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Router does not reply ARP

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Jorgensen

Occasional Visitor
Hi,
I have a problem with my NAS suddenly seems to drop off the local network, it typically happens when I copy files to the NAS (SMB, FTP) from a Win10 PC. To debug the issue, I made a Wireshark capture during the last connection issue. From the capture I see that the NAS keeps sending "Who has 192.168.87.1 ? Tell 192.168.87.120". My Asus RT AC68U Merlin 384.7_2 (192.168.87.1) never responds to this ARP and the NAS (192.168.87.120) keeps sending this ARP again and again. After several minutes the issue resolves itself (not sure if I have captured this). The capture also reveals that the Win10 PC sends "Who has 192.168.87.120 ? Tell 192.168.87.243" when I attempt to start a FTP transfer to the NAS.
The NAS IP address is manually assigned in the Asus router. Win10 PC get the IP address from DHCP.

This is the first time I have used Wireshark, is it possible to export the capture as a text file and copy snippets to this forum if necessary for debugging? And I am by no means an network expert, thus this might not be the root cause of my problem. So have you any ideas how to debug any further?

Overview of my network:
Asus RT AC68U <---> Asus RT AC66U (Wireless bridge mode) <--- Cable ---> NAS
Win10 PC connects via WiFi
IP address of the Asus RT AC66U is 192.168.87.119.

After writing the above, I checked the Router log, and it contained an error, not sure if it is related though:
[tdts_shell_ioctl_sig_op_load:95] tdts_core_rule_parsing_trf_load() fail!
 

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