> Hello,
>
> We have a couple of RB433AH - one in the City connected to two ADSL
> modems and the other in the near small town connected to ~100 clients.
> The wireless link is 10Km but performance is poor. I tried to turn on
> turbo and the bandwidth test went from 4~5Mbps to 8~9Mbps, per
> direction in a "direction=both, tcp" BWTest ran at the RBs themselves.
> But later the whole thing crashed, the RB in the city with the two
> ADSLs connected gives a lot of problems. Attached is a autosupot.rif I
> found on it after it crashing. And a supout.rif which I just
> generated. After a lot of problems we restored a backup which is now
> active, so you can see what currently works (supout.rif) but with very
> poor Wi-Fi performance and what crashed the router several hours before
> (autosupot.old.rif). I hope you can tell me what's happening here,
> where do we have problems, where can we improve, do we need to replace
> the RB or what to do? Another thing we must consider is that my
> colleague told me that when enabling ADSL1 PPPoE connection - the RB
> crashed and with ADSL2 the RB was OK.
>
> In my opinion the current configuration is not correct but works and
> we need to improve it a lot. wlan1 and wds1 do not need to be in a
> Bridge, right? The Wi-Fi link is p2p.
>
> We will try to improve the config, doing a QoS, load balancing,
> fail-over, Web Proxy on the RB which seems to save some bandwidth
> across the slow ADSLs without making much CPU usage and without
> writing to the Flash which is good.
>
> After the last crash the station-wds RB433AH in the small town could
> not request a wds type link and IP connection was lost. Could this be
> a problem in WDS implementation combined with specific
> (mis)configuration?
>
> By the way, after the one of the recent crashes, the graphs were lost
> and I turned them off.
>
> Thanks for the help.
>
> Regards.
>
> NetworkPro.
I changed signal strength to -55dBm by reducing the tx power of the RB that is OK. Reducing the tx power of the problematic RB in the city does not change signal strength and it's always at -66/67dBm. Right now both are set at 12dBm, default was ~24. Currently running v3.18.Hello,
Note, that -55 signal strength is not poor wireless configuration. It is very
good wireless signal indeed, -40 signal is too good. When you have wireless
link with -40 signal, tx-power of the wireless card should be decreased and
you should get about -50 to -60. Too good signal can cause problems and
latency too.
Make sure you need WDS for the wireless link, WDS is required when transparent
bridging is necessary on your network. Otherwise you can simply use
mode=bridge and mode=station on the other end and IP addresses, when bridging
is not required.
Do not run bandwidth test, but send real data (FTP transfer, HTTP download)
over the wireless link and check the throughput.
Regards,
Sergejs
Please if anyone has some suggestions, we would appreciate any help. Thanks
