cannot reconnect

RouterOS Wireless Networking
1

we have one mikrotik:

we had bad ping times/PacketLoss… tried to change the channel. After that, no client could connect to it! (despite the signal level was OK) After that we went to the tower to do something with the routerboard.. By the time we arrived in the tower many clients were connected, ping times were OK.

After that we changed the channel again, and the symptom were the SAME! The notebook couldn’t connect - despite the distance between the routerboard and notebook was not more than 3 meters!

After that: we thought that the miniPCI’s gone wrong, so tried to make that test (change channel) with another routerboard - did change channel. the first change was OK. But: after changed the channel back to the original, the symptoms were the same. No client could connect to this routerboard, too.

does this connected to the “periodic-calibration”? it is enabled now… in the tower there is 0-5 Celsius..

there is half an hour gone whereof some clients could connect..

Mikrotik version is 2.9.10.. now trying to downgrade.. the oldest version downloadable is 2.9.8…

2

I think “periodic-recalibration” is recommended as is leaving the power setting to default.

I was doing some tests last night and have found that using antenna connection b on my atheros 5213 mni-pci cards gives an extra 1db - pretty subjective though I’d say.

Good luck with your install, look forward to warming up tonight!

3

after replacing the miniPCI and downgrading.. same results..
now clients can connect but the ping times are VERY big :frowning:.
openWRT client shows -52/92 signal strength..

4

This is a wireless client but things you can maybe check:

0  R name="wlan-1" mtu=1500 mac-address=00:02:6F:38:D4:8D arp=enabled 
      disable-running-check=no interface-type=Atheros AR5213 
      radio-name="00026F38D48D" mode=station ssid="SVWLink" area="" 
      frequency-mode=manual-txpower
band=2.4ghz-b scan-list=default rate-set=configured 
      supported-rates-b=1Mbps,2Mbps,5.5Mbps,11Mbps 
      supported-rates-a/g=24Mbps,36Mbps,48Mbps,54Mbps 
      basic-rates-b=1Mbps,2Mbps,5.5Mbps,11Mbps 
      basic-rates-a/g=24Mbps,36Mbps,48Mbps,54Mbps 
      ack-timeout=dynamic tx-power-mode=default 
      periodic-calibration=enabled burst-time=disabled dfs-mode=none 
      antenna-mode=ant-a wds-mode=disabled wds-default-bridge=none 
      wds-ignore-ssid=no update-stats-interval=10s default-authentication=yes 
      default-forwarding=yes default-ap-tx-limit=0 default-client-tx-limit=0 
disconnect-timeout=3s 
      on-fail-retry-time=100ms preamble-mode=long compression=no 
[quote][/quote]
5

Basic rate should be set back to default. Do a system-reset and it will happen.

John