MEmu Wi-Fi Settings Not Saving? Fix Proxy, IP, DNS, and VM Problems

When MEmu Wi-Fi, proxy, or IP settings refuse to save, the visible Android setting is not always the real cause. MEmu Play runs Android inside a Windows-hosted virtual machine, so connectivity depends on both the Android VM and the Windows network stack. A setting may be attached to the wrong virtual Wi-Fi network, overridden by an app, lost when the VM shuts down incorrectly, or stored in a damaged VM image. Follow the fixes below in order, changing one variable at a time and testing after each change.

1. What Does Not Saving Actually Mean?

Begin by identifying the exact symptom. This prevents an unnecessary reinstall when the problem is only a misunderstood Android setting or a proxy that is unreachable from the VM.

• The proxy fields become blank immediately after you tap Save.
• The settings remain until MEmu restarts, then return to their defaults.
• The proxy appears saved, but apps still connect directly or cannot connect.
• A static IP saves but causes Wi-Fi to show no internet access.
• Android reports Wi-Fi connectivity while Google Play or one particular app remains offline.
• Every cloned or newly created Multi-MEmu instance has the same failure.

Take a screenshot of the current configuration before changing it. Record the selected network name, proxy hostname, port, IP assignment, DNS values, MEmu instance name, Android image version, and whether the image is 32-bit or 64-bit. Never record or share proxy passwords, account credentials, or private tokens.

1.1 Separate Saving Failures From Connectivity Failures

A saved configuration can still be invalid. For example, an Android proxy can remain visible after reopening the network editor while the proxy server itself is offline, blocked by Windows Firewall, bound only to localhost, or listening on a different port. Likewise, an incorrect static gateway or DNS server can make a successfully saved IP configuration appear broken.

After tapping Save, leave the settings page, reopen the same Wi-Fi network, and inspect the fields. If the values remain, saving worked and the next task is diagnosing connectivity. If they disappear, focus on the selected network, Android persistence, shutdown behavior, and VM image health.

2. Edit the Correct Android Wi-Fi Network

MEmu normally presents Android with a virtual Wi-Fi connection. It is not necessarily a direct copy of the SSID used by the Windows computer. Editing a remembered network that is not currently active will not change the route used by apps.

1. Start the affected MEmu instance and wait for Android to finish loading.
2. Open Android Settings, then open Wi-Fi.
3. Identify the network marked Connected.
4. Long-press that network or use its edit or manage option, depending on the Android image.
5. Enable the advanced options if proxy and IP controls are hidden.
6. Enter the required values and tap Save.
7. Turn Android Wi-Fi off and on, or disconnect and reconnect the virtual network.
8. Reopen the connected network and confirm that the values remain.

The exact labels vary between Android 5.1 and Android 7.1 images. A 32-bit image can also expose a different settings interface from a newer 64-bit image. The principle is the same: edit the active virtual network and reveal its advanced controls before saving.

2.1 Validate Proxy and Static IP Values

For a manual proxy, enter a hostname or IP address without an URL path. Use the separate port field for the listening port. Unless the proxy tool explicitly says otherwise, do not enter prefixes such as HTTP or HTTPS in a hostname-only field.

If the proxy runs on the Windows host, do not assume that Android's loopback address reaches it. Inside the VM, localhost and 127.0.0.1 refer to Android itself, not Windows. The proxy service must listen on an interface reachable from the VM, and Windows Firewall must permit the connection on the appropriate network profile. Avoid opening the service broadly to public networks unless that exposure is intentional and secured.

Use a static IP only when the MEmu networking mode and local network require it. The address, prefix length or netmask, gateway, and DNS servers must belong to a coherent configuration. Guessing these fields can remove connectivity even though Android saves them correctly. If uncertain, restore IP settings to DHCP and test the proxy separately.

3. Close Apps, Reconnect, and Restart Correctly

Android apps can hold existing sockets, cached DNS results, or app-level proxy sessions. Changing the Wi-Fi configuration does not guarantee that an already running app will establish a new connection immediately.

1. Save the Wi-Fi change.
2. Close the affected app from Android's recent-apps screen.
3. If necessary, use Android Settings to force stop that app.
4. Disconnect and reconnect Android Wi-Fi.
5. Launch a browser or another simple network client before reopening the affected app.
6. If the result is unchanged, shut down the MEmu VM normally and launch it again.

Do not terminate MEmu repeatedly through Task Manager unless the emulator is frozen. Abrupt termination can prevent pending Android writes from reaching the VM image. If settings survive a normal restart but disappear after a forced termination or Windows crash, the issue is likely related to write completion or image consistency rather than the Wi-Fi form itself.

