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Hillstone E-Series vs OpenVPN Access Server comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 15, 2026

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Hillstone E-Series
Ranking in Enterprise Infrastructure VPN
24th
Average Rating
9.2
Reviews Sentiment
7.7
Number of Reviews
10
Ranking in other categories
Firewalls (39th), SSL VPN (9th)
OpenVPN Access Server
Ranking in Enterprise Infrastructure VPN
1st
Average Rating
8.4
Reviews Sentiment
6.6
Number of Reviews
57
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of April 2026, in the Enterprise Infrastructure VPN category, the mindshare of Hillstone E-Series is 1.5%, up from 0.4% compared to the previous year. The mindshare of OpenVPN Access Server is 13.3%, down from 14.3% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Enterprise Infrastructure VPN Mindshare Distribution
ProductMindshare (%)
OpenVPN Access Server13.3%
Hillstone E-Series1.5%
Other85.2%
Enterprise Infrastructure VPN
 

Featured Reviews

TahirMahmood - PeerSpot reviewer
IT Manager at Zubair Feeds
Offers good features like URL filtering, IPS, and IDS to users
We received an update for the tool in July. The update was provided for the tool as there was a problem with the firewall, where too much memory was consumed, and the firewall was hanging a lot. When we updated the tool's features, everything became okay. The tool only had some memory-related problems. It took the tool a month to fix the issues.
Fedir Plotnikov - PeerSpot reviewer
Senior Cloud Infrastructure Engineer at Globant
User management has simplified internal VPN access and now provides clear visibility and control
I do not use any role defining features because it is a really small organization, so it wasn't required, but it is there if needed. I have seen OpenVPN Access Server integrations such as LDAP, RADIUS, PAM, and SAML, but again, due to the size of the company, it wasn't necessary and we didn't have it inside the company. However, it was nice that it is already embedded inside. We haven't used much in terms of integrations with OpenVPN Access Server, so it's hard to say. We only used basic features there. My advice for others looking to implement OpenVPN Access Server is that it is at least worth trying if you need a fast and easy implementation solution without technical overhead and you just need VPN access, which is supported by all operating systems and mobile operating system vendors. It is definitely worth a try. OpenVPN Access Server was purchased directly from the website, not on the AWS marketplace or through a partner purchase. I would rate this product an overall eight out of ten.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"The installation is easy, we have not had any complaints from our customers."
"This solution has two main features that we find very valuable; a threat-intelligence option, and a web/application filtering option. The technical support team are very good and very quick."
"With Hillstone, TCO and ROI are very good, it's an easy sale."
"Very reliable solution with good scalability and straightforward implementation."
"Five out of five ROI."
"The most valuable feature of the Hillstone E-Series is its user-friendliness."
"The most valuable features of the Hillstone E-Series are its hardware capacity, innovation, and the throughput that the hardware can take."
"Working with the Hillstone E-Series has, from a remote perspective, allowed me to give my clients secure connectivity from a remote location to their offices or their servers."
"A valuable feature for us is its ability to see the new Citrix server as a local server within the company. And it allows us to test abroad."
"OpenVPN Access Server provides remote secure access."
"We use the solution to access remote services."
"The product’s adaptability is valuable."
"The features I have found to be most valuable are the levels of encryption I can enact and the compression I can apply to improve throughput."
"OpenVPN Access Server allows us to establish a secure connection to an IP address that would otherwise be inaccessible without using a VPN."
"OpenVPN Access Server is very stable."
"The most valuable features of the OpenVPN Access Server are the ease of use and integration with different platforms, such as Android and Windows. I can use the solution on my desktop and mobile devices. Additionally, the solution is secure."
 

