I couldn't find any log files so I used the send logs function under the tools menu.
Found your logs, thanks. You have missing/problematic Windows USB drivers.
Wayne is most likely on the right path as to why this is the case, but if you have reason to believe your installation might have been corrupted you could reinstall the GS-911 PC application.
Your logs indicate a failure to load ftd2xx.dll which we ship in the USBDrv directories that should be located in your install directory. If they are missing, it's best to reinstall before considering a system restore or Windows troubleshooting.
I tried four times before the update was successful.
We had incremental improvements that worked against each other here that lead to extraction delay issues when updating from certain older versions through the web interface. If the delays add up you can get time-outs. This slipped through in-house and beta testing since we all update regularly, but was caught with regression testing. It has since been fixed by updating the protocol and moving more of the extraction control to the codeblock.
but the USB connection did not drop
The USB connection is not used for communication when using the web interface, so the driver issue you have would not impact this process.
I would like to see for myself what's going on.
Hope I covered everything?
Glad you are up and running, hope you get your drivers fixed.