We are often asked the question: how reliable are POS terminals and what can go wrong? As with any equipment, absolutely anything can fail in the terminals, it all depends on how carefully you handle the equipment and whether you follow the operating rules. In general, terminals are designed for long term operation, but inaccurate users significantly reduce this period.
For example, very often employees simply fill the terminals with various liquids - tea, coffee or juice, which leads to equipment failure. You can also add various falls and throws (yes, yes, this happens) of terminals, as a result of which not only mechanical damage occurs, but also problems associated with software. All of the above is not covered under warranty.
Now let's look at some of the most common errors that can be seen on the screen of Ingenico POS terminals:
The following errors occur as a result of the anti-hacking protection and are "cured" only in the Ingenico SC:
Among POS-terminals VeriFone can be found the following errors and faults:
That's all for now. I hope the information was useful to you. See you again. Success in your business!
An SSL protocol error (ERR_SSL_PROTOCOL_ERROR) occurs when a user is authorized on sites that use data encryption. For example, a user tries to log in to their Vkontakte, Mail.ru, or Google account, but instead receives an error 107, and the desired page does not open. There is nothing critical here, so we will analyze in more detail in the article what it means and how to eliminate it.
Error 107 indicates that the secure connection is being blocked. It’s rather difficult to say right away, since the SSL protocol error is not specified, but by following the recommendations for elimination, you will get rid of it.
Since there are no specifics in the ERR_SSL_PROTOCOL_ERROR notification, let's consider the most possible options problem solving.
Windows 10 may have been infiltrated by viruses or malware that disrupted the stable operation of the OS. I recommend using standalone scanners, such as the free Dr. Web CureIt or Kaspersky Rescue Disc. 
A date and time mismatch between the computer and the site server can result in error 107. The remote server has its own date and time settings, so the data is reconciled when you connect. In case of a mismatch, the server will consider the connection attempt to be insecure and block it. To check the date and time, go to BIOS settings, change to the current ones and restart the PC with the changes saved. 
Connection problems may occur due to the fact that OS updates have not been carried out for a long time. Complete the last windows updates and check your work. Especially it concerns previous versions(Windows XP, Vista, 7). 
Advice! Check the entrance to the site you need through another browser. IN Internet Explorer no such problem was observed.
The problem may occur due to blocking SSL connections antivirus packages. To fix it, disable checking of SSL and HTTPS protocols in the antivirus and try to enter the site. 
If you encounter the ERR_SSL_PROTOCOL_ERROR problem in Google services, a search engine, or in the browser itself, use the list of exceptions to personalize your security settings. Add the appropriate Internet application to the list of allowed hosts. 
Important! Clear the cache and cookies in the browser (ex. Google Chrome), which resulted in error 107.
If the problem is still not fixed, . Indicate when it arose and what operations you have already done so that we can help.
The ssl connection error is a problem that can occur in any of the non-Microsoft internet browsers. Interestingly, standard Internet Explorer quietly ignores this trouble, so you can temporarily switch to it. Naturally, until the moment when the situation that has arisen is completely eliminated.
Connection error ssl err ssl protocol error is a rather complex disease, since it is not always possible to identify its root causes. Therefore, for a complete cure, an integrated approach will be required.
The first step is to understand what the ssl connection error means. If we explain it in a simple way, then the appearance of this inscription is associated with a mismatch between some settings in the operating system and other installed applications.
A possible reason lies, oddly enough, in the installed or not installed antivirus program. In the first option, you will need to go to the program settings and see the list of blocked Internet resources - perhaps the desired address is located there. In the second option, the cause of an unpleasant situation can be a banal virus infection. Usually in this situation it is observed in Google chrome bug ssl connections.
How to fix:
A similar case during operation Opera browser- how to fix? A possible reason lies in the fact that the time and date just got lost on the computer.
Getting out of this situation is easy:
Many modern users use the Internet to purchase and use games. In certain cases, this will require the establishment of a profile on thematic resources where the necessary actions are performed. What to do - ssl connection error when trying to go to the Origin site or any other similar portal? Usually it helps to change some settings in the same antivirus program:
Sometimes figuring out how to fix "ssl connection error" will require some forced investment. Fortunately, not very big. The probable cause lies in the BIOS battery, which must be replaced if it fails. This method of solving the problem that has arisen will require a trip to the store and spending about 40-50 rubles. Not much, but effective.
