while not working with other parts of the same site. For example, it will load www.stanford.edu while it won't load folding.stanford.edu, and it will load wiki.linuxquestions.org while it won't load www.linuxquestions.org.
I also tried Fedora Core 3 (Test version 1) with the same results.
I don't have an answer, but I'm having what sounds like the same problem with Fedora Core 2 through my Adelphia Powerlink Motorola Surfboard cable modem and D-Link 624 router. Running ifconfig shows a lot of frame errors. I've scoured the 'net but so far haven't been able to find an answer. My windows box runs as expected through the router.
The FC2 box runs fine if I connect it directly to the modem; the problem is when it goes through the router.
I've switched out cables, tried different router ports, etc.- I don't think it's a hardware issue. The linux firewall is disabled.
I'm buying drinks for whoever can figure this one out!
I did finally fix my machines; it turned out to be a router problem. For some reason I still don't know, the Linux machines didn't work with the router which is built in to my ADSL modem. I connected a D-Link router I had lying around to the ADSL modem's built-in router (that's the way it has to be connected) and connected both the Windows and Linux computers to the D-Link. Now, everything works fine. I still don't really understand why, though. Maybe your router is setup incorrectly or just doesn't like Linux for some reason. BTW, the ADSL modem with the built-in router is made by Actiontec.
Just my thoughts...if YOUR ISP is running PPPoA/PPPoE, the router must match it to get connectivity through the Nameservers. In this case, "like begets like". We're used to "opposites attract" with music. If YOU'RE set up with PPPoA, the router is likely a newer version. If YOU'RE setup with PPPoE, the router might be factory set up for PPPoE.