Are there any common issues with MMS proxy settings on iPhones

1. Inability to Enter MMSC or MMS Proxy: Some users report that their iPhone settings only allow input for the APN, leaving the MMSC and MMS Proxy fields inaccessible. This can occur on various models, such as the iPhone 6s. A potential solution is to reset the network settings, which may restore access to these fields[1].

2. Proxy Settings Not Taking Effect: Users have experienced situations where they configure the proxy settings correctly, but the proxy does not function as expected. This can lead to data being routed directly instead of through the specified proxy. A common fix suggested is to reset the network settings and re-enter the proxy information[4].

3. Network Configuration Issues: Sometimes, even after entering the correct settings, users find that their devices do not recognize the proxy configuration. This can be particularly frustrating when the same settings work on other devices. In such cases, resetting the network settings is often recommended as a troubleshooting step[4].

4. Carrier-Specific Limitations: Different carriers may have specific requirements or limitations regarding MMS settings. Users should ensure they are using the correct settings for their carrier, as incorrect configurations can prevent MMS from functioning properly[5].

5. Software Updates: Issues may also arise due to outdated software. Users are advised to check for and install any available carrier updates to ensure compatibility with MMS settings[1].

These issues highlight the importance of correctly configuring MMS settings and the potential need for troubleshooting steps such as resetting network settings or updating software.