[opensuse] Perplexing networking issue
I have 2 computers running opensuse 13.1. One is 32 bit, one is 64 bit. Both are running KDE4. Both are using Asus "USB-N13 wireless N300 adapter" System is using ifup, not network manager for network control The Asus nic was selected based on the Linux compatability website which said basically, "no issues". Well, that ain't quite true. Occasionally, from a few minutes to a day or so, the networking (routing?) quits. No other indications other than it takes way too long for a website to respond, then I do a ping to anywhere which fails. Then I (as root) do systemctl restart network.service which makes everything ok again (for a while). That is the x86_64 box. The 32bit box's networking is noteworthy if it runs for an hour without stopping. Ok, by now it looks very much like it is the Asus hardware. Or is it? The 32bit system is an Athlon 64/3200 (IIRC) and the x86_64 is an I5 so it would appear that there are enough hardware differences between those 2 boxes to eliminate all but maybe the USB subsystems The nic is using the rtl8192cu module. The 32bit box previously was using a PCI wireless card which was really old... ACX111, I think. It could not do the encryption that the ISP's equipment requires, hence the change. Anyone have a clue as to what would cause this type of intermittent stopping of the networking? Or how to correct it? Would there be a difference between the ifup and networkmanager? I haven't tested that yet. Why would there be such a noticeable difference between the problem occurrence in the 32bit box vs the x86_64? The x86_64 box is a mini-itx with only USB expansion available and it works good enough to keep me from smashing the USB NIC to bits but the other box is most frustrating. Fred -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 05/20/2015 12:04 PM, Stevens wrote:
Anyone have a clue as to what would cause this type of intermittent stopping of the networking?
Have you tried running Wireshark, to verify what's leaving your computer? -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Hello Fred, Probably the cause is a dissociation from the AP (should be visible in the syslog). Reconnection can be enforced through wpa_cli as root: # wpa_cli -i wlan0
reassociate OK
<3>CTRL-EVENT-SCAN-RESULTS <3>SME: Trying to authenticate with ... NetworkManager probably (I don't use it, therefore I'm not very familiar with it) will allow a more user-friendly way for reconnection to the AP. The distance and the obstacles between the client and the AP are probably the cause for these problems and not the OS type. Do you know what wireless chip is used in the equipment provided by the ISP? Regards, I. Petrov On 05/20/2015 07:04 PM, Stevens wrote:
I have 2 computers running opensuse 13.1. One is 32 bit, one is 64 bit. Both are running KDE4. Both are using Asus "USB-N13 wireless N300 adapter" System is using ifup, not network manager for network control
The Asus nic was selected based on the Linux compatability website which said basically, "no issues". Well, that ain't quite true.
Occasionally, from a few minutes to a day or so, the networking (routing?) quits. No other indications other than it takes way too long for a website to respond, then I do a ping to anywhere which fails. Then I (as root) do systemctl restart network.service which makes everything ok again (for a while).
That is the x86_64 box. The 32bit box's networking is noteworthy if it runs for an hour without stopping.
Ok, by now it looks very much like it is the Asus hardware. Or is it? The 32bit system is an Athlon 64/3200 (IIRC) and the x86_64 is an I5 so it would appear that there are enough hardware differences between those 2 boxes to eliminate all but maybe the USB subsystems
The nic is using the rtl8192cu module.
The 32bit box previously was using a PCI wireless card which was really old... ACX111, I think. It could not do the encryption that the ISP's equipment requires, hence the change.
Anyone have a clue as to what would cause this type of intermittent stopping of the networking? Or how to correct it? Would there be a difference between the ifup and networkmanager? I haven't tested that yet. Why would there be such a noticeable difference between the problem occurrence in the 32bit box vs the x86_64?
The x86_64 box is a mini-itx with only USB expansion available and it works good enough to keep me from smashing the USB NIC to bits but the other box is most frustrating.
Fred -----BEGIN PGP SIGNATURE----- Version: GnuPG v2
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On 05/20/2015 06:04 PM, Stevens wrote:
[...] the other box is most frustrating.
Is there anything else on that network? Recently I got really strange effects because someone cloned a VM without setting a new MAC address for the clone: pinging other networks was mostly okay, but nothing worked from within the same the same network segment. Therefore: rule out any other disturbing possibilities first. Have a nice day, Berny -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
participants (4)
-
Bernhard Voelker -
I.Petrov -
James Knott -
Stevens