@thebig 

Can you post a bigger screenshot of the logs?   Ideally the 4 or 5 above and below what you have posted?   This will help us to see why it stopped, namely did it disconnect and redial.. or did it just lease time expire

My gut feeling however, based on the time stamp of just after midnight is the IP Address lease you got from your ISP had expired, it therefore needed to renew and got a different address.  This re-negotiation would stop the internet for a bit and look like a restart, but its not actually restarting the device.. just re-negotiating an address with your ISP, which can sometimes take 30 seconds or more..

Ive seen this before with some ISPs.    More logs would help if you want to post them

  @Philbert ,

I downloaded the complete logs but I am unable to attach it here as it gives me failed to upload error.
So I will just paste the log below,I have masked sensitive information.

Hardware Version: Archer C2300 v1.0
Software Version: 2.0.4 Build 20210705 Rel. 68265

2023-07-18 19:48:52 nat[0]: <6> 211996 Log 211501 repeated 1 times
2023-07-18 19:48:52 nat[0]: <5> 211995 Log 211054 repeated 19 times
2023-07-18 19:48:48 nat[5963]: <6> 211501 Initialization succeeded
2023-07-18 19:48:46 nat[5844]: <6> 211501 Initialization succeeded
2023-07-18 19:48:46 nat[5844]: <6> 211501 Initialization succeeded
2023-07-18 19:48:45 nat[5699]: <6> 211501 Initialization succeeded
2023-07-18 19:48:44 nat[5699]: <6> 211501 Initialization succeeded
2023-07-18 19:48:36 nat[4361]: <6> 211501 Initialization succeeded
2023-07-18 19:48:36 nat[4361]: <6> 211501 Initialization succeeded
2023-07-18 19:48:34 nat[4174]: <6> 211501 Initialization succeeded
2023-07-18 19:48:34 nat[4174]: <6> 211501 Initialization succeeded
2023-07-18 19:48:33 nat[4035]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2023-07-18 19:48:33 nat[4035]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2023-07-18 19:48:32 nat[4035]: <6> 211501 Initialization succeeded
2023-07-18 19:48:32 nat[4035]: <6> 211501 Initialization succeeded
2023-07-18 19:48:02 nat[2812]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2023-07-18 19:48:02 nat[2812]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2023-07-18 19:48:02 nat[2812]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2023-07-18 19:48:01 nat[2812]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2023-07-18 19:48:01 nat[2812]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2023-07-18 19:48:00 nat[2812]: <6> 211501 Initialization succeeded
2023-07-18 19:48:00 nat[2812]: <6> 211501 Initialization succeeded
2023-07-18 19:48:00 nat[2201]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2023-07-18 19:48:00 nat[2201]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2023-07-18 19:47:59 nat[2201]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2023-07-18 19:47:59 nat[2201]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2023-07-18 19:47:59 nat[2201]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2023-07-18 19:47:58 nat[2201]: <6> 211501 Initialization succeeded
2023-07-18 19:47:58 nat[2201]: <6> 211501 Initialization succeeded
2023-07-18 19:47:39 nat[1244]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2023-07-18 19:47:39 nat[1244]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2023-07-18 19:47:39 nat[1244]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2023-07-18 19:47:39 nat[1244]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2023-07-18 19:47:39 nat[1244]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2023-07-18 19:47:38 nat[1244]: <6> 211501 Initialization succeeded
2023-07-18 19:47:38 nat[1244]: <6> 211501 Initialization succeeded
2023-07-18 19:17:52 nat[12838]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2023-07-18 19:17:52 nat[12838]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2023-07-18 19:17:52 nat[12838]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2023-07-18 19:17:52 nat[12838]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2023-07-18 19:17:51 nat[12838]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2023-07-18 19:17:51 nat[12838]: <6> 211501 Initialization succeeded
2023-07-18 19:17:50 nat[12838]: <6> 211501 Initialization succeeded
2021-07-05 00:02:25 nat[10549]: <6> 211021 IPSEC ALG enabled
2021-07-05 00:02:25 nat[10549]: <6> 211021 L2TP ALG enabled
2021-07-05 00:02:25 nat[10549]: <6> 211021 PPTP ALG enabled
2021-07-05 00:02:25 nat[10549]: <6> 211021 SIP ALG enabled
2021-07-05 00:02:25 nat[10549]: <6> 211021 RTSP ALG enabled
2021-07-05 00:02:25 nat[10549]: <6> 211021 H323 ALG enabled
2021-07-05 00:02:25 nat[10549]: <6> 211021 TFTP ALG enabled
