Tag Archives: Ports

2012 Model Laptops and Notebooks that Feature a Serial Port (RS-232)

I was recently asked to source laptops with an integrated serial port which is becoming harder and harder in this day and age.

Thankfully a few vendors still fit the trusty RS-232 port to some models and I have outlined these models below.

2012 Models

HP ProBook 6570b Series

P/N: B6P78EA – http://www8.hp.com/uk/en/products/laptops/product-detail.html?oid=5270277

P/N: B6P79EA – http://www8.hp.com/uk/en/products/laptops/product-detail.html?oid=5270278

P/N: B6P81EA – http://www8.hp.com/uk/en/products/laptops/product-detail.html?oid=5270280

P/N: B6P78ET – http://www8.hp.com/uk/en/products/laptops/product-detail.html?oid=5281632

HP EliteBook 8570p Series

P/N: B6P98EA – http://www8.hp.com/uk/en/products/laptops/product-detail.html?oid=5270297

P/N: B6P99EA – http://www8.hp.com/uk/en/products/laptops/product-detail.html?oid=5270298

P/N: B6Q00EA – http://www8.hp.com/uk/en/products/laptops/product-detail.html?oid=5270299

P/N: B5V88AW – http://www8.hp.com/uk/en/products/laptops/product-detail.html?oid=5268988

Toshiba Tecra A11 Series

P/N: PTSE0E-0M9052EN (TECRA A11-1FR) – http://uk.computers.toshiba-europe.com/innovation/product/Tecra-A11-1FR/1118527/toshibaShop/false/

P/N: PTSE0E-0M6052EN (TECRA A11-1F4) – http://uk.computers.toshiba-europe.com/innovation/product/Tecra-A11-1F4/1117375/toshibaShop/false/

P/N: PTSE0E-0MJ052EN (TECRA A11-1HP) – http://uk.computers.toshiba-europe.com/innovation/product/Tecra-A11-1HP/1119159/toshibaShop/false/

P/N: PTSE0E-0MC052EN (TECRA A11-1FP) – http://uk.computers.toshiba-europe.com/innovation/product/Tecra-A11-1FP/1118524/toshibaShop/false/

I will try and update this Post as new models become available, please feel free to add your comments if you are aware of an other currently available laptop brands/models that feature a seial port.

Tcpip.sys – Pre Service Pack 2 Revision History for Windows Server 2008 R2 SP1, Windows 7 SP1 and Windows Small Business Server 2011 (SBS 2011)

Tcpip.sys – Pre Service Pack 2 Revision History for Windows Server 2008 R2 SP1, Windows 7 SP1 and Windows Small Business Server 2011 (SBS 2011)

05-Feb-2014 – 6.1.7601.22590 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2918550 – Computer leaks nonpaged pool memory when IPSEC traffic is configured to use AuthIP without encryption in Windows

05-Nov-2013 – 6.1.7601.22502 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2905412 – Stop error 0xD1 on a Windows-based computer with multiple processors

10-Oct-2013 – 6.1.7601.22477 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2896146 – Packet loss occurs when MTU is below 576 and PMTU discovery is enabled on your Windows 7 SP1 or Windows Server 2008 R2 SP1

09-Oct-2013 – 6.1.7601.22476 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2885980 – FIX: A memory leak condition occurs when the FwpsAllocateCloneNetBufferlist() API is called

08-Sep-2013 – 6.1.7601.18254 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2885980 – FIX: A memory leak condition occurs when the FwpsAllocateCloneNetBufferlist() API is called

06-Sep-2013 – 6.1.7601.22443 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2885978 – 0x0000007F Stop error on a Windows-based computer

04-Sep-2013 – 6.1.7601.22441 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2885976 – User application freezes on a Windows-based computer that uses the WFP

04-Sep-2013 – 6.1.7601.18251 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2885976 – User application freezes on a Windows-based computer that uses the WFP

13-Jul-2013 – 6.1.7601.22383 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2871565 – “C000021B” error when you inject an NBL that contains multiple net buffers in Windows 7 SP1 or Windows Server 2008 R2 SP1

13-Jul-2013 – 6.1.7601.18209 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2871565 – “C000021B” error when you inject an NBL that contains multiple net buffers in Windows 7 SP1 or Windows Server 2008 R2 SP1

06-Jul-2013 – 6.1.7601.22378 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2868623 – MS13-065: Vulnerability in ICMPv6 could allow denial of service: August 13, 2013

