B5C disconnects

Hi,

I have strange disconnects periodically. There can’t be any object between the units. Here are the logs coming:
Unit1:
2020-10-04 06:01:44 (UTC +0000) root: MIMO_EVENT: Center Frequency changed - 5910
2020-10-12 13:28:44 (UTC +0000) root: MIMO_EVENT Wireless disassociated
2020-10-12 13:30:54 (UTC +0000) root: MIMO_EVENT Wireless associated
2020-10-12 16:19:09 (UTC +0000) root: MIMO_EVENT Wireless disassociated
2020-10-12 16:20:53 (UTC +0000) root: MIMO_EVENT Wireless associated
2020-11-06 19:06:50 (UTC +0000) root: MIMO_EVENT Wireless disassociated
2020-11-06 19:08:34 (UTC +0000) root: MIMO_EVENT Wireless associated
2020-11-11 08:34:33 (UTC +0000) root: MIMO_EVENT Wireless disassociated
2020-11-11 08:35:55 (UTC +0000) root: MIMO_EVENT Wireless associated
2020-11-17 17:32:56 (UTC +0000) root: MIMO_EVENT Wireless disassociated
2020-11-17 17:34:18 (UTC +0000) root: MIMO_EVENT Wireless associated
2020-11-19 05:14:49 (UTC +0000) mimo_upgrade[363]: MIMO_EVENT Firmware upgraded
2020-11-19 05:14:49 (UTC +0000) mimo_upgrade[363]: MIMO_EVENT UPGRADE:OK
0000-01-01 00:00:33 (UTC +0000) root: MIMO_EVENT Running Firmware Version: 2.8.0.4
0000-01-01 00:00:51 (UTC +0000) root: MIMO_EVENT no GPS signal for 3 seconds
0000-01-01 00:00:52 (UTC +0000) root: MIMO_EVENT ethernet link duplex Full
2020-11-19 05:16:00 (UTC +0000) nmea[388]: [nmea.c:371] MIMO_EVENT First real time update from GPS at (UTC) Thu Nov 19 05:16:00 2020
2020-11-19 05:16:02 (UTC +0000) root: MIMO_EVENT ethernet link up(1000/Full)
2020-11-19 05:16:15 (UTC +0000) root: MIMO_EVENT GPS signal recovered
2020-11-19 05:16:26 (UTC +0000) root: MIMO_EVENT ethernet link down
2020-11-19 05:16:31 (UTC +0000) root: MIMO_EVENT ethernet link up(1000/Full)
2020-11-19 05:16:33 (UTC +0000) root: MIMO_EVENT ethernet link duplex Full
2020-11-19 05:16:46 (UTC +0000) root: MIMO_EVENT Wireless associated
2020-11-19 05:16:59 (UTC +0000) root: MIMO_EVENT Wireless disassociated
2020-11-19 05:17:26 (UTC +0000) root: MIMO_EVENT build_time=2020-10-27 17:15:08 (UTC +0000) bamboo_build_time_stamp=2020-10-27T17:10:21.010Z bamboo_build_number=4 project=FWREL-RB5P35 branch=release/2.8.0.4
2020-11-19 05:17:34 (UTC +0000) root: MIMO_EVENT Shutdown reason: UI-initiated reboot - Upgrade
2020-11-19 05:17:35 (UTC +0000) root: MIMO_EVENT Reboot reason: UI-initiated reboot - Upgrade
2020-11-19 05:17:38 (UTC +0000) root: MIMO_EVENT System was upgraded
2020-11-19 05:18:47 (UTC +0000) root: MIMO_EVENT: lat: 46.9686, long: 18.9401, local_country: Hungary , remote_country: Hungary
2020-11-19 05:18:47 (UTC +0000) root: MIMO_EVENT: Successful Country Verification
2020-11-19 05:18:47 (UTC +0000) root: MIMO_EVENT Wireless associated
2020-11-30 14:36:09 (UTC +0000) root: MIMO_EVENT Wireless disassociated
2020-11-30 14:38:09 (UTC +0000) root: MIMO_EVENT Wireless associated