2021-07-05 00:02:25 nat[10549]: <6> 211021 FTP ALG enabled
2021-07-05 00:02:24 nat[10549]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2021-07-05 00:02:24 nat[10549]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2021-07-05 00:02:24 nat[10549]: <5> 211054 Virtual server created succeeded[ex-port::xxx ip:xxx.xxx.xxx.xxx in-port::xxx protocol:xxxx]
2021-07-05 00:02:24 nat[10549]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2021-07-05 00:02:24 nat[10549]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2021-07-05 00:02:22 nat[10549]: <5> 211054 Virtual server created succeeded[ex-port:xxx ip:xxx.xxx.xxx.xxx in-port:xxx protocol:xxxx]
2021-07-05 00:02:22 upnp[11334]: <6> 217504 Service start
2021-07-05 00:02:22 upnp[11334]: <6> 217505 Service stop
2021-07-05 00:02:22 remote-management[10910]: <6> 282505 Service stop
2021-07-05 00:02:21 nat[10549]: <6> 211501 Initialization succeeded
2021-07-05 00:02:20 nat[10549]: <6> 211501 Initialization succeeded
2021-07-05 00:02:20 ppp[10365]: <6> 294008 PPP connection is done with our IP xxx.xxx.xxx.xxx, DNS xxx.xxx.xxx.xxx, xxx.xxx.xxx.xxx
2021-07-05 00:00:19 remote-management[8029]: <6> 282505 Service stop
2021-07-05 00:00:19 nat[7844]: <6> 211501 Initialization succeeded
2021-07-05 00:00:19 nat[7844]: <6> 211501 Initialization succeeded
2021-07-05 00:00:11 access-control[6709]: <6> 239504 Service start
2021-07-05 00:00:11 access-control[6709]: <6> 239503 Function disabled
2021-07-05 00:00:11 usbshare[6782]: <6> 291212 No volume was mounted. The only filesystem types recognized are NTFS, FAT32 and HFS/HFS+
2021-07-05 00:00:11 usbshare[6665]: <6> 291212 No volume was mounted. The only filesystem types recognized are NTFS, FAT32 and HFS/HFS+
2021-07-05 00:00:10 usbshare[6507]: <6> 291212 No volume was mounted. The only filesystem types recognized are NTFS, FAT32 and HFS/HFS+
2021-07-05 00:00:10 nat[5839]: <6> 211502 Function enabled
2021-07-05 00:00:10 nat[5839]: <5> 211051 Create NAT chain succeeded
2021-07-05 00:00:10 usbshare[6332]: <6> 291212 No volume was mounted. The only filesystem types recognized are NTFS, FAT32 and HFS/HFS+
2021-07-05 00:00:10 nat[5839]: <6> 211501 Initialization succeeded
2021-07-05 00:00:10 usbshare[6163]: <6> 291212 No volume was mounted. The only filesystem types recognized are NTFS, FAT32 and HFS/HFS+
2021-07-05 00:00:10 nat[5839]: <6> 211501 Initialization succeeded
2021-07-05 00:00:09 usbshare[5908]: <6> 291212 No volume was mounted. The only filesystem types recognized are NTFS, FAT32 and HFS/HFS+
2021-07-05 00:00:09 basic-security[5128]: <6> 219504 Service start
2021-07-05 00:00:09 basic-security[5128]: <5> 219606 Flush conntrack table succeeded
2021-07-05 00:00:09 usbshare[5650]: <6> 291212 No volume was mounted. The only filesystem types recognized are NTFS, FAT32 and HFS/HFS+
2021-07-05 00:00:09 imb[5431]: <6> 218507 Daemon connection succeeded
2021-07-05 00:00:09 imb[5431]: <6> 218012 ARP Binding disabled
2021-07-05 00:00:09 imb[5431]: <6> 218506 Config interface initialization succeeded
2021-07-05 00:00:09 imb[5431]: <6> 218501 Initialization succeeded
2021-07-05 00:00:09 usbshare[5381]: <6> 291212 No volume was mounted. The only filesystem types recognized are NTFS, FAT32 and HFS/HFS+
2021-07-05 00:00:08 upnp[5241]: <6> 217504 Service start
2021-07-05 00:00:08 upnp[5241]: <6> 217505 Service stop
2021-07-05 00:00:08 firewall[4253]: <6> 209504 Service start
2021-07-05 00:00:08 usbshare[5115]: <6> 291212 No volume was mounted. The only filesystem types recognized are NTFS, FAT32 and HFS/HFS+
2021-07-05 00:00:08 usbshare[4983]: <6> 291212 No volume was mounted. The only filesystem types recognized are NTFS, FAT32 and HFS/HFS+
2021-07-05 00:00:08 usbshare[4841]: <6> 291212 No volume was mounted. The only filesystem types recognized are NTFS, FAT32 and HFS/HFS+
2021-07-05 00:00:07 remote-management[4386]: <6> 282505 Service stop

You are correct about the lease expiration, before this issue, whenever my ISP provided me with a new IP, it only took 2-3 Seconds to refresh with the new IP, But it never completely restarted the router.

Also please note, I have had my TP-link router configured in bridge mode with my ISP-provided modem for over 1.5 years.

Where the ISP-provided modem is just a dummy/bridge and just provides internet to my TP-link Router via PPPoE.

I initially thought it might be an issue with my ISP router I even had it changed by my ISP 2 times with different manufacturers' models.

But still, my TP-Link router is completely restarting randomly (~10 hours)

I am convinced there is an issue with my TP-link Router.

can any one help me on this?