You're able to see the traffic on your Mac machine but your iOS or Android Devices could not access the Internet after changing the Proxy Config in the Wifi Setting.
Couldn't access to Proxyman local server http://proxy.man/ssl for installing the Proxyman Certificate
Please make sure to double-check the following steps:
If they're on a different network, they are unable to connect to each other.
By default, VPN will navigate all traffic go through the VPN server instead of the Proxyman Proxy server (at 9090). Therefore, there are none requests that appear on the Proxyman app.
Turn OFF all VPN apps will fix it
For iOS Devices: Navigate to Setting -> General -> VPN and make sure the VPN status is OFF
For Android Device: Find the VPN setting on the Setting app and turn it OFF
For macOS: Quit all VPN apps
By default, a Firewall might block all incoming traffic to your mac. Thus, your remote devices might not be able to connect to Proxyman.
On macOS: Navigate to System Preference -> Security & Privacy -> Firewall tab -> Option
Block All incoming connections is OFF
Proxyman app is allowed incoming connection
If there is no Proxyman app, please add the Proxyman app by clicking on + button
Automatically allow built-in software to receive incoming connection is ON
Automatically allow downloaded signed software to receive incoming connections is ON
Some companies block certain ports by default. Therefore, your iOS devices couldn't access to Proxyman's port at 9090.
If you follow all the above steps and all configuration is correct but it hasn't resolved your cases yet.
Please try to ON/OFF your Wifi, Forget the Wifi Network (iOS) and Restart the Computer.
Double-check the Wifi Connection in the Emulator. It's must be Connected Status (not Limited Connection or No Internet)
If it happens, please try to forget the network and re-connect the Wifi.
From Android Emulator API 30+, it requires extra steps to trust the Proxyman Certificate
Open http://proxy.man/ssl from Google Chrome to download the certificate
Setting app -> Security -> Encryption & Credentials -> Install a Certificate -> CA Certificate -> Install Anyway and Select CA Proxyman Certificate in your storage
You can verify that by opening Trusted Credentials -> User Tab
It probably dues to the Android devices/emulators, the only way might fix it is to change the DNS from your Mac or Android Device to 18.104.22.168
On macOS: Open System Preference -> Network -> Select Wifi -> Advanced -> Select DNS Tab -> Enter 22.214.171.124 on DNS Server Table
On Android Device: Open Wifi Setting -> Set DNS as 126.96.36.199
Read more at https://github.com/ProxymanApp/Proxyman/issues/636