HT-M2808 No whitness

Hi,
I installed HT-M2808 4 days ago. no relayed, synced.
But there is no whitness.
first i tried it with heltec 3.5 dbi antenna.
then I installed a 6dbi antenna on the roof.
but it didn’t change.

There are many hotspots around.

what can i do.
Thank you.

There are lora log.

Uplink

Apr 11 12:00:58 JSON up: {“rxpk”:[{“tmst”:3662587711,“chan”:1,“rfch”:1,“freq”:868.300000,“stat”:1,“modu”:“LORA”,“datr”:“SF7BW125”,“codr”:“4/5”,“rssis”:-120,“lsnr”:-5.8,“rssi”:-114,“size”:10,“data”:“pAEUIbHAJrAAVg==”}]}
Apr 11 12:02:09 JSON up: {“rxpk”:[{“tmst”:3666870757,“chan”:1,“rfch”:1,“freq”:868.300000,“stat”:1,“modu”:“LORA”,“datr”:“SF7BW125”,“codr”:“4/5”,“rssis”:-120,“lsnr”:-5.8,“rssi”:-114,“size”:10,“data”:“pAEUId/R8q0AYg==”}]}
Apr 11 12:02:09 JSON up: {“rxpk”:[{“tmst”:3668052768,“chan”:1,“rfch”:1,“freq”:868.300000,“stat”:1,“modu”:“LORA”,“datr”:“SF7BW125”,“codr”:“4/5”,“rssis”:-108,“lsnr”:3.8,“rssi”:-106,“size”:10,“data”:“pAEUH/Gr8R7/3Q==”}]}
Apr 11 12:02:09 JSON up: {“rxpk”:[{“tmst”:3677225166,“chan”:3,“rfch”:0,“freq”:867.100000,“stat”:1,“modu”:“LORA”,“datr”:“SF12BW125”,“codr”:“4/5”,“rssis”:-128,“lsnr”:-17.2,“rssi”:-111,“size”:52,“data”:“QDDaAAHaN9XuAHKBAG+6GsRiyJ9vyLYxP+OP0oSlOrtK4vHjhAA2hdlltbKdHfV+HOCr3g==”}]}
Apr 11 12:03:59 JSON up: {“rxpk”:[{“tmst”:3799144652,“chan”:1,“rfch”:1,“freq”:868.300000,“stat”:1,“modu”:“LORA”,“datr”:“SF7BW125”,“codr”:“4/5”,“rssis”:-118,“lsnr”:-2.8,“rssi”:-114,“size”:10,“data”:“pAEUId/RWa0AYw==”}]}
Apr 11 12:05:29 JSON up: {“rxpk”:[{“tmst”:3865286506,“chan”:1,“rfch”:1,“freq”:868.300000,“stat”:1,“modu”:“LORA”,“datr”:“SF7BW125”,“codr”:“4/5”,“rssis”:-115,“lsnr”:0.5,“rssi”:-112,“size”:10,“data”:“pAEUId/RWa0AYw==”}]}
Apr 11 12:07:29 JSON up: {“rxpk”:[{“tmst”:3938896024,“chan”:7,“rfch”:0,“freq”:867.900000,“stat”:1,“modu”:“LORA”,“datr”:“SF12BW125”,“codr”:“4/5”,“rssis”:-123,“lsnr”:-12.5,“rssi”:-111,“size”:52,“data”:“QDDaAAHW8L6yACsLADpOdOdIjOpthuxQKhCtUU+VuqIxppOgVg7V0a52YwSc5Q/EkVUMSQ==”}]}
Apr 11 12:12:59 JSON up: {“rxpk”:[{“tmst”:42374149,“chan”:7,“rfch”:0,“freq”:867.900000,“stat”:1,“modu”:“LORA”,“datr”:“SF12BW125”,“codr”:“4/5”,“rssis”:-125,“lsnr”:-14.5,“rssi”:-112,“size”:52,“data”:“QDDaAAHNYqxbALrnAM52xbAThf6iPlqYBUOXUZ2HRmSUvCYn2sHDXB4mx+L88B9/onwLog==”}]}
Apr 11 12:33:29 JSON up: {“rxpk”:[{“tmst”:1255321854,“chan”:7,“rfch”:0,“freq”:867.900000,“stat”:1,“modu”:“LORA”,“datr”:“SF12BW125”,“codr”:“4/5”,“rssis”:-122,“lsnr”:-11.8,“rssi”:-111,“size”:52,“data”:“QDDaAAEop8vPALAIAISvS7OrHn8aUDt7eWpwVwi7wOXv3YZtF7iI+MGYI6ZbEqgmCRKt1g==”}]}
Apr 11 12:38:59 JSON up: {“rxpk”:[{“tmst”:1563925242,“chan”:2,“rfch”:1,“freq”:868.500000,“stat”:1,“modu”:“LORA”,“datr”:“SF12BW125”,“codr”:“4/5”,“rssis”:-101,“lsnr”:4.5,“rssi”:-100,“size”:17,“data”:“gNxBBf4DCQIG/wYBBTr3uCQ=”}]}