3.1 Check App-Specific Network Controls

Some apps ignore Android's system proxy, use their own proxy or VPN implementation, enforce encrypted DNS, pin certificates, or reject intercepted HTTPS connections. Browsers may also have secure DNS settings independent of Android. VPN, firewall, ad-blocking, and traffic-capture apps inside MEmu can replace routes or DNS behavior.

Test at least two unrelated apps. If a browser works while one app fails, inspect that app's settings and compatibility requirements. If Google Play alone fails, confirm that the VM date and time are correct and that Google Play Services can run. Do not clear Google Play Services or Play Store data, and do not remove the Google account, as an early troubleshooting step. Those actions can sign the VM out and erase application state without repairing Wi-Fi persistence.

4. Determine Whether Windows Is Causing the Failure

If every MEmu instance loses connectivity, the common layer is probably Windows, MEmu's virtual networking components, security software, or the upstream network. First confirm that Windows itself can browse normally. Then temporarily disconnect any Windows VPN or manually configured Windows proxy, if doing so is permitted in your environment, and retest MEmu.

Open Command Prompt and run ipconfig /all to inspect adapters, gateways, and DNS servers. Use ipconfig /flushdns to clear the Windows DNS resolver cache when host-side name resolution appears stale. These commands do not configure Android, but they help determine whether the host has a valid network path.

Corporate security agents, endpoint firewalls, VPN clients, and antivirus network filters can block virtual adapters or traffic between the VM and host. Review their logs and create a narrow, documented allowance if needed. Do not disable antivirus, firewall protection, or Windows security features broadly just to test MEmu. If a temporary test is authorized, disconnect from untrusted networks, keep it brief, restore protection immediately, and document the result.

4.1 Test DNS Separately From General Connectivity

A DNS failure can look like total network failure. If an app can reach a known IP address but cannot resolve hostnames, focus on DNS. Return Android IP assignment to DHCP first. If custom DNS is required, use the servers approved for your network and verify that the VM can reach them.

Do not assume that public DNS is always appropriate. Enterprise networks may require internal DNS for authentication, private names, or filtered access. A Windows VPN may also supply DNS servers that are unavailable through MEmu's default virtual network.

4.2 Review Bridge Mode Carefully

Bridge mode can give a VM more direct access to the local network, but it is not a universal cure for settings that do not persist. Test the default network mode first. If bridge mode is required, bind it to the Windows adapter that is actually carrying traffic, such as the active Ethernet or Wi-Fi adapter, and restart the VM after changing the mode.

Wireless drivers, managed networks, captive portals, and VPN clients may restrict bridged virtual machines. If connectivity breaks only in bridge mode, return to the previous mode before modifying unrelated Android settings. Avoid changing adapter bindings across several Multi-MEmu instances simultaneously because that makes the result difficult to interpret.

5. Use ADB and Command-Line Diagnostics

ADB can show whether Android accepted a setting even when the interface is misleading. Connect only to your own local MEmu instance, enable debugging only when required, and avoid exposing ADB to untrusted networks. Depending on the installation, you may use MEmu's bundled ADB tools or an approved Android platform-tools installation.

Useful read-only checks include adb devices, adb shell ip addr, adb shell ip route, and adb shell getprop. The exact output and available commands depend on the Android image. Look for an assigned address, a default route, and DNS-related properties. Compare output before and after saving the setting.

MEMUC, MEmu's command-line control utility, can help identify and restart the intended instance when several Multi-MEmu VMs exist. Confirm the instance name or index before issuing any command. Do not copy destructive MEMUC, ADB, or shell commands from unknown sources, and do not modify Android settings databases directly unless you have a recoverable backup and understand the image-specific schema.

5.1 Distinguish Network Problems From File Transfer Problems

MEmu shared folders are host-to-guest file-system mappings, not proof that Android has internet access. A working shared folder does not establish that DNS or proxy routing works. Conversely, a broken shared folder may result from Windows permissions, a moved path, antivirus controls, or MEmu integration components while networking remains healthy.

Test shared folders independently with a harmless file. Verify that the Windows source folder still exists and that the current Windows account can access it. Avoid placing VM images or shared-folder roots in aggressively synchronized cloud directories while troubleshooting, because file locking and on-demand storage can complicate writes.

6. Compare the Affected VM With a Fresh Instance

A fresh VM is one of the safest ways to separate an instance-specific problem from a host-wide problem. In Multi-MEmu, create a temporary instance using a supported image already available in your installation. Match the affected instance's Android generation and architecture when possible, then test the same network change before installing extra apps.