06-Jul-2013 – 6.1.7601.18203 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2868623 – MS13-065: Vulnerability in ICMPv6 could allow denial of service: August 13, 2013

11-Jan-2013 – 6.1.7601.22215 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2524732 – An IPsec connection to back-end databases from a WTT application times out in Windows 7 or in Windows Server 2008 R2

10-Jan-2013 – 6.1.7601.22214 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2459530 – Event ID 5719 and event ID 1129 may be logged when a non-Microsoft DHCP Relay Agent is used

10-Jan-2013 – 6.1.7601.18048 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2459530 – Event ID 5719 and event ID 1129 may be logged when a non-Microsoft DHCP Relay Agent is used

04-Jan-2013 – 6.1.7601.22209 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2790655 – MS13-018: Vulnerability in TCP/IP could allow denial of service: February 12, 2013

03-Jan-2013 – 6.1.7601.18042 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2790655 – MS13-018: Vulnerability in TCP/IP could allow denial of service: February 12, 2013

30-Nov-2012 – 6.1.7601.22177 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2789968 – “0x000000D1” Stop error after you install the WDK WFP “inspect” sample in Windows 7 or Windows Server 2008 R2

29-Nov-2012 – 6.1.7601.22176 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2789397 – Data corruption and network issues when you run a WFP-based application on a computer that is running Windows

29-Nov-2012 – 6.1.7601.22176 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2789378 – Memory leak when an application uses the FwpsNetBufferListAssociateContext0 function in Windows 7 or Windows Server 2008 R2

29-Nov-2012 – 6.1.7601.22176 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2788573 – “0x00000050” Stop error when you run a WFP-based application to register a callout routine in Windows 7 or Windows Server 2008 R2

29-Nov-2012 – 6.1.7601.22176 – Tcpip.sys – x64 – http://support.microsoft.com/kb/2787847 – “0x000000D1” Stop error when a storage array is attached to a network environment and running Windows Server 2008 R2

29-Nov-2012 – 6.1.7601.18014 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2789397 – Data corruption and network issues when you run a WFP-based application on a computer that is running Windows

29-Nov-2012 – 6.1.7601.18014 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2789378 – Memory leak when an application uses the FwpsNetBufferListAssociateContext0 function in Windows 7 or Windows Server 2008 R2

29-Nov-2012 – 6.1.7601.18014 – Tcpip.sys – x64 – http://support.microsoft.com/kb/2787847 – “0x000000D1” Stop error when a storage array is attached to a network environment and running Windows Server 2008 R2

28-Nov-2012 – 6.1.7601.22175 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2785146 – Data is corrupted when there is insufficient memory on a Windows-based computer

23-Nov-2012 – 6.1.7601.22172 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2741850 – TCP SACK option is always set to “true” after you enable the TCP/IP Offloading feature in Windows 7 or in Windows Server 2008 R2

18-Oct-2012 – 6.1.7601.22137 – Tcpip.sys – x86/x64 – https://support.microsoft.com/kb/2775511 – An enterprise hotfix rollup is available for Windows 7 SP1 and Windows Server 2008 R2 SP1

03-Oct-2012 – 6.1.7601.22124 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2750841 – An IPv6 readiness update is available for Windows 7 and for Windows Server 2008 R2

03-Oct-2012 – 6.1.7601.17964 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2750841 – An IPv6 readiness update is available for Windows 7 and for Windows Server 2008 R2

12-Sep-2012 – 6.1.7601.22112 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2754804 – FTP client does not establish a passive-mode FTP connection to an IPv4 FTP server in Windows 7 or in Windows Server 2008 R2

12-Sep-2012 – 6.1.7601.17954 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2754804 – FTP client does not establish a passive-mode FTP connection to an IPv4 FTP server in Windows 7 or in Windows Server 2008 R2

06-Sep-2012 – 6.1.7601.22108 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2738401 – Raw packet is discarded after a UDP broadcast packet is received on a computer that is running Windows 7 or Windows Server 2008 R2

20-Jul-2012 – 6.1.7601.22067 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2735855 – Network connection is slow when you run a WFP-based application on a computer that is running Windows 7 or Windows Server 2008 R2

20-Jul-2012 – 6.1.7601.17911 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2735855 – Network connection is slow when you run a WFP-based application on a computer that is running Windows 7 or Windows Server 2008 R2

