Greetings MechWarriors,

Some players are experiencing issues wherein the MWO client is either forcing a fresh download of the full Install Base or erroneously stating that a patch is required.
There are unfortunately a couple of distinct issues that can lead to this, and at this time there is no singular catch-all solution.

Until we can resolve each of these issues behind-the-scenes to prevent them from occurring, we’ve outlined the most common steps that should be able to resolve them if they do occur with your MWO client.

We strongly recommend attempting to run your MWO client after each of these steps, as there is a possibility that only one of these steps will be required in your case.

Flush your DNS

Change your DNS settings

Using the information provided by OpenDNS or Google, please apply either of those DNS settings to your system.

Run the MWO Repair Tool

• Run the MWORepairTool.exe located in your C:\Program Files (x86)\Piranha Games\MechWarrior Online\Bin32 folder (or in whichever folder you located your MWO install).
  
• Start Scan. Please note that this will take a fair bit of time to complete.
  
• If necessary, ensure that you Allow/Permit any firewall notice that may appear regarding the Repair Tool.
  
• Once the scan is complete, select Fix Errors (even if no mismatches/errors were found). This will force a fresh download of the MWO game data directly from the main site, and will circumvent any download server issues that may have been causing this problem in your client.
  

Last resort: Perform an uninstall/reinstall of MWO

• Uninstall MWO using the Microsoft Fix-It Tool, located here
  
• Reboot.
• Re-install MWO using a fresh instance of the installer, located here
• If feasible, please temporarily deactivate (or apply specific permissions for) any anti-virus or firewall software you may have in place, for the duration of the installation/patching process.

If the problem persists after performing all of the steps listed above

Please e-mail a support ticket to support@mwomercs.com with the subject heading ‘Endless Patching’, and provide us with the information outlined below.

• The results of a DirectX Diagnostic
  
• Copies of the bootstrap_patcher_log and frontend_patcher_log located in your C:\Program Files (x86)\Piranha Games\MechWarrior Online\Bin32\PatcherLogs folder (or in whichever folder you located your MWO install).
  

How to obtain a DxDiag

• Press Windows Key + R
  
• Type DxDiag
  
• Click Save All Information. If prompted about WHQL drivers, click no.
  
• If the Save All Information button is not present, simply click on Run (32/64 bit) DxDiag. The Save All Information button will appear after the diagnostic.
  
• Attach the file to this support ticket. Please do not copy/paste the contents in the body of your message.