Can't connect to many sites in the internet

English Network/Internet
#1

Hi guys,

I recently installed OpenSuse 11.1 i586 in my notebook (Lenovo Thinkpad R61). rotfl!
Everything worked fine during installation except it failed when the system try to connect to SUSE repositories. After installation, I tried to browse some websites using Firefox and Konqueror. Most of websites are unreachable, only Google was browsed successfully. Pinging also failed, off course there was no problem in pinging Google. :frowning:

Well, I had tried to shutdown the firewall and disable IPV6 but the problem still occurs. I have DHCP in the version 4 and 6 option.

This is weird because when I use Windows XP there’s no such problem. >:(

I’m still new in Linux. Any help would be greatly appreciated? Thanks in advance!! lol!

#2

How machine connects to the internet? DHCP, DSL, WLan, Other?

#3

Switch your Firewall back on, it will not be causing the problem.

Having IPv6 disabled is probably the best option. I have.

As has been suggested, supply more info about your connection and if you are using your wireless - are you using networkmanager. And is this gnome or kde.

Make sure you actually have a connection. If a connection drops, it is possible for previously loaded pages to load whilst offline.

Open a terminal go su and do

lspci -v

post your eth and wlan info from that output

#4

Thanks for replying me guys! lol!

Sorry for late posting. I’m a bit busy these days.

This is the output from command “lscpi -v” for eth and wlan:

03:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)
Subsystem: Intel Corporation Device 1010
Flags: fast devsel, IRQ 17
Memory at df6ff000 (32-bit, non-prefetchable) [size=4]
Capabilities: [c8] Power Management version 2
Capabilities: [d0] Message Signalled Interrupts: Mask- 64bit+ Count=1/1 Enable-
Capabilities: [e0] Express Legacy Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq+ ACSVoil-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSVoil-
UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSVoil-
CESta: RxErr- BadTLP+ BadDLLP- Rollover- Timeout- NonFatalErr-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
AERCap: First Error Pointer: 14, GenCap- CGenEn- ChkCap- ChkEn-
Capabilities: [140] Device Serial Number d4-87-08-ff-ff-bf-1c-00
Kernel driver in use: iwl3945
Kernel modules: iwl3945

04:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5787M Gigabit Ethernet PCI Express (rev 02)
Subsystem: Lenovo Device 20d5
Flags: bus master, fast devsel, latency 0, IRQ 217
Memory at fe000000 (64-bit, non-prefetchable) [size=64]
Expansion ROM at <ignored> [disabled]
Capabilities: [48] Power Management version 3
Capabilities: [50] Vital Product Data <?>
Capabilities: [58] Vendor Specific Information <?>
Capabilities: [e8] Message Signalled Interrupts: Mask- 64bit+ Count=1/1 Enable+
Capabilities: [d0] Express Endpoint, MSI 00
Capabilities: [100] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq+ ACSVoil-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSVoil-
UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSVoil-
CESta: RxErr+ BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 14, GenCap+ CGenEn- ChkCap+ ChkEn-
Capabilities: [13c] Virtual Channel <?>
Capabilities: [160] Device Serial Number 4c-7f-bb-fe-ff-d3-16-00
Capabilities: [16c] Power Budgeting <?>
Kernel driver in use: tg3
Kernel modules: tg3

And this is the summary of my system:
Lenovo R61 (Intel Core2Duo T7100 1.83GHz, 1.5 GB RAM)
OS: - OpenSUSE 11.1 (kernel 2.6.27.7-9 i586)

  • Using KDE as desktop manager (ver 4.13 release 4.9)
    Connect to internet using wired connection via DHCP
    Using Network Manager instead “ifup”

Well, I’m sure that I always have a connection because I can check my new email in Gmail, and download the attachment.
I also experience that some website can be browsed for sometime then for another time they’re unreachable. In the first time, I thought perhaps this is caused by network load but why I can’t reach opensuse.org and many sites all the time. Not convinced yet, every time I experience such problem, I switch to Windows XP and the problem is gone.
Because of these facts, I conclude that the problem is not about the hardware or the network.

I had installed Ubuntu before and experienced the same problem. Hemm, working with Linux indeed need more patience. Well, I won’t give up yet.:slight_smile:

I understand that Windows and Linux in many ways work very different. Perhaps there are some configurations that have to be changed. Hopefully, there are someone that can help me.:D[/size][/size]

#5

You have the same wireless as me.

It works fine and your output shows it has the kernel driver installed.

Just use networkmanager from the panel add new wlan0 (if you already added one, delete it and start again)
Make sure the wireless switch on your laptop is ON.

Enter the info to connect to your router

#6

Hello,

I might have a related problem on my notebook with 11.1. For example www.opensuse.org or http://www.cups.org are servers I can not reach and www.google.com is one I can reach. I am connected
via wifi (ipw2200). If I connect via cable I do not have that problem, also in Windows I do not have any problem.
Now I was using wireshark to listen on the ethernet interface. The problem is now that the 3-way handshake fails:
My kernel sends a SYN to the server, the server sends a SYN/ACK back, but my kernel does not do an ACK response. Then the server sends another SYN/ACK: no answer by my kernel. Then my kernel starts over with another SYN.
But it only happens for certain IP adresses.

I do not have a firewall running and on 11.0 it worked fine.

#7

I’ve seen this when clamp-mss-to-pmtu is not used or your MTU is to high or ICMP-Typ-3-Code-4- or ICMPv6-Typ-2- packets are dropped by a firewall.