OpenWrt Forum Archive

Topic: WLAN throughput, IP-hopping

The content of this topic has been archived on 19 Apr 2018. There are no obvious gaps in this topic, but there may still be some posts missing at the end.

Hi @ all,

yes this is my first post but I´m a proud owner of a OpenWRT-flashed WRT54GL, now to my questions:

After some problems connecting to the router ( 802.1x - authentification problems ) I finally managed to go online via WLAN.
But the throughput is more than worse! Average: about 60 KB/s. Any solutions?

Another thing is that my public IP-adress switches unregulary, but about every 5 minutes - could the OpenWRT be the reason or the provider?
As a (possible) result, loading pages sometimes, again unregulary, ends in a connection error..

Hope someone can help me out! Of course I´m able to post some important logs.

Thanks in advance,

themaiday

themaiday wrote:

But the throughput is more than worse! Average: about 60 KB/s. Any solutions?

Any details? (connection speed negotiated between router and wlan adapter, ..., noise sources, channel used [microwaves close?] etc.)

Another thing is that my public IP-adress switches unregulary, but about every 5 minutes - could the OpenWRT be the reason or the provider?

Your syslog might tell you why. What's you uplink type? What does "ps auxw" show before and after reconnect?

stephen wrote:

Any details? (connection speed negotiated between router and wlan adapter, ..., noise sources, channel used [microwaves close?] etc.)

Interesting: without any changes, this morning the connection speed nearly reached 100kb/s, but that was a rareness.
The negotiated connection speed is funny: 48MBit/s.
There is another laptop which has a negotiated connection speed of the promised 54MBit/s. It is shortly able to reach the 120kb/s, but than there is a connection lag and the throughput goes down..
Even SSH/Telnet Sessions lag sometimes...

Noise sources could be a DECT telephone. Are there special channels with a good compability to DECT-phones?
There is also a microwave in range, but unused.

stephan wrote:

Your syslog might tell you why. What's you uplink type? What does "ps auxw" show before and after reconnect?

Which syslog do you mean? The WAN pplink type is PPPoE, or what do you mean?

Is something wrong here:

root@OpenWrt:~# ps aux
  PID  Uid     VmSize Stat Command
    1 root        368 S   init
    2 root            SW  [keventd]
    3 root            RWN [ksoftirqd_CPU0]
    4 root            SW  [kswapd]
    5 root            SW  [bdflush]
    6 root            SW  [kupdated]
    8 root            SW  [mtdblockd]
   49 root            SWN [jffs2_gcd_mtd4]
   71 root        348 S   logger -s -p 6 -t
   73 root        368 S   init
   74 root        344 S   syslogd -C 16
   76 root        304 S   klogd
  321 root        408 S   /bin/sh /sbin/ifup.pppoe wan
  343 root        616 S   /usr/sbin/pppd nodetach plugin rp-pppoe.so connect /b
  440 root        400 S   /usr/sbin/dropbear
  447 root        380 S   httpd -p 80 -h /www -r OpenWrt
  457 root        296 S   telnetd -l /bin/login
  461 root        344 S   crond -c /etc/crontabs
12144 root        908 S   SCREEN
12145 root        436 S   /bin/ash
12197 root        484 S   nas -P /tmp/nas.lan.pid -l br0 -H 34954 -i eth1 -A -m
25003 root        408 R   vi /etc/dnsmasq.conf
25109 nobody      432 S   dnsmasq -K -F 192.168.1.100,192.168.1.210,255.255.255
3227 root        416 R   vi
3250 root        412 R   vi /etc/firewall.user
7910 root        332 S   /sbin/wifi
7935 root        476 S   /usr/sbin/nas -P /var/run/nas.lan.pid -l br0 -H 34954
8922 root        592 R   /usr/sbin/dropbear
8923 root        436 S   -ash
8926 root        360 R   ps aux

Also interesting:
Two downloads at the same time reach the 120KB/s limit of my 2MBit connection!
Maybe an MTU-related thing?

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