No Network Adapter Available; Integrated