The last option may occur when trying to enter the so-called adsence pages. By the way, in this case, the appearance of the inscription “ssl connection error” on the phone is also very likely. To fix it you need:
It's not a secret for anyone that very often when entering a certain resource or when authorizing on a site, the user receives a message stating that an SSL error has occurred (SSL_ERR_PROTOCOL_ERROR), and the requested page does not open. Why? This is what we will now find out, and at the same time we will consider possible reasons its occurrence and the simplest methods of elimination.
In general, each user must clearly understand that there is nothing critical in the appearance of such a failure. Just for some reason computer system cannot connect to the remote server through the SSL protocol, which is a secure connection.
As already understood, a message containing the string "ERR_SSL_PROTOCOL_ERROR: SSL protocol error" indicates that a secure (secure) connection is being blocked by something. What exactly, it’s quite difficult to say right away, but it can be argued with confidence that there are several main reasons for this. What are these reasons and how to bring the system to life, now it will be considered.
In addition, it is immediately worth noting that such problems mainly appear during login authentication, say, in social media like VKontakte, on mail servers like Mail.Ru, to search engines like Google, etc. Naturally, there is a way out of this situation.
Code 107 does not indicate a specific reason. Nevertheless, it is believed that one of the possible, moreover, the most common options may be damage HOSTS file due to exposure to viruses or malicious codes.
What to do in such a situation, I think, is already clear. It is advisable to check the system not with a regular scanner, but with some portable independent utility. Unfortunately, some viruses can "hang" in random access memory, so to be sure, you should use boot disks like Kaspersky Rescue Disc, which load their own interface before Windows even starts and run a full due diligence check.
This may seem strange to many, but the SSL error "ERR_SSL_PROTOCOL_ERROR" may be the result of incorrect due date and time. The fact is that the server has its own parameters, and when you connect to it via a secure connection, verification is performed. If a mismatch is found, the server identifies the connection attempt as insecure and blocks it.
In this case, you need to set the correct parameters, but you just need to do this not through the settings of the operating system, but through the BIOS, followed by a reboot of the computer terminal or laptop.
Sometimes the problem of SSL connection failures can be that the system does not have Latest updates.
True, for the most part this applies to Windows XP with the mandatory installation of Service Pack 3. Installing the appropriate update in many cases solves the problem.
Quite often there is a problem that consists in blocking an SSL connection by antivirus packages. In most cases, this is characteristic of the Eset Smart Security package, starting from the fifth version.
To fix the problem, it is recommended to disable HTTPS and SSL checking in the antivirus, and also use the exclusion list to add a browser application to it. In other antiviruses, this situation can also occur. In general, the output is the same.
The exclusion list is also useful when changing firewall settings. This mainly concerns the appearance of the ERR_SSL_PROTOCOL_ERROR error in Google services, itself search engine or even a browser.
As it is already clear, you need to go to the security settings and add the corresponding Internet application to the list of allowed nodes. It is also advisable to clear the cookies and cache in the Google Chrome browser, if it is used by default. You can also try setting your browser to automatic proxy settings, but this is not always necessary. In theory, the problem should disappear.
Now a few words about the preferences in terms of Internet browsers used. Not all of them are equal, and the problem, when all of a sudden the SSL error “ERR_SSL_PROTOCOL_ERROR” appears, can be associated with such software. True, the situation here is more with outdated software, so it is advisable to update the version of the default browser to the latest one.
However, according to some experts, ideally it is best to use the standard Internet Explorer, although many people do not like it. There is no such problem in the tenth version of Windows. There, the Edge browser, which replaced the standard Explorer, is more powerful. However, the standard Windows browser with the settings and parameters set by default, it does not create such a problem (unless it is only when changed by the user himself).
As you can see, the SSL error (ERR_SSL_PROTOCOL_ERROR), although it is quite common, is nevertheless eliminated in the simplest ways. In addition, it is in no way connected with the malfunctions of the “OS” itself. In general, it all comes down to either updating the system or the corresponding software, or disabling certain types of checks.
For some reason, some HTTPS sites stopped opening for me (not all!). When you try to open such a site in a browser, a window appears with the error "This site cannot provide a secure connection." Sites are not displayed in both Google Chrome and Opera and Yandex Browser. Without HTTPS, some sites open, but not all, only those whose pages are accessible both via the HTTPS protocol and the HTTP protocol. In Google Chrome, the error when opening an HTTPS site looks like this:
This site cannot provide a secure connection.