14-Jul-2012 – 6.1.7601.22056 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2727330 – Default gateway is set to 0.0.0.0 if you start a Windows 7-based or Windows Server 2008 R2-based computer from an iSCSI boot device

14-Jul-2012 – 6.1.7601.17900 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2727330 – Default gateway is set to 0.0.0.0 if you start a Windows 7-based or Windows Server 2008 R2-based computer from an iSCSI boot device

09-Jul-2012 – 6.1.7601.22047 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2733445 – Incorrect time is displayed in a device that uses ICMP to synchronize time information with a Windows 7-based or Windows Server 2008 R2-based computer

09-Jun-2012 – 6.1.7601.22015 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2722392 – “0x000000F4” Stop error when you run the Device Fundamental tests in Windows 7 or in Windows Server 2008 R2

30-Mar-2012 – 6.1.7601.21954 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2688338 – MS12-032: Vulnerability in TCP/IP could allow elevation of privilege: May 8, 2012

30-Mar-2012 – 6.1.7601.17802 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2688338 – MS12-032: Vulnerability in TCP/IP could allow elevation of privilege: May 8, 2012

09-Mar-2012 – 6.1.7601.21939 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2665206 – Slow performance when you enable IPsec encryption on a specific TCP port number in Windows 7 or in Windows Server 2008 R2

11-Feb-2012 – 6.1.7601.21921 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2675785 – Data transfer speed is slow in Windows 7 or in Windows Server 2008 R2

01-Feb-2012 – 6.1.7601.21912 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2665809 – You cannot exclude ports by using the ReservedPorts registry key in Windows Server 2008 or in Windows Server 2008 R2

07-Jan-2012 – 6.1.7601.21893 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2553549 – All the TCP/IP ports that are in a TIME_WAIT status are not closed after 497 days from system startup in Windows Vista, in Windows 7, in Windows Server 2008 and in Windows Server 2008 R2

03-Jan-2012 – 6.1.7601.21889 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2661010 – IP packets are not routed through a Windows Server 2008 R2–based LAN router in a VLAN environment

21-Dec-2011 – 6.1.7601.21881 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2639793 – “0x000000C2” Stop error occurs when you use IPsec on a computer that is running Windows Server 2008, Windows Vista, Windows Server 2008 R2 or Windows 7 in a network that uses IPsec NAT-T security

02-Nov-2011 – 6.1.7601.21853 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2639824 – Multicast packets are dropped in Windows 7 or in Windows Server 2008 R2

06-Oct-2011 – 6.1.7601.21833 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2621067 – The first-returned IP address is incorrect when you use the getaddrinfo function on a multi-homed computer that is running Windows Vista, Windows Server 2008, Windows 7, or Windows Server 2008 R2

01-Oct-2011 – 6.1.7601.21830 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2582281 – Slow failover operation if no router exists between the cluster and an application server

29-Sep-2011 – 6.1.7601.21828 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2588516 – MS11-083: Vulnerability in TCP/IP could allow remote code execution: November 8, 2011

13-Aug-2011 – 6.1.7601.21789 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2582284 – New VPN connections establish a session that has a smaller MTU value than expected in Windows Server 2008 R2 or in Windows 7

13-Aug-2011 – 6.1.7601.21789 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2459530 – Event ID 5719 and event ID 1129 may be logged when a non-Microsoft DHCP Relay Agent is used

12-Jul-2011 – 6.1.7601.21768 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2570170 – Performance issue when you enable the AuthNoEncap policy to handle large payloads in a network environment in Windows 7 or in Windows Server 2008 R2

18-Jun-2011 – 6.1.7601.21751 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2569391 – IPv6 DAD state does not switch back to Preferred state from Deprecated state in Windows Vista, in Windows Server 2008, in Windows 7, or in Windows Server 2008 R2

25-May-2011 – 6.1.7601.21734 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2469100 – Manually added route table entries are deleted unexpectedly when you delete an additional IP address in Windows Vista, in Windows 7, in Windows Server 2008 or in Windows Server 2008 R2

10-May-2011 – 6.1.7601.21724 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2523881 – You cannot establish an IPsec tunnel to a computer that is running Windows 7 or Windows Server 2008 R2 through a NAT device

06-May-2011 – 6.1.7601.21722 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2547057 – IP packets are not routed through a Windows Server 2008 R2–based LAN router in a VLAN environment

