Lost connection A5

Hi,

Can someone tell me what the issue is below in the log files? We lost connection for a few seconds ?

Kind regards,
Wilfred Wolters
Netherlands

2019-05-21 08:47:53 (UTC +0000) : [CriticalFault] No GPS signal was seen for 3 seconds
2019-05-21 08:47:54 (UTC +0000) : [Boot_Reboot] Reboot reason: Power on Reset
2019-05-21 08:47:54 (UTC +0000) : Bootup configuration is verified successfully
2019-05-21 08:47:54 (UTC +0000) : [CriticalFault] GPS signal recovered
2019-05-21 08:48:15 (UTC +0000) : [Config] Configuring Wireless Protocol: WiFi Interop, Channel Num: 124, Center Freq: 5610, Tx Power: 19,Channel Width: 80
2019-05-22 02:45:46 (UTC +0000) : Bootup configuration is verified successfully
2019-05-23 05:17:54 (UTC +0000) : [EthernetUpDown] Ethernet link up (10/Full)
2019-05-23 05:17:55 (UTC +0000) : [EthernetUpDown] Ethernet link down
2019-05-23 05:53:37 (UTC +0000) : Bootup configuration is verified successfully
2019-05-23 23:13:23 (UTC +0000) : Channel Changed - New Channel Num: 100, Center Freq: 5530, Tx Power: 19,Channel Width: 80, Change Reason: Radar Hit
2019-05-23 23:43:29 (UTC +0000) : Channel Changed - New Channel Num: 124, Center Freq: 5610, Tx Power: 19,Channel Width: 80, Change Reason: Radar Expired
2019-05-23 23:44:14 (UTC +0000) : Channel Changed - New Channel Num: 100, Center Freq: 5530, Tx Power: 19,Channel Width: 80, Change Reason: Radar Hit
2019-05-24 00:14:23 (UTC +0000) : Channel Changed - New Channel Num: 124, Center Freq: 5610, Tx Power: 19,Channel Width: 80, Change Reason: Radar Expired
2019-05-24 03:34:01 (UTC +0000) : Bootup configuration is verified successfully

You were using a DFS Channel and got a few hits.

Al la: 2019-05-23 23:13:23 (UTC +0000) : Channel Changed - New Channel Num: 100, Center Freq: 5530, Tx Power: 19,Channel Width: 80, Change Reason: Radar Hit

If you think the DFS event was in error and you are using an A5c, verify that the settings in your radio for the Gain of your antenna are correct.

You can also check your AGC values and see if you can go manual and increase them a bit for better noise isolation. Check: http://ap.help.mimosa.co/srs-tuning-agc for more information and a good guide for doing this.

1 Like

Hello William,

I will look for these setting in the mimosa and will change it. The issue with ;
2019-05-21 08:47:53 (UTC +0000) : [CriticalFault] No GPS signal was seen for 3 seconds
2019-05-21 08:47:54 (UTC +0000) : [Boot_Reboot] Reboot reason: Power on Reset
Has this to do with the same issue ?

Either you have this A5 connected to some dinosaur switch or you are having cabling issues. Only links up top 10Mbit Full Duplex is a clear sign of this.

No, the GPS signal issue is separate.

I would make sure your A5 has a good view of the sky and that other A5s nearby it are not having similar issues.

I have a similar issue, where we routinely loose GPS signal at one of our towers, we believe it is interference, because we have several A5s that all loose their GPS at the same time. But we have other towers nearby that do not loose their signal at all.

You may want to chat with Mimosa support, they can get you access in the cloud to some more information about your GPS signals and help you with some diagnostics.

1 Like