This is a tutorial and update with my windows 8 updating to windows 8.1 " free update" that takes a long time, and EZ Builder.
I could not connect to EZ Builder with my old parameters. I had to do a "refresh list" of com ports and "change" from com port 5 to port 3 and was able to connect. Your com ports may vary. try the lower one of your refreshed list.
After that my project ran successfully.
Maybe this will help someone else performing the windows update.
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Would be good to hear what others say who have upgraded to 8.1 too.
After the update I had to use the lower com port from the refreshed list.
I just checked again, it is com port 3 that works.
That is what worked for me to connect without pairing again. Maybe other PCs are different?
Here is my PC list after updating from windows 8 to 8.1.
Com port 3 works on my PC, 4 does not.
This list was after I resaved my file showing the default com port 3 appearing.
As an experiment I would suggest updating to latest software then deleting and re-adding the ezb and see if it changed.
PS. If it works on one of the two, then keep using it for now.