@esPA Have you tried my previous suggestions replied to the OP? You should give that a go and confirm if there is an issue with the ISP or the router. BTW, what is the model number and hardware...

@Serj Hello, apologies for the super late reply. I have sent you a PM, please check and confirm, thanks.

@tomjb Thank you for posting on the TP-Link Community. Can you please kindly confirm again the model number of the TP-Link device? You may find it on the device label or sticker, where shows you a...

@NET-Head Thank you for asking again. As confirmed by zexoni70 that there is no whitelist for ACL when the C80 is working at AP mode. If you do need the whitelist feature, please change it to router...

@crevent Thank you very much for getting back. I have confirmed this issue you are reporting to the engineers, and they confirmed that this V5 1.0.9 Build 180808 Rel.1004n is a customized firmware...

@dalpihe @kennyrogersjr Hi, have you both referred to adenhaan's suggestions to disable the SmartIP feature on the C2300v1, which should stop the frequent DHCP request from the network? Please check...