1. Firstly, make sure the network connection between the computer on which server programs are installed and the client doesn't fail (use port scanning tools such as nmap to detect whether port TCP 8000 and port UDP 8000 are opened on the client).
2. Secondly, make sure the IP address of client's network adapter doesn't conflict with the IP address used by another client. If DHCP is enabled on the network adapter of client, make sure a non-conflicting and available IP address has been assigned by the DHCP server to the client (ping the IP address or domain name of any gateway or server responding to ICMP packets).
3. Check if a service named "UniFrame" is running on the client, and if not, resume this service and set the "Startup type" to "Automatic". If you cannot start "UniFrame" service, please check whether the following services have been "Disabled" by the system or any third-party antivirus software: DNS client, Remote Procedure Call (RPC), DHCP client, and Terminal Services.
Check if any other administrator is trying to log in using the same account.
No, it depends. We have VESA kits as accessories for C75, C10, C91 and C92 currently. We offer stand for almost all client modes except C75 and C91.
No, Centerm thin client power adapters are different for x86 and ARM device. We have 12V/3A for most x86 clients such as C92 and C71; also have 19V/4.74A for D660 and N660. Meanwhile, we have 5V/3A power adaptor for ARM device, likes and C10. Therefore, contact with sales or technician to confirm the power adaptor for relevant client model is highly recommended in case of unexpected damage.
The general MTBF is 40000 Hrs.
Its functions for internal wireless card and also can be attached by mSATA storage, but their signal output are entirely different.
Serial port is used for connecting with other peripheral, such as fingerprint, serial printer and scanner in financial fields or other industries have multiple peripheral needed.

Yes, it can, but not for expanded mode since the signals are from the same source output.
Centerm offers Mini PCIE Wi-Fi model AR9462 (dual band) and 8188ee for all x86 device, and offer 8189etv internal USB Wi-Fi for ARM-based device.
Currently it only can disable/enable USB port, unable to lock down restricted device and allow authorized device.
Restrict access for invalid smart card users is available when users information is not matched with authenticated one.
Currently C75 can be bind with Multipoint 2012, Userful multiseat, Userful Videowall.
At present, we have 20 units of C75 connecting to one source, mainly deploy in a classroom for education fields.
C75 shares the video signals with host display card, all image shown C75 is different with other protocol, EG RDP, Receiver. C75 require a strict and high demand on network qualification. Wireless condition is not strong enough, and WAN is too easy to be interfered since its long distance and vary condition. Therefore, C75 only can play best performance in a LAN.
No, it isn’t, but here is a suggestion that user could attach the peripheral to a server, and share peripheral on sever for other C75 to access to.
Yes it can be added, even though DP port is optional.
The primary difference between ARM and X86 is the processor, ARM process follow a RISC (Reduced Instruction Set Computer) architecture while X86 processors are CISC (Complex Instruction set Architecture. This means that ARM ISA is relatively simple and most instructions execute in one clock cycle, while CISC instructions are mostly complex, taking up multiple CPU cycles to execute each instruction.
C71 supports PCOIP which already have TLS encryption involved.
C71 support display signal from a DVI-D and a DIV-I; if dual link DIV output is required, a dual single-link DVI to dual-link DVI cable should be needed.