dcsang

Support is basically suggesting safe mode installation. I intend to find the source of this problem and will share the result if successful. Thanks!

What port(s) should explicitly allow in ESET firewall? I checked the firewall logs and did not see anything being blocked during the update attempt. Since I'm now on the current version I'll have to wait until the next release to check safe mode.

I've manually installed several versions since my initial post because CCleaner will notify me of updates but fail to download them. I initiated debug mode with the following results. I didn't see any alerts or log entries from Malwarebytes or ESET Smart Security and I also tried disabling both applications. [00:27:30::111][INFO ] Application Started [00:27:30::661][DEBUG] CUpdateCustom::OnCheckSuccess - Setting UpdateKeyTime to Now [00:27:30::661][DEBUG] AutoUpdateServiceImpl::OnFinished - UpdateCompletion=0 UpdateType=3 [00:27:32::681][ERROR] Error updating CCleaner - 0x2efe: The connection with the server was terminated abnormally [00:27:32::681][DEBUG] AutoUpdateServiceImpl::OnFinished - UpdateCompletion=5 UpdateType=3 [00:27:32::739][DEBUG] CUpdateCustom::OnCheckSuccess - Setting UpdateKeyTime to Now [00:27:32::740][DEBUG] AutoUpdateServiceImpl::OnFinished - UpdateCompletion=0 UpdateType=3 [00:27:35::289][ERROR] Error updating CCleaner - 0x2efd: A connection with the server could not be established [00:27:35::289][DEBUG] AutoUpdateServiceImpl::OnFinished - UpdateCompletion=5 UpdateType=3 [00:27:35::352][DEBUG] CUpdateCustom::OnCheckSuccess - Setting UpdateKeyTime to Now [00:27:35::352][DEBUG] AutoUpdateServiceImpl::OnFinished - UpdateCompletion=0 UpdateType=3 [00:27:36::329][ERROR] Error updating CCleaner - 0x2efe: The connection with the server was terminated abnormally

Thank you. I updated as suggested and will wait for the next release.

Hello, I have the pro version of CCleaner and it properly alerts me of new releases. After clicking 'Yes' to proceed I immediately receive the message "CCleaner could not be updated. 0x2efe: The connection with the server was terminated abnormally". Any thoughts? Manual downloads and installations work fine. Thanks!