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How to Fix Excel Solver Add-In Not Loading After an Update
Question details
The user is unable to load the Excel Solver Add-In after a Windows or Office update, particularly when the computer is connected to the internet.
- Product
- Microsoft Excel 365
- Device & OS
- Windows
- Scenario
- Attempting to use the Excel Solver Add-In for data analysis and modeling after a recent system or software update.
- Observed behavior
- The Solver Add-In stops loading and becomes unavailable when connected to the internet, but functions normally when the computer is disconnected from the network.
Ensure you have administrative privileges on your Windows account, as troubleshooting network firewalls and creating new user profiles requires admin access.
Temporarily Disable Firewall and Proxy Settings
Since the add-in functions offline, network security settings or proxies may be blocking Excel from loading the add-in when connected to the internet.
Network conflicts following an update can cause Office 365 to fail when attempting to verify or load add-ins online. Testing with firewalls disabled helps isolate the issue.
Disconnect your computer completely from Wi-Fi or Ethernet, open Excel, and verify that the Solver Add-in loads correctly.
Reconnect to the internet. Go to Windows Settings > Update & Security > Windows Security > Firewall & network protection, and temporarily toggle off the active network firewall.
Navigate to Windows Settings > Network & internet > Proxy, and disable any manual proxy configurations.
Restart Microsoft Excel and attempt to launch the Solver Add-In to see if the issue is resolved.
Test Solver in a New Windows User Profile
A corrupted Windows user profile can cause application-specific glitches after an update. Creating a new profile helps determine if the issue is system-wide or user-specific.
Document and Report to Microsoft Support
If the issue persists across different networks and user profiles, it is likely a bug introduced by the recent update that requires an official patch.
Use WPS Spreadsheets for Uninterrupted Data Analysis
If recurrent Excel updates are disrupting your workflow and breaking essential add-ins, consider switching to WPS Office. WPS Spreadsheets offers a highly compatible, lightweight, and free alternative with stable data analysis tools that work seamlessly whether you are online or offline.
- 1. Download and Install WPS Office: Visit the official WPS website and download the free office suite for your operating system.
- 2. Open Your Spreadsheets: Launch WPS Spreadsheets and open your existing Excel workbooks. They will load exactly as they do in Microsoft Office.
- 3. Perform Data Analysis: Navigate to the Data tab to utilize built-in data tools without needing to troubleshoot complex third-party add-in errors.
Frequently Asked Questions
Why does the Excel Solver Add-In only work when offline?
Sometimes network security protocols, firewalls, or proxy settings conflict with how Office 365 attempts to verify or load add-ins over the internet. Disconnecting from the network forces Excel to use the locally cached version of the add-in.
How do I check if my Excel Solver Add-In is disabled?
Open Excel and go to File > Options > Add-Ins. In the Manage drop-down menu at the bottom, select 'Disabled Items' and click Go. If the Solver Add-in is listed, select it and click Enable.
Will rolling back a Windows update fix the Solver issue?
If the problem started immediately following a system update, rolling back to the previous Windows build or reverting to an earlier Office version can temporarily bypass the conflict until Microsoft releases an official fix.