Downlink

Mar 15 07:22:46 JSON down: {“txpk”:{“imme”:false,“rfch”:0,“powe”:14,“ant”:0,“brd”:0,“tmst”:77672867,“freq”:867.5,“modu”:“LORA”,“datr”:“SF12BW125”,“codr”:“4/5”,“ipol”:true,“size”:12,“data”:“YLb0/gCg0AHvAg27”}}
Mar 15 07:22:46 JSON down: {“txpk”:{“imme”:false,“rfch”:0,“powe”:14,“ant”:0,“brd”:0,“tmst”:85937536,“freq”:868.3,“modu”:“LORA”,“datr”:“SF12BW125”,“codr”:“4/5”,“ipol”:true,“size”:12,“data”:“YLb0/gCg0QHJp+hf”}}
Mar 15 07:22:46 JSON down: {“txpk”:{“imme”:false,“rfch”:0,“powe”:14,“ant”:0,“brd”:0,“tmst”:94294236,“freq”:867.5,“modu”:“LORA”,“datr”:“SF12BW125”,“codr”:“4/5”,“ipol”:true,“size”:12,“data”:“YLb0/gCg0gG+v4Yb”}}
Mar 15 07:23:25 JSON down: {“txpk”:{“imme”:false,“rfch”:0,“powe”:14,“ant”:0,“brd”:0,“tmst”:102989937,“freq”:868.3,“modu”:“LORA”,“datr”:“SF12BW125”,“codr”:“4/5”,“ipol”:true,“size”:12,“data”:“YLb0/gCg0wGBPbL5”}}
Mar 15 07:23:25 JSON down: {“txpk”:{“imme”:false,“rfch”:0,“powe”:14,“ant”:0,“brd”:0,“tmst”:111800651,“freq”:867.5,“modu”:“LORA”,“datr”:“SF12BW125”,“codr”:“4/5”,“ipol”:true,“size”:12,“data”:“YLb0/gCg1AGfU6vH”}}
Mar 15 07:23:25 JSON down: {“txpk”:{“imme”:false,“rfch”:0,“powe”:14,“ant”:0,“brd”:0,“tmst”:120354313,“freq”:868.3,“modu”:“LORA”,“datr”:“SF12BW125”,“codr”:“4/5”,“ipol”:true,“size”:12,“data”:“YLb0/gCg1QF3NJjw”}}
Mar 15 07:23:25 JSON down: {“txpk”:{“imme”:false,“rfch”:0,“powe”:14,“ant”:0,“brd”:0,“tmst”:128686022,“freq”:867.5,“modu”:“LORA”,“datr”:“SF12BW125”,“codr”:“4/5”,“ipol”:true,“size”:12,“data”:“YLb0/gCg1gEtGq39”}}
Mar 15 07:23:25 JSON down: {“txpk”:{“imme”:false,“rfch”:0,“powe”:14,“ant”:0,“brd”:0,“tmst”:136959695,“freq”:868.3,“modu”:“LORA”,“datr”:“SF12BW125”,“codr”:“4/5”,“ipol”:true,“size”:12,“data”:“YLb0/gCg1wHrhtfQ”}}
Apr 8 18:04:49 JSON down: {“txpk”:{“codr”:“4/5”,“data”:“QDDaAAGHi7LhAPs9ALDcmu+feBQ9FsatE574QpxFFm8rtLTUecT5n9UiBU5xbWqBiOa3nA==”,“datr”:“SF12BW125”,“freq”:867.3,“imme”:true,“ipol”:false,“modu”:“LORA”,“powe”:12,“rfch”:0,“size”:52,“tmst”:0}}