If you are trying to connect to the internet using a Wi-Fi, Ethernet, or a Wi-Fi connection and you suddenly encounter Error 633, then read on as this post will guide you on how you can fix this problem in your Windows 10 computer.
According to users who encountered the same problem, when they try to connect to the internet, an error pops up that states, “The modem or other connecting device is either already in use or not appropriately configured”. This error is the VPN Error 633 which indicates that the modem is malfunctioning due to some broken configuration. It is possible that this broken configuration is caused by the WAN Miniport device which is associated with your preferred VPN protocol. It could also be due to the TCP port that’s required for the VPN connection to work might be used by another application.
There are instances when Error 622 could occur when there are multiple internet connections set up on one device or when the communication port is exploited by another program. It could also occur when the affected modem is not bound to one specific device. Thus, any model and computer can be affected by this problem.
The first and basic thing you can do to fix the VPN Error 633 is to turn off or unplug the modem your computer is using and then plug it back in to see if the problem is fixed. If not, then there are several other potential fixes you need to check out to resolve the problem. You can try the suggestions provided below and see if any of them help.
The next thing you can do to fix the error is to reserve the TCP port explicitly and to do that, follow the steps below.
You could also try removing any irrelevant device programs since it is possible that any of these programs could be the one that’s causing the modem to malfunction. These irrelevant programs could be an internet booster or third-party tools that comes with the modem and so on. These programs are not necessarily needed for your modem to function. Thus, if you want to fix the VPN Error 633, you can try uninstalling them and see if it fixed the error.
You might also want to update the Network Adapter drivers by following these steps:
Note: If updating the network drivers didn’t help in fixing the VPN Error 633, you can also try to uninstall the very same drivers and restart your Windows 10 PC. After that, the system itself will reinstall the drivers you just uninstalled. Alternatively, you can also download and install the drivers from the manufacturer’s website directly.
To reinstall the network adapter driver, refer to these steps:
xperf -on latency -stackwalk profile -buffersize 1024 -MaxFile 256 -FileMode Circular && timeout -1 && xperf -d cpuusage.etl
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Followed by:
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