@ziondaman If opening the ports doesn't help, please refer to the below troubleshooting guide to check some basic settings: Why port forwarding feature is not working on my router? BTW, which port...

@RogerThat21 Yes, it could be the channel is crowded. You can try to modify the wireless settings on the router, such as wireless channel, channel width, and security, you can check the guide below:...

@cvi888 Have you referred to and confirm all the settings or parameters we published here? https://community.tp-link.com/en/home/forum/topic/270746 If yes, please provide additional information as...

@Normal_User Please choose this icon to upload a video about the issue, thanks:

@aarreddy You can install the firmware we provided, then confirm if the issue persists. BTW, are all devices experiencing the same issue, or some specific devices? What are those devices?

@Jarax I think you should be able to downgrade to the previous Archer C80(EU)_V1_210128, you can give it a go. Download and unzip the zip file, then upload it into the router as follows:...