Good suggestion

@MartinLewis Is there any evidence on the Log like which port is blocked etc? I suspect there is a loop on your switch network, so loop detection take effect in cycle.

@e0le I try to understand you via Google Translate. It seems that you cannot login the controller anymore? Are you till able to find the OC200 IP address and login it via local IP? If the controller...

@Libik No issue on my network. But if it is related to DNS, you can try to modify the DNS server on Internet settings page. I suggest test 8.8.8.8

@Upakovkashop I also did not test it. According to the document, it's better to have a clear sight between the CPEs. Check this guide: Long distance wireless connection concerns when using outdoor...

@jayb1 108E default IP is 192.168.0.1 That means if you connect a PC with static IP to it, you should be able to access 192.168.0.1. Note you can't connect a router to the switch at this time.