Thinkpads Forum

Hi

I used to have 7.04 on my T23 and it worked fine. I decided to upgrade to 7.10 and can't get the ethernet network to work fully.

I can ping another machine and telnet to another machine (either local or on the internet) but that's it, I can't get on the web or email etc.

With 7.04 ethernet works fine, just not with 7.10 or later, any ideas ?

Static IP or dynamic one for your LAN connection?

ajkula66 wrote:Static IP or dynamic one for your LAN connection?

I usually stick to static addresses, I have just tried using DHCP instead only to get the exact same problem

Thanks for your suggestion...

Given up, fed up, gone back to 7.04

Sure it wasn't DNS (/etc/resolv.conf)? Did you telnet and ssh to domain names or ips on the internet?

lightweight wrote:Sure it wasn't DNS (/etc/resolv.conf)? Did you telnet and ssh to domain names or ips on the internet?

Fairly sure, I always use ip addresses on my local net, but I did try both names & numbers on the internet to no success, I never thought to try http on my local net. I'll have a play with a live cd later...

Just tried 8.04 live CD, I can http on my local ethernet but no joy on the WWW. I set my dns as the router I use to get on the internet and secondary to my isp's dns.

For clarity, you did successfully ping and telnet to the Internet, correct? I've not hunted for bug reports or anything on Ubuntu's 8 but it's an interesting problem since, as you know, http/:80 is just a TCP connection, like your telnet sessions to the Internet. There's definitely no proxy (such as Squid) on your network, correct?

Could just isolate to narrow your search. See if you can get out over port 80. There's better tools for this (netcat, dig, nmap, etc) by the way, but using old standards as I'm not sure what's in Ubuntu's base.

See if you can go out on the internets on port 80: If not, you're probably looking at a firewall or proxy issue, but if no dice see if it's DNS by quering your local dns server then a machine on the intarwebs: And if local fails but the external doesn't, try changing /etc/resolv.conf. It also wouldn't hurt to turn off local dns searches while at it: You can edit or copy the file back later when done troubleshooting, or just grab a new dhcp lease.

Also isolate if its the browser: (I do not know which Ubuntu ships with.)

Aparently it's a problem with the ethernet driver module, e100, it's broke in the later versions of Ubuntu. Looks like I'm stuck using 7.04 for the moment.

I have now tried a Dlink pcmcia card, that uses a module called "tulip" I could connect to some websites, but not to others

I can also connect to one of the web servers on my local network (using the number address) but couldn't connect to the other web server

I'll gonna reboot now and try lightweight's suggestions.

Thanks for all the suggestions, since I'm using a live cd of 8.04, I can't save any of the output so I write it down and then have to reboot to connect to the internet to post this message, so a) its a slow way and b) apologies for any mistakes i make...

lightweight wrote:telnet forum.thinkpads.com 80

(and then nothing else happens)

lightweight wrote:nslookup forum.thinkpads.com

lightweight wrote:nslookup forum.thinkpads.com 4.2.2.2

lightweight wrote:sudo cp /etc/resolv.conf /etc/resolv.bak ; sudo perl -pi -e 's/^(search|domain.*)/#$1/g' /etc/resolv.conf

Didn't make any difference that I could tell

lightweight wrote:wget http://forum.thinkpads.com || curl http://forum.thinkpads.com[/code]

(and then nothing else happens)