My device is iphone 11 but when i connect wifi internet workgin very slow
I have successfully connected with wifi. after connected wifi all application getting slow non of working fast
Check the route settings -> Recommended settings for Wi-Fi routers and access points
Recommended settings for Wi-Fi routers and access points - Apple Support
If you need help with your Wi‑Fi password
If you need help with your Wi‑Fi password - Apple Support
Contact your ISP
If they are On, turn Off Hotspot & VPN.
If you and your neighbors set WiFi to the same channel, they can interfere with each other. It is best to choose channel 1, 6 or 11. These do not overlap and therefore disturb each other as little as possible. You can use various apps to see which networks are active in your area, in order to choose the best channel for your own WiFi.
It is best to choose a WiFi scanner on a smartphone, so that you can measure WiFi activity in all places where you want to use WiFi.
See -> Network Analyzer - iOS -> https://apps.apple.com/us/app/network-analyzer/id562315041