The sitename.ru site uses an unsupported protocol.
ERR_SSL_VERSION_OR_CIPHER_MISMATCH.
Client and server support different versions SSL protocol and cipher suite. Most likely, the server is using the RC4 cipher, which is considered insecure."
In Opera and Yandex Browser, the error looks about the same. How can I open such sites?
As you probably already figured out, the problem is related to problems with the SSL communication between your computers and the HTTPS site. The reasons for this error can be quite different. In this article, I tried to collect all the methods for fixing the error "This site cannot provide a secure connection" (This site can't provide a secure connection, ERR_SSL_PROTOCOL_ERROR) in various browsers.
I want to point out right away that despite the fact that Google browsers Chrome, Opera and Yandex Browser are produced by different companies, in fact, all these browsers are based on the same engine - Chrome, and the problem with errors in opening HTTPS sites is solved in them in the same way.
First of all, you need to make sure that the problem is not on the side of the HTTPS site itself. Try opening it from other devices (phone, tablet, home/work computer, etc.). Also check if it opens in other browsers like IE/Edge or Mozilla Firefox. In Firefox, a similar error was discussed in the article.
Browser cache and cookies can be a common cause of errors with SSL certificates. We recommend that you first clear the cache and cookies in your browser. In Chrome, you need to press a keyboard shortcut Ctrl + Shift + Delete, select a period of time ( All the time) and click the clear data button ( Delete data/cleardata).
To clear the SSL cache on Windows:
We recommend disabling (removing) third-party browser extensions, especially any anonymizers, proxies, VPNs, antivirus extensions, and other similar Addons that can interfere with traffic to the target site. You can view the list of enabled extensions in Chrome by going to Settings -> Additional tools -> Extensions, or by going to the page chrome://extensions/. Disable all suspicious extensions.
If your computer has an antivirus program or a firewall (often built into the antivirus), it is possible that access to the site is being blocked by them. To understand whether antiviruses or firewalls restrict access to the site, try temporarily suspending their work.
In many modern antiviruses, by default, there is a module for checking SST / TLS site certificates. If the antivirus detects that the site is using an insufficiently secure (or ) certificate, or outdated version SSL protocol (the same), the user's access to such a site may be limited. Try disabling scanning of HTTP/HTTPS traffic and SSL certificates. As you understand, it all depends on which antivirus you have installed. For example:
Incorrect date and time (and ) on the computer can also cause an error when establishing a secure connection to HTTPS sites. After all, when performing authentication, the system checks the creation date and expiration date of the certificate of the site and the higher certification authority.
If your computer is in an isolated segment, has not been updated for a long time, or the service is completely disabled on it automatic update, your computer may not have the new trusted root certificates (TrustedRootCA). We recommend that you update the system: install the latest security updates, in the case of Windows 7, be sure to install SP1 () and time zone updates ().
You can manually update the root certificates by following the article: (we also recommend that this will prevent your HTTPs traffic from being intercepted and a number of other problems).
Check if Chrome has protocol support enabled QUIC(Quick UDP Internet Connections). The QUIC protocol allows you to open a connection much faster and negotiate all TLS (HTTPs) parameters when connecting to a site. However, in some cases it can cause problems with SSL connections. Try disabling QUIC:
And the very last point - most likely, to solve the problem, it will be enough for you to enable support for older versions of the TLS and SSL protocols. In most cases, it will be the most effective, but I deliberately moved it to the end of the article. I'll explain why.
The old versions of the TLS and SSL protocols are disabled not at the mere whim of the developers, but due to the presence a large number vulnerabilities that allow attackers to intercept your data in HTTPS traffic and even modify it. Thoughtlessly turning on old protocols significantly reduces your security on the Internet, so this method should be resorted to as a last resort, if everything else has definitely not helped.
Modern browsers and operating systems have long since abandoned support for the legacy and vulnerable SSL/TLS protocols (SSL 2.0, SSL 3.0, and TLS 1.1). TLS 1.2 and TLS 1.3 are now considered standard
If the site uses a lower version of the SSL/TLS protocol than is supported by the client/browser, the user sees an error establishing a secure connection.
To enable older versions of the SSL/TLS protocols (I note again - this is insecure):
If all the above methods did not help to get rid of the error "This site cannot provide a secure connection" also try:
