I presume you're on Windows.
Does it happen with https repositories only?

Levente

On Fri, 20 Sep 2019, Marcel Taeumel wrote:

> Same. I just got the debugger and had to try again. :-(
>
>       Am 20.09.2019 01:55:19 schrieb Levente Uzonyi <leves at caesar.elte.hu>:
>
>       Hi Karl,
>
>       I've changed the method a bit, and I expect some of the tweaks to fix the
>       issue.
>       I don't have an easy way to test it on Windows, so please load
>       Monticell-ul.701, or just update your Trunk image, reenable the
>       preference, and let me know if it helped or stayed the same.
>
>       Levente
>
>       On Sat, 14 Sep 2019, karl ramberg wrote:
>
>       > I have not seen this error since I disabled preference "Use shared WebClient instance"
>       > We should consider disabling that preference on Windows.
>       > I'm not sure how to do platform specific preferences....
>       >
>       > Best,
>       > Karl
>       >
>       >
>       > On Tue, Sep 10, 2019 at 9:23 PM karl ramberg wrote:
>       > Debug log
>       >
>       > Best,
>       > Karl
>       >
>       >
>       > On Tue, Sep 10, 2019 at 12:06 AM Levente Uzonyi wrote:
>       > Hi Karl,
>       >
>       > Does the error happen if you disable the "Use shared WebClient instance"
>       > preference in the Monticello category?
>       > Are you behind a proxy?
>       > Do you have a firewall set up filtering outgoing requests?
>       > Do you connect to a wifi network, which hijacks requests and forces you to
>       > authenticate every once in a while?
>       > Does the error happen on a non-windows OS from the same network?
>       >
>       > The stack frame shown in the picture is unreleated to the problem. Is
>       > anything readable from the stream instance variable when the error
>       > happens?
>       >
>       > Levente
>       >
>       > On Mon, 9 Sep 2019, karl ramberg wrote:
>       >
>       > > This has been an issue on Windows for a long time.
>       > > When updating the image the first try always fails with this error.
>       > >
>       > > See screenshot
>       > >
>       > > Best,
>       > > Karl
>       > >
>       > >
>       > > bild.png
>       > >  
>       > >
>       > >
>       > >
>       > >
>       >
>       >
>       >
> 
> 
>