• If the setting saves in the fresh VM, the original VM configuration or image is probably damaged.
• If it fails in both VMs, investigate Windows networking, MEmu components, and security software.
• If it fails only after installing a particular VPN, proxy, firewall, or automation app, that app is likely involved.
• If Android 5.1 works but Android 7.1 does not, compare image-specific compatibility and settings rather than assuming Windows is broken.

Do not clone the suspected damaged VM for this comparison. A clone can reproduce the same corrupted state. Build a genuinely new instance and make only the minimum network change needed for the test.

6.1 Reset the VM Without Losing Evidence

Before any reset, export or copy important app data through supported methods. Confirm that shared-folder files really exist on Windows and are not stored only inside Android. Record account details, instance configuration, and any required authenticator recovery information.

Start with a normal Android reboot and a full MEmu shutdown. If MEmu offers a restore or reset action for the instance, understand exactly what it removes before proceeding. A factory-style reset erases Android apps, accounts, and local files. Deleting the VM is more destructive and should occur only after a clean comparison VM works and necessary data is backed up.

7. Recognize a Damaged VM Image

Image corruption becomes more likely when several unrelated Android settings revert, apps report storage errors, the VM frequently fails to boot, Android repeatedly performs recovery work, or settings disappear only after shutdown. One proxy field behaving unexpectedly is not enough evidence by itself.

Compacting a VM image is primarily a storage operation, not a standard repair for Wi-Fi persistence. It can be intensive and should not be attempted without adequate free disk space and a backup. Never interrupt image maintenance or power off Windows during the operation.

If a fresh image saves settings correctly, migrate only necessary data to it rather than repeatedly repairing an unstable VM. Keep the old instance intact until the replacement has been verified. Delete it only after confirming backups and account recovery.

7.1 Settings That Usually Do Not Fix Wi-Fi Persistence

Render mode, OpenGL, and DirectX primarily affect graphics. CPU and memory presets affect performance and resource availability. VT, Hyper-V mode, and MEmuHyperv affect virtualization behavior. These settings can influence whether MEmu starts or runs reliably, but they do not normally control whether an Android proxy field saves.

Change them only when logs or startup behavior point to a virtualization or stability problem. Before enabling or disabling Hyper-V, MEmuHyperv, Windows Hypervisor Platform, Virtual Machine Platform, or related security features, check dependencies carefully. WSL2, Docker Desktop, Windows Sandbox, virtualization-based security, and other software may require them. Make a reversible plan and restart Windows only when the selected change requires it.

The operation recorder and synchronizer can repeat actions across instances, but they should be disabled during diagnosis. An old recording or synchronized action could reopen settings, reconnect networks, or apply changes to the wrong VM, obscuring the real result.

8. Repair or Reinstall MEmu Only as a Last Resort

Consider repair or reinstall only after a fresh VM also fails and Windows networking has been checked. Back up every needed VM and shared-folder file first. Note which Android images, instance architectures, and custom settings are in use. An uninstall may remove local VM data depending on the choices presented, so read each prompt rather than assuming images will remain.

Use the official MEmu installer obtained through a trusted channel. Do not combine a reinstall with antivirus removal, Hyper-V changes, network resets, and driver changes in one attempt. If connectivity returns, you will not know which action mattered.

A Windows network reset is also a late-stage step because it can remove and reinstall network adapters, clear custom configurations, and disrupt VPN or enterprise software. Obtain administrator or IT approval on managed systems. Prefer targeted diagnostics and vendor-supported repair procedures first.

9. Final Resolution Checklist

Use this checklist after the fix to confirm that the problem is genuinely resolved rather than temporarily hidden by cached connections.

• The active Android Wi-Fi network shows the intended proxy, IP, and DNS values.
• The values remain after leaving and reopening the network settings page.
• Android Wi-Fi reconnects without displaying a persistent connectivity warning.
• A browser resolves hostnames and loads a new page rather than cached content.
• The affected app works after being fully closed and relaunched.
• The configuration survives a normal MEmu shutdown and restart.
• ADB shows a valid address and default route when ADB diagnostics are enabled.
• The proxy is reachable from the VM and is not bound only to Windows localhost.
• Windows VPN, firewall, DNS, and security controls are in their intended state.
• Shared-folder access has been tested separately from internet connectivity.
• A fresh Multi-MEmu instance behaves consistently with the repaired instance.
• No unnecessary changes were made to render mode, VT, Hyper-V, or Windows security.

If the setting remains saved but only one app fails, continue with that app's proxy, VPN, certificate, DNS, and Google Play Services requirements. If settings disappear across multiple clean VMs, collect the MEmu and Windows diagnostic details, including image type, network mode, security software, and reproducible steps. That evidence is more useful than repeatedly resetting Android or deleting working instances.