Forum Discussion
Smartscreen not working / delay in downloading files
Hi,
Not sure if this belongs in the Enterprise section but here goes; we're currently implementing Edge as our new default browser (large healthcare organization) in our VDI environment. Besides this issue, everything is working as intended.
The issue we're facing is that, on our VDI platform, SmartScreen doesn't work:
- When I test the demo.smartscreen.msft.net page, nothing happens - all the pages open without a warning.
- Downloading files (we test this wit Notepad++) have a significant delay; only after +- 20 sec you can see the download starting.
- This leads me to believe that something is broken with regard to SmartScreen in Edge.
I've tried different proxy settings (automatic vs fixed server entry), disabled our Trend Micro AV solution but all without any result.
We're not seeing this on our fysical endpoints so there's something goin on in our VDI platform. Is there any logging in Edge regarding SmartScreen that could help us out? We've disable the Windows Defender service because we're using a different AV product but even with the service enabled, there is no change in the observed behaviour.
We're using Edge 81.x but newer versions have the same issue. I've attached a video of the delay when downloading a file.
Note, the platform is still using Windows 7 as the new platform with Windows 10 is not yet ready for production use.
17 Replies
bhkumar007Microsoft
marceldk Regarding the demo pages not working, you can try checking edge://histograms/Microsoft.SmartScreen.ErrorState
For the download delay, you can try disabling SmartScreen and then download the same file. If it is indeed due to SmartScreen, then Download should start instantaneously this time
In a fresh browser session, perform the repro and then edge://histograms/Microsoft.SmartScreen should give you some data around SmartScreen which can help pinpoint the problem further
or you can use edge://tracing and enable the category 'SmartScreen' which should give more details
bhkumar007 thanks for the suggestions, never knew these items were available. I'm not sure what i'm looking at though; what does 0, 1, 2 etc mean with these histogram results (these results are only when clicking a few of the demo items on demo.smartscreen.msft.net).
Histogram: Microsoft.SmartScreen.ErrorState recorded 9 samples, mean = 1.3 (flags = 0x41)
0 ------------------------------------O (3 = 33.3%)
1 O (0 = 0.0%) {33.3%}
2 ------------------------------------------------------------------------O (6 = 66.7%) {33.3%}
3 ...
Histogram: Microsoft.SmartScreen.OnCompleteAsyncNoServiceTime recorded 9 samples, mean = 14034.3 (flags = 0x41)
0 ------------------------------------------------------------O (1 = 11.1%)
1 O (0 = 0.0%) {11.1%}
2 ------------------------------------------------------------O (1 = 11.1%) {11.1%}
3 ...
10 ------------------------------O (1 = 11.1%) {22.2%}
12 ...
10000 ------------------------------------------------------------------------O (6 = 66.7%) {33.3%}
Histogram: Microsoft.SmartScreen.PuaProtectionEnabled recorded 1 samples, mean = 0.0 (flags = 0x41)
0 ------------------------------------------------------------------------O (1 = 100.0%)
1 ...
Histogram: Microsoft.SmartScreen.SetAsyncTime recorded 9 samples, mean = 570515.7 (flags = 0x41)
0 ------------------------------------------------------------------------O (1 = 11.1%)
1000 ...
2005 ------------------------------------------------------------------------O (1 = 11.1%) {11.1%}
2187 ...
3097 ------------------------------------------------------------------------O (1 = 11.1%) {22.2%}
3378 ...
9588 ------------------------------------------------------------------------O (1 = 11.1%) {33.3%}
10458 ------------------------------------------------------------------------O (1 = 11.1%) {44.4%}
11407 O (0 = 0.0%) {55.6%}
12443 ------------------------------------------------------------------------O (1 = 11.1%) {55.6%}
13573 ...
24936 ------------------------------------------------------------------------O (1 = 11.1%) {66.7%}
27200 ...
64858 ------------------------------------------------------------------------O (1 = 11.1%) {77.8%}
70746 ...
5000000 ------------------------------------------------------------------------O (1 = 11.1%) {88.9%}
Histogram: Microsoft.SmartScreen.SmartScreenEnabled recorded 1 samples, mean = 1.0 (flags = 0x41)
0 O (0 = 0.0%)
1 ------------------------------------------------------------------------O (1 = 100.0%) {0.0%}
2 O (0 = 0.0%) {100.0%}
Histogram: Microsoft.SmartScreen.TimeoutState recorded 9 samples, mean = 1.1 (flags = 0x41)
0 O (0 = 0.0%)
1 ------------------------------------------------------------------------O (8 = 88.9%) {0.0%}
2 ---------O (1 = 11.1%) {88.9%}
3 ...
Histogram: Microsoft.SmartScreen.UrlCheckWentAsync recorded 9 samples, mean = 1.0 (flags = 0x41)
0 O (0 = 0.0%)
1 ------------------------------------------------------------------------O (9 = 100.0%) {0.0%}
2 O (0 = 0.0%) {100.0%}
Histogram: Microsoft.SmartScreen.UrlThreatType recorded 9 samples, mean = 0.0 (flags = 0x41)
0 ------------------------------------------------------------------------O (9 = 100.0%)
1 ...- bhkumar007
marceldk 2 indicates the internal code error in SmartScreen (looks like it is related to environment you are using). Can you run edge://tracing with SmartScreen category? If there is any error message in there, that will help pinpoint the issue.
- Does it only happens on VDI?
Try disable all extensions in Microsoft Edge and see if problem persist?
Try report this issue through Feedback option, so Microsoft Edge team could investigate it.- Yes, we're only seeing this on VDI. Besides uBlock Origin we do not have any extensions installed - but even with that one removed, the issue persist. I did notice that when I install the Beta/Dev channel next to the stable version we're rolling out, SmartScreen is working in Dev.
This lead me to believe that it might have been my Edge profile so I renamed %localappdata%\Microsoft\Edge but that didn't work either.
I'll try the Feedback option, thanks!
