I am also a user of China Telecom in China, and recently there has been a ventilation issue with ARC. I will first use Surge to redirect api.roonlabs. net to Hong Kong, and then switch the diversion to DICT later. Go ahead and refresh the ARC connection again, it will become ready. Then switch back to Hong Kong. Wait until the next PPPOE refresh IP for about 3 days. We need to do it again. So I didn’t understand. Is it difficult to develop an interface that allows users to input their own roon core address and port?