Manual Patch Scan Failure: Scanning Timed Out

You are trying complete patch scanning manually. However, you cannot complete this task as you see the error 'Scanning Timed Out' on the screen.

This error may occur because of one of the following reasons:

Data is blocked by the firewall on the computer on which the RMM Central server is installed
Scanning fails on computers running in remote offices
Multiple IP addresses have been enabled in the computer in which the RMM Central server is installed

To complete patch scanning manually, follow the resolutions given below:

Unblock firewall ports: Ensure that the following ports are added to the exception list of the firewall in the computer in which the RMM Central server is installed
- 8090/8091: Used for agent-server communication and to access the Web console
- 8095: Used to complete on-demand tasks like inventory scanning, patch scanning, remote control, remote shutdown and moving agents from one remote office to another
Note: You will still have problems related to the firewall if the Group Policy is configured to not allow exceptions. To avoid these problems, you must modify the GPO accordingly to allow the RMM Central agents to communicate with the RMM Central server using the default port number 8090. You may also use any other ports that you have configured while installing the RMM Central server.
Ensure that computers are switched on and the RMM Centralservice is running: If the scanning has failed for computers in remote offices, complete the following tasks:
- Check whether the computers are switched on and running when the scanning is in progress
- Ensure that the 'ManageEngine Endpoint Central MSP-Remote Control' is running in the client computers
Eliminate issues that arise because of multiple IP addresses: When the computer, in which the RMM server is installed, has multiple IP Addresses, like a virtual adapter or two NICs, disable them.

Applies to: Patch Scanning, Manual Patch scanning, Patch Scanning Failure, Scanning Timed Out

Keywords: Scan Patches, Patch Scan Failure, Scan Patches Manually