NetMAXFAQ : NetMAX VPN Server Suite (Virtual Private Networking) :
Why is my VPN Server performance slow?
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Anything that would normally hinder the performance of a Server will apply to VPN servers as well, such as:
- Outdated hardware
- Improperly configured network settings
- Low bandwidth (oversaturated switches/routers, slow internet connection, etc...)
- System bottlenecks (Slow harddrive, High Resolution X Sessions, etc..)
If the items mentioned above are not a concern, review the configuration of the NetMAX server and client software to ensure that all is proper.
VPN communication relies on software based encryption, meaning that all packets travelling across a secure tunnel are first encrypted, then transmitted. By nature, this slows down communication. For most users, the benefit of security more than compensates for the performance hit.
To ensure that the server is able to encrypt data quickly, eliminate any unecessary applications running on the server and client machines, especially those that use encryption.
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Is it possible to block access to certain IP addresses and/or protocols over the VPN connection?