22-Apr-2011 – 6.1.7601.21710 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2524732 – An IPsec connection to back-end databases from a WTT application times out in Windows 7 or in Windows Server 2008 R2

19-Mar-2011 – 6.1.7601.21687 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2511305 – Network throughput is not scaled up correctly if high-bandwidth PCI Express adapters and four or more processor sockets are used in Windows Server 2008 R2

19-Mar-2011 – 6.1.7601.21687 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2519736 – Stop error message in Windows Server 2008 R2 SP1 or in Windows 7 SP1: “STOP: 0x0000007F”

19-Mar-2011 – 6.1.7601.21687 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2525390 – The SACK option is always set to “true” even if network adapter does not support SACK for offloaded connections in Windows 7 or in Windows Server 2008 R2

17-Mar-2011 – 6.1.7601.21685 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2519644 – Stop code in the tcpip.sys driver on a computer that is running Windows Server 2008 R2: 0x000000D1

05-Mar-2011 – 6.1.7601.21675 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2470853 – IGMP v1 membership report packets are sent to incorrect destinations on a computer that is running Windows Server 2008, Windows Vista, Windows 7 or Windows Server 2008 R2

20-Jan-2011 – 6.1.7601.21645 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2472264 – You cannot customize some TCP configurations by using the netsh command in Windows Server 2008 R2

17-Jan-2011 – 6.1.7601.21643 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2477730 – The TCP Chimney Offload feature fails on all network adapters in Windows Server 2008 R2 or in Windows 7 if you disable or change the properties of a network adapter

15-Jan-2011 – 6.1.7601.21642 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2465772 – An application or service that uses Winsock API or Winsock Kernel API may randomly stop responding in Windows Server 2008 R2 or in Windows 7

18-Dec-2010 – 6.1.7601.21624 – Tcpip.sys – x86/x64 – http://support.microsoft.com/kb/2465408 – Applications or services cannot update their routing tables after they receive route change notifications in Windows Server 2008 R2 or in Windows 7

Microsoft Windows – Network Printer/s Unexpectedly Show Offline

When using Microsoft Windows (various editions and versions) you may find that your Network Printer Unexpectedly Shows Offline.  This can occur for a number of reasons and todays blog will try and help get you printing again.

First you should verify that you can ping the printer you are trying to print to, you can usually find the hostname or the IP address of the printer from the “Ports” tab of the printers “properties” page.

It should look something like this:

Printer Name or IP Address is where we can see which port the printer is trying to print to, we can then enter a “command prompt” by typing “cmd” into the “run” box and then type the ping command and the ip address or hostname of our printer.  Example is “ping 192.168.1.230” or “ping hpinkjetprinter”

If we do not get a response from the address or hostname then it could indicate that the printer has been assigned a different IP address (DHCP) by the server or your Router.  It could also indicate that the printer is turned off, the network cable is unplugged or damaged, if the printer is wireless it may be that the signal is no longer in range or that the wireless credentials it was setup with have been changed (WEP or WPA Key, SSID).  Many Servers or Routers support reservations so that you can ensure your printer always gets the same ip address, alternatively you can find the hostname of your printer and set the printer port to the hostname, if the ip address changes the computer should then still be able to resolve the hostname to the current and valid ip address of the device.

If your printer is responding to a ping command but you still cannot print then it may be an issue with the configuration of the printers “Standard TCP/IP Port” you will several options on the port configuration page that can effect your ability to submit a print job to the network printer, it may also cause the printer to incorrectly report that it is offline.

One particular issues that I have witnessed first hand is an HP OfficeJet Printer showing offline when the “SNMP Status Enabled” is ticked under the  “Standard TCP/IP Port” printer port configuration tab.  You may be able to ping the printer and access its web configuration but the printer will continue to show offline in Windows and print jobs will remian in the print queue.  Once the “SNMP Status Enabled” is unchecked the printer will appear online again and print correctly.

You amy also find that your printer only supports RAW or LPR mode, you can usually find further information on the “Protocol” that your printer supports via the technical manual or sometimes via the printers web configuration page.

Last but not least please remeber to check that you have the latest printer drivers from the manufacturers website, any firmware updates or software updates should also be installed to ensure the optimum performance and reliability of your product.  It is also important to remember that you should ensure the printer you are accessing is compatbile with your operating system and that driver support is either providd natively within Windows or the manufcaturer supply drivers via their website.