Netgear GS110TPv3 port disabled automatically regularly

Hello,

I have recently purchased NegGear GS110TPv3 switch for ISP connectivity. 

Below is the setup How I throught he cable routing:

     i.  I took the output from POE Adaptor(ISP) to NetGear switch Port-1.

    ii.  And I took output from Port-10(SFP Port) to Fortigate firewall input.

when the connection is established network transaction is good through NetGear switch Port-1. After some few minutes or Few Hours the particular port gets disabled automatically.

I tried below steps for troubleshooting but not works.

i. Port configuration ==> Duplex Mode ==> Full.

ii. Port Configuration ==>  Admin Mode ==> Enable.

Kindly check the logs generated on switch:

<182>1 2021-05-04T08:14:53.330Z 192.168.0.239-1 LLDP-6-NEIGHBOR_DISCOVER proto_lldp.c(5184) %% New neighbor on port GigabitEthernet2: Chassis ID B0:0C:D1:65:09:92, Port ID B0:0C:D1:65:09:92

<181>1 2021-05-04T08:14:53.770Z 192.168.0.239-1 TRAPMGR-5-PORT_LINK_UP ksi_snmp.c(232) %% Interface GigabitEthernet2 link up

182>1 2021-05-04T02:53:17.050Z 192.168.0.239-1 LLDP-6-NEIGHBOR_DEL proto_lldp.c(4985) %% Neighbor deleted on port GigabitEthernet1: Chassis ID 00:06:AE:FA:9E:9B, Port ID 00:06:AE:FA:9E:9B

<181>1 2021-05-04T02:53:16.670Z 192.168.0.239-1 TRAPMGR-5-PORT_LINK_DOWN ksi_snmp.c(230) %% Interface GigabitEthernet1 link down

<180>1 2021-05-04T02:53:16.670Z 192.168.0.239-1 PORT-4-ERR_DISABLE rsd_port.c(950) %% loopback-detection error detected on GigabitEthernet1, putting GigabitEthernet1 in err-disable state