Published: October 16, 2026
If your Android phone keeps dropping Wi-Fi or mobile data since the October 2026 update, the update may not be to blame. Google’s October 2026 Android Security Bulletin lists security patches only and mentions no connectivity bug. The cause could still be the update itself, a pending Google Play system update, or a network setting that no longer works with your router or carrier.
This guide helps you work out which connection is failing, then walks through seven fixes with exact steps. None of them needs a factory reset.
Quick diagnosis: which connection is failing?
Run these three checks:
- Turn Wi-Fi off and use mobile data for a few minutes. Does the problem continue?
- Connect your phone to a different Wi-Fi network, such as a friend’s network or your other phone’s hotspot. Does the problem follow your phone?
- Connect another device (a laptop or another phone) to your usual Wi-Fi. Does it drop too?
Then match the result:
- Wi-Fi drops on every network: the phone is the likely source. Start with Fixes 1, 2 and 4.
- Wi-Fi drops on one network, and other devices drop there too: the router is the problem. Go to Fix 6, and see our Wi-Fi fixes guide for more router-side causes.
- Wi-Fi drops on one network, but other devices stay connected: the phone and that router are not working well together. Try Fix 3, then Fix 6.
- Mobile data drops while Wi-Fi stays stable: the cellular side is unstable. Try Fixes 2 and 7.
- Both drop together: the cause is likely on the phone itself. Begin with Fix 1, then Fix 5.
If none of these fits, Fix 1 is the safest place to start. It is quick and changes none of your settings.
Menu names vary by brand and Android version. The paths below follow stock Android (Pixel). On Samsung and other brands, type the setting name into the search bar at the top of Settings.
Fix 1: Install pending Google Play system updates
Wi-Fi and telephony components are updated through Google Play system updates (Project Mainline), separately from the monthly security patch. Google has not said these updates fix connection drops, but installing any pending update removes one possible cause and is a quick first step.
- Open Settings, then Security & privacy, then System & updates, then Google Play system update. On Samsung and other brands, search for “Google Play system update” in Settings.
- Tap Update if an update is offered. If the screen says your system is up to date, nothing has changed, so go straight to Fix 2.
- Restart the phone after the update installs.
- Use the connection that was failing as you normally would for at least an hour, and watch whether it still drops.
Fix 2: Reset network settings
Removes: saved Wi-Fi networks and passwords, Bluetooth pairings, and mobile network settings, which may include custom APN entries. Apps, photos and files are not deleted.
Have your Wi-Fi password ready, and note any custom APN details your carrier gave you.
- On stock Android, open Settings, then System, then Reset options, then Reset Wi-Fi, mobile & Bluetooth. Newer Android versions split this into Reset mobile network settings and Reset Bluetooth and Wi-Fi, so run both if you see two options. Other brands use different names.
- Reconnect to your network and watch whether the drops return.
Fix 3: Test with the device MAC address
According to Google’s Android documentation on MAC randomization, Android 10 and later use a randomized MAC address by default, and the address stays the same for each saved network. If a router uses MAC filtering or address reservations based on the phone’s factory address, the randomized address will not match and the connection can fail or drop.
- Open Settings, then Network & internet, then Internet, and tap the gear icon next to your connected network.
- Find Privacy (sometimes under Advanced) and switch from the randomized option to Use device MAC.
- Reconnect and use the network normally for a day.
Treat this as a test, because randomization protects your privacy on public networks. If it helps at home, keep the device MAC for that network only. If it does not help, switch back to the randomized option.
Fix 4: Turn off Private DNS briefly
A DNS provider that is slow or unreachable can look like a dropped connection. While Private DNS is off, DNS lookups are not encrypted, so keep this a short test.
- Open Settings, then Network & internet, then Private DNS (older layouts place it under Advanced).
- Select Off and use the connection for a while.
- If the drops stop, the provider may be the cause, so enter a different one. If nothing changes, set it back to Automatic.
Fix 5: Rule out an app using Safe mode
VPNs, firewalls, Wi-Fi optimizer apps and battery savers can interfere with network connections.
