Article 6DRJ2 Internet Issue

Internet Issue

by
business_kid
from LinuxQuestions.org on (#6DRJ2)
I'm having very frequent and weird internet outages after years of very reliable operation. I have Slackware64-15.0 here on a modern box. Wifi is a pci card: Code:sudo lspci
05:00.0 Network controller: Qualcomm Atheros AR9462 Wireless Network Adapter (rev 01)

sudo iwconfig wlan4
wlan4 IEEE 802.11 ESSID:"********"
Mode:Managed Frequency:2.452 GHz Access Point: 34:81:C4:E0:4B:88
Bit Rate=115.6 Mb/s Tx-Power=16 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Encryption key:off
Power Management:off
Link Quality=66/70 Signal level=-44 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:186 Missed beacon:0The only oddity I notice in iwconfig is the Bit rate. Every time I run that command, the bit rate is different (72MB/S - 116MB/S). Signal quality is 66/70 to 70/70 (=-44dBm to -40dBm).

My internet feed is a 100Mb slice of a glass fibre cable, but it's down to just over 60MB by the time it reaches me. The router is very steady on reporting that figure.

Now while I was talking to the isp tech support, I couldn't open every web page I tried, but I could open some. Streaming short videos might start or not. Starting was no guarantee they would complete. Most failed at least once. I tried to ping my dns server and it timed out. But he could look into my router, and everything seemed fine. They have solved all problems to date online. In fact, there was no queue for tech support, which bodes well.

But here's the rub: All this time I had a torrent downloading at 2-4Mb/S!. No breaks at all.

The torrent was using qbittorrent. The isp guy is saying it's not them. Everything looks kosher here. My RazPi (On slarm64-15.0, an unofficial Slackware recompile) could open everything, stream, ping the isp, and behaved perfectly.

Weather is mild here. We're situated 44 metres above sea level, and no torrential rain is affecting us. Neither is anything draining into us. It's just my box, it seems.

To Summarise:
  • It's not the internet feed.
  • It doesn't seem to be my wifi card.
  • It does seem to be my box.
EDIT: I went back to my RazPi and took it for a good test drive. No lags, no issues, internet is perfect. It uses the same dns server as this one, too.
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