TP link archer c2 loses connection to internet

Installing and Using OpenWrt
1

Hi, I installed OpenWrt (19.07.4 r11208-ce6496d796) for my first time on a TP link archer c2 router. Every so often, it loses connection to the internet for a few minutes. I don't anything about networking and would appreciate if someone can help troubleshoot the issue.

Thanks

System log:

Tue Nov 17 17:42:37 2020 daemon.info dnsmasq-dhcp[2147]: DHCPREQUEST(br-lan) 192.168.1.165 e4:6f:13:f4:77:4a
Tue Nov 17 17:42:37 2020 daemon.info dnsmasq-dhcp[2147]: DHCPACK(br-lan) 192.168.1.165 e4:6f:13:f4:77:4a
Tue Nov 17 17:43:07 2020 kern.err kernel: [  511.259011] mtk_soc_eth 10100000.ethernet eth0: transmit timed out
Tue Nov 17 17:43:07 2020 kern.info kernel: [  511.265342] mtk_soc_eth 10100000.ethernet eth0: dma_cfg:80000065
Tue Nov 17 17:43:07 2020 kern.info kernel: [  511.271514] mtk_soc_eth 10100000.ethernet eth0: tx_ring=0, base=02f20000, max=1024, ctx=984, dtx=984, fdx=945, next=984
Tue Nov 17 17:43:07 2020 kern.info kernel: [  511.282556] mtk_soc_eth 10100000.ethernet eth0: rx_ring=0, base=0259c000, max=1024, calc=1001, drx=1002
Tue Nov 17 17:43:07 2020 kern.info kernel: [  511.293098] mtk_soc_eth 10100000.ethernet eth0: port 5 link down
Tue Nov 17 17:43:07 2020 kern.info kernel: [  511.300911] mtk_soc_eth 10100000.ethernet eth0: port 5 link up (1000Mbps/Full duplex)
Tue Nov 17 17:43:17 2020 kern.err kernel: [  516.248562] mtk_soc_eth 10100000.ethernet eth0: transmit timed out
Tue Nov 17 17:43:17 2020 kern.info kernel: [  516.254893] mtk_soc_eth 10100000.ethernet eth0: dma_cfg:80000065
Tue Nov 17 17:43:17 2020 kern.info kernel: [  516.261058] mtk_soc_eth 10100000.ethernet eth0: tx_ring=0, base=02744000, max=1024, ctx=181, dtx=181, fdx=134, next=181
Tue Nov 17 17:43:17 2020 kern.info kernel: [  516.272097] mtk_soc_eth 10100000.ethernet eth0: rx_ring=0, base=02f2c000, max=1024, calc=251, drx=252
Tue Nov 17 17:43:17 2020 kern.info kernel: [  516.282108] mtk_soc_eth 10100000.ethernet eth0: port 5 link down
Tue Nov 17 17:43:17 2020 kern.info kernel: [  516.289885] mtk_soc_eth 10100000.ethernet eth0: port 5 link up (1000Mbps/Full duplex)