There have been a few reports of that on here for iPhones - try these "fixes" - one should work for you - particularly the first two
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APPLE CONNECTION ISSUES
After a MacOS/iOS update, it may auto turn on Automatic Proxy Discovery for all Wi-Fi networks - so turn it off in network settings as per message 7. In iOs go to Settings>WiFi> tap the blue”I” icon and scroll down and make sure Configure Proxy/‘ is set to off - also that Configure DNS and Configure IP are set to automatic
https://community.virginmedia.com/t5/Networking-and-WiFi/Hub-5-macOS-Monterey/td-p/4885920
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Check this... no connectivity on Apple kit may be a MAC filtering issue for Apple devices - see if this has the solution for you….
https://community.virginmedia.com/t5/Networking-and-WiFi/Intermittent-iPhone-Apple-MacBook-amp-HP-Printer-connections-to/td-p/5321030
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Also, are you running a VPN - if so turn it off and see if that helps - also disable “Private Relay” if thats switched on in your iCloud settings on the phone/mac.
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“LIMIT I.P. TRACKING”
Switching this off solved the speeds issue here….
https://community.virginmedia.com/t5/Networking-and-WiFi/Wifi-slow-on-MacBook-Pro-but-fast-on-all-other-devices/m-p/5385539#M556440
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Cant connect as password is incorrect on iPhone (& Andrex)……. this sorted it…
https://community.virginmedia.com/t5/Networking-and-WiFi/Iphone-can-t-connect-to-Virgin-WIFI-Incorrect-Password-No-idea/td-p/5130799
Just moving SIM sorted it here
https://community.virginmedia.com/t5/Networking-and-WiFi/Iphone6s-will-not-connect-to-internet-via-wifi-PCS-and-other/m-p/5155730#U5155730
