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When you export a large report to Excel, you receive the following error:
Maximum request length exceeded.
Reports that exceed 4 MB cannot be exported due to the default limit on the size of HTTP requests.
Create a backup of C:\inetpub\SolarWinds\web.config
Open the web.config file, and search for httpruntime.
Replace the httpruntime entry with the following:
<httpRuntime requestValidationMode="2.0" maxRequestLength="1048576" executionTimeout="3600" />
Save the file.
You may need to wait a few minutes before trying to export the report again.