- On a Pixel, press and hold the power button, touch and hold Power off, then tap OK to enter Safe mode. Steps differ slightly between brands.
- Safe mode runs only preinstalled apps. Use the phone for a while. If the drops continue, a third-party app is unlikely to be the cause.
- Restart normally to exit Safe mode.
- If the drops stopped in Safe mode, uninstall your most recently installed third-party apps one at a time, starting with VPN and security tools, and check after each one.
Fix 6: Restart the router and test each band separately
- Unplug the router for thirty seconds, then power it back on.
- Log in to its admin page (the address and password are usually printed on the router’s label) and check for a firmware update.
- Give the 2.4 GHz and 5 GHz bands separate names and connect the phone to one band at a time.
- If the drops stop on one band, keep using that band. If nothing changes, restore the original names.
If the drops happen on one network only, a full DHCP address pool, where the router has no free addresses left to hand out, can stop a device from reconnecting after a drop.
Fix 7: Lock the network mode to LTE for a test
If only mobile data misbehaves, this test shows whether the problem is tied to 5G coverage.
- Open Settings, then Network & internet, then SIMs, and select your SIM.
- Set Preferred network type to LTE and use mobile data for a while.
- If the drops stop, the problem may be tied to 5G coverage, so stay on LTE and ask your carrier to check 5G coverage in your area. If nothing changes, switch back, because LTE can reduce speed in strong 5G areas.
What Google has confirmed about the October 2026 update
Google published the Android Security Bulletin on October 5, 2026 and updated it on October 8 to add source code links. A security patch level of 2026-10-01 or later addresses every issue it lists. For Google’s own phones, the Pixel Update Bulletin, published October 6, names 2026-10-05 as the patch level that covers its entries and the Android bulletin. It also has a Functional patches section that points to the Pixel Community forum, so Pixel owners can check there for non-security fixes.
Two critical denial-of-service flaws (bugs that could make a service stop responding) affect Android 14 through 17. CVE-2026-58865 is in the Framework component and CVE-2026-55265 is in the System component.
Wireless code also appears in the Google Play system updates table: Telephony core (CVE-2026-58859) and Wi-Fi (CVE-2026-45524 and CVE-2026-49878). CVE-2026-58859 and CVE-2026-45524 are listed for Android 17 only, while CVE-2026-49878 is listed for Android 14 through 17.
The bulletin does not describe a connectivity bug, name affected phones, or state that these patches cause dropouts. Any claim of an official Wi-Fi or mobile data defect tied to this release should be treated as unverified until Google or your phone maker confirms it. Manufacturers publish their own release notes, so check the notes for your model.
When the problem needs outside help
If every fix fails, contact the party that matches your symptom. Include your phone model, security patch level, build number and a short description of when the drops happen. The first three are in the About phone section of Settings, although the exact location varies by brand.
- Both connections drop: your phone maker.
- Only mobile data drops: your carrier, who can check whether your SIM or account needs to be reset on their end.
- Only home Wi-Fi drops: your internet provider.
Frequently asked questions
Can I remove the October update to get my old connection back?
System updates cannot be uninstalled the way apps can. Returning to an earlier version usually means flashing an older factory image, which can erase your data and may not work at all on some devices. Try the fixes above first and wait for a corrective update if one is released.
Why does browsing work while Wi-Fi calling fails?
Wi-Fi calling registers with your carrier separately from ordinary internet traffic. Switch the feature off and on again under Settings, then Network & internet, then SIMs, then your SIM, then Wi-Fi calling. Restart the phone afterward. If registration still fails, contact the carrier.
Should a critical flaw in the bulletin make me delay updating?
Critical entries describe vulnerabilities that were fixed, not new ones. Delaying an update leaves those vulnerabilities open, so installing it is generally the safer choice, even if you then need a few minutes to adjust a setting.
Can battery saver or adaptive connectivity cause the same symptoms?
Yes. Battery saver can limit background activity, and Adaptive connectivity can switch networks automatically. Turn battery saver off for a day, and under Network & internet turn Adaptive connectivity off if your phone offers it (newer versions show two switches, so turn both off). Then see whether the drops change, and turn them back on if nothing does.
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