Cons

"The solution doesn't have a web proxy built into the system like Sophos. This is something they should work to change."
"Having frequent live webinars on a monthly basis would really help."
"The tool provides just a general report. It does not provide a granular report. Hence, the tool should work on its reporting feature."
"Support from Hillstone E-Series has a shortcoming that needs improvement."
"The tool only had some memory-related problems."
"The current usage reporting is very basic. I would like to be able to access more granular data."
"The current usage reporting is very basic."
"The tool needs to improve its price."
"They should make the solution more secure by adding some firewall functionalities."
"The solution can be more compatible with different operating systems."
"I would like to see a simpler interface, so that we can make the connection between the local network using the LAN IP."
"I would like to see a GUI or Web UI to manage users. Today these features are in the Pro Edition or are done by scripts."
"It requires some experience of Linux server configuration to set it up."
"I find that connection speed with OpenVPN Access Server loses in comparison to WireGuard, which is very fast."
"There was one annoying feature where we had to disable and enable the user."
"You do need expertise in implementation if you do the initial setup yourself. As it is open-source, if you run into issues, there is nobody available to help you."
 

Pricing and Cost Advice

"The tool's pricing is reasonable. It depends on the model. The product's pricing is around 600 USD. You need to buy a software license to activate the features. You need to pay around 150 USD for that."
"Hillstone's pricing is economical and neither very high nor very low."
"The licensing model is very complex with many subcategories of licenses you can purchase. They could make it more simplified for customers to understand."
"The cost per year for licensing, and hardware, is approximately $850 for the basic plan."
"It is an open-source solution, so we don't pay for anything."
"With regard to setup cost, pricing and/or licensing, the simple answer is that you'll need to set aside some time to learn it and experiment with it."
"The price point is fantastic since it is free."
"OpenVPN is a free and open-source solution."
"OpenVPN Access Server was free for students. I don't know if you have to pay for an advanced version."
"One of the valuable features of OpenVPN is that it is free for a single user."
"At one point I had to purchase addition connection licenses. I was very pleased with the pricing and licensing; so much easier than navigating the confusing jungle of Microsoft and Cisco licensing and pricing. That alone made the product a delight to manage."
"The Pro Edition has a reasonable price per user."
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Top Industries

By visitors reading reviews
Comms Service Provider
14%
Construction Company
12%
Financial Services Firm
11%
Manufacturing Company
8%
Computer Software Company
12%
Comms Service Provider
11%
Financial Services Firm
7%
University
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise1
By reviewers
Company SizeCount
Small Business36
Midsize Enterprise8
Large Enterprise16
 

Questions from the Community

What needs improvement with Hillstone E-Series?
We received an update for the tool in July. The update was provided for the tool as there was a problem with the firewall, where too much memory was consumed, and the firewall was hanging a lot. Wh...
What is your primary use case for Hillstone E-Series?
I use the solution in my company for site-to-site VPN, SSL VPNs, URL filtering, IPS, IDS and all the other features which are available in the firewall.
What advice do you have for others considering Hillstone E-Series?
Our company did not use the tool's micro-segmentation features. There were no issues while integrating the tool. I have not used any AI in the tool. I recommend the tool to others. I rate the tool ...
How does Fortinet FortiClient compare with Open VPN Access Server?
Fortinet FortiClient is a feature-rich solution that is easy to use and deploy without sacrificing safety and security. It has a very fast connection rate and has a built-in VPN. With this solution...
What do you like most about OpenVPN Access Server?
OpenVPN Access Server is a simple and easy-to-use solution that I can use myself without anybody's help.
What is your experience regarding pricing and costs for OpenVPN Access Server?
I find it not cost-effective. It is not worth the money from a pricing perspective. However, it is a good investment for security and company information security. It is a good investment overall.
 

Also Known As

No data available
OpenVPN
 

Overview

 

Sample Customers

Bank of China Macao, Instituto Tecnológico Bolivariano, Ministry of Labor in San Salvador, FEDCO
Verizon, Amazon, Disney, HP, Microsoft, IBM, Samsung
Find out what your peers are saying about Hillstone E-Series vs. OpenVPN Access Server and other solutions. Updated: March 2026.
885,837 professionals have used our research since 2012.