Hi,

Error 633 means that your modem is not configured properly. It will be best if you download and install the latest driver for your modem in the manufacturer's website. 

Let us know if you have any other questions.

Modem configuration and its drivers are exactly the same as before updating to Creators Update.

I tried two different modem ZTE and Huawei both did not worked for me. Tried to find solution but have to roll back the update. Its surprising that same driver works for anniversary update and fails to work on creators update.

Will only update when the issue get resolved.

I had same problem with BSNL 3G modem. Tried all solutions like changing VPN port number, changing COM port, nothing worked. Rolled back to Anniversary Update and it works perfectly.

Yes, same problem. I tried different modem and software but i didn't helped. 

Yesterday a new update was released for creators update KB4015583. Not sure if it has solved the issued.

Hi Nikhil,

There may be several factors on why your USB modem is not working with the Creators update. We suggest that you also try the troubleshooting steps found on this link so we can isolate the issue.

Keep us updated with the status of your concern and we'll be glad to assist you further.

Hi Nikhil,

There may be several factors on why your USB modem is not working with the Creators update. We suggest that you also try the troubleshooting steps found on this link so we can isolate the issue.

Keep us updated with the status of your concern and we'll be glad to assist you further.

Hi Katrina,

Troubleshooting did not helped. Even after setting up Dial up connection, we are getting "Error 633 - the modem (or other connecting device) is already in use.." I even tried setting APN manually, but nothing helped. Finally i rolled backed the update. 

Please help.

Since you said that you've rolled back to the Anniversary Update, we suggest that you try to download and install the Creators Update manually. You can download it here. Please also make sure that the drivers for your USB modem is up-to-date.

Please update us with the progress.