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Old 01-04-2008, 06:37 PM   #1
Registered: Nov 2006
Location: Slovenia
Distribution: Slackware 13.37
Posts: 511

Rep: Reputation: 37
Painfully slow connection over wireless

I'm experiencing very slow connection last days over a wireless connection.
I have a rt2500 based MiniPCI on a MSI laptop, and a IskraTel Sinope ADSL modem which has an option of Wireless. Now I can turn it on as a Wireless router or use it as a Wireless modem. I'm not using the Wireless router option because port forwarding on this crappy modem is a headache. So I'm using it as a Wireless modem, connecting to it over wlan0 interface and then I have configured rp-pppoe to connect to the web.
Now this configuration has worked for me for very long but lately I get very low speeds(pings are ok though) on the web and local network, and my wireless signal just suddenly drops, so it disconnects me, and then comes back again for a few seconds and the story continues.

I also have a Slack 12 box with a rt71 based wireless USB key, connecting in the very same way as this laptop and it's connection is great, so I don't think this could be the modem. I've checked the logs, nothing special just rppppoe says:
Jan  5 00:35:07 xendria pppd[15727]: No response to 3 echo-requests
Jan  5 00:35:07 xendria pppd[15727]: Serial link appears to be disconnected.
Jan  5 00:35:07 xendria pppd[15727]: Connect time 7.0 minutes.
dmesg doesn't show anything unusual, just:
PM: Removing info for No Bus:ppp0
PM: Adding info for No Bus:ppp0
This was happening on working ok here before) and now I've compiled kernel and recompiled the wireless driver which I obtained from and this problem just keeps reappearing.
I haven't changed anything on the system or that I would know of any change by the time this has started happening and I have no idea why this is happening.
I hope that anyone knows anything about this and can help me.
Old 01-04-2008, 10:46 PM   #2
LQ Guru
Registered: Jan 2001
Posts: 24,149

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What's the link quality when it drops you? That's what the issue sounds like to me. Maybe your neighbor got a fancy new microwave or something interfering with the waves..
Old 01-05-2008, 05:24 AM   #3
Registered: Nov 2006
Location: Slovenia
Distribution: Slackware 13.37
Posts: 511

Original Poster
Rep: Reputation: 37
All the neighbors are minimum 10m from our house, so I don't think this is it.
The Link quality before drop or at slow connection is 8-12%, but the quality never exceeds 20%, which is normal as my room is quite a long way from the room where the modem is.


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