Unit2:
2020-10-12 16:19:10 (UTC +0000) root: MIMO_EVENT Wireless disassociated
2020-10-12 16:20:54 (UTC +0000) root: MIMO_EVENT Wireless associated
2020-11-06 19:06:50 (UTC +0000) root: MIMO_EVENT Wireless disassociated
2020-11-06 19:08:34 (UTC +0000) root: MIMO_EVENT Wireless associated
2020-11-11 08:34:33 (UTC +0000) root: MIMO_EVENT Wireless disassociated
2020-11-11 08:35:55 (UTC +0000) root: MIMO_EVENT Wireless associated
2020-11-17 17:32:57 (UTC +0000) root: MIMO_EVENT Wireless disassociated
2020-11-17 17:34:19 (UTC +0000) root: MIMO_EVENT Wireless associated
2020-11-19 05:15:22 (UTC +0000) root: MIMO_EVENT Wireless disassociated
2020-11-19 05:16:47 (UTC +0000) mimo_upgrade[363]: MIMO_EVENT Firmware upgraded
2020-11-19 05:16:47 (UTC +0000) mimo_upgrade[363]: MIMO_EVENT UPGRADE:OK
2020-11-19 05:16:49 (UTC +0000) root: MIMO_EVENT Wireless associated
0000-01-01 00:00:33 (UTC +0000) root: MIMO_EVENT Running Firmware Version: 2.8.0.4
0000-01-01 00:00:55 (UTC +0000) root: MIMO_EVENT no GPS signal for 3 seconds
2020-11-19 05:18:06 (UTC +0000) nmea[388]: [nmea.c:371] MIMO_EVENT First real time update from GPS at (UTC) Thu Nov 19 05:18:04 2020
2020-11-19 05:18:10 (UTC +0000) root: MIMO_EVENT ethernet link up(1000/Full)
2020-11-19 05:18:10 (UTC +0000) root: MIMO_EVENT ethernet link duplex Full
2020-11-19 05:18:17 (UTC +0000) root: MIMO_EVENT GPS signal recovered
2020-11-19 05:18:27 (UTC +0000) root: MIMO_EVENT ethernet link down
2020-11-19 05:18:32 (UTC +0000) root: MIMO_EVENT ethernet link up(1000/Full)
2020-11-19 05:18:34 (UTC +0000) root: MIMO_EVENT ethernet link duplex Full
2020-11-19 05:18:49 (UTC +0000) root: MIMO_EVENT Wireless associated
2020-11-19 05:19:31 (UTC +0000) root: MIMO_EVENT build_time=2020-10-27 17:15:08 (UTC +0000) bamboo_build_time_stamp=2020-10-27T17:10:21.010Z bamboo_build_number=4 project=FWREL-RB5P35 branch=release/2.8.0.4
2020-11-19 05:19:39 (UTC +0000) root: MIMO_EVENT Shutdown reason: UI-initiated reboot - Upgrade
2020-11-19 05:19:41 (UTC +0000) root: MIMO_EVENT Reboot reason: UI-initiated reboot - Upgrade
2020-11-19 05:19:43 (UTC +0000) root: MIMO_EVENT System was upgraded
2020-11-19 05:20:54 (UTC +0000) root: MIMO_EVENT: lat: 47.0558, long: 18.9129, local_country: Hungary , remote_country: Hungary
2020-11-19 05:20:54 (UTC +0000) root: MIMO_EVENT: Successful Country Verification
2020-11-30 14:36:09 (UTC +0000) root: MIMO_EVENT Wireless disassociated
2020-11-30 14:38:09 (UTC +0000) root: MIMO_EVENT Wireless associated

There is a good link -54dB on 9.9km.
What can be the problem?

best regards, Gabor

same problem with C5C

@Gabor,

Which device is the AP? could you post screen shots of the main page and the Channel and Power page for each device?

Hi William,

Unit 2 is the AP.
Here are the screenshots coming (AP first)

1 Like

Could you post a screen shot of both sides of the link’s Main Dashboard Screen?

Here you are

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What is the actual gain of your antennas? I want to try modeling it really quick.

Your CINR isn’t all that great, I am guessing there must be some sporadic noise on the link that the spectrum analyzer isn’t picking up. How much bandwidth are you wanting to pass over the link? You might try dropping your channel down to 2x40 or 2x20 if you don’t need to push >300 Mbps…

my antennas are 32dBi

Do you need the full 80 MHz wide channel? You can get pretty close with 2x40s and they might be more resiliant to noise which is what I would suspect for your situation. Though, I am having difficulty replicating Hungary’s EIRP rules and what your actual TX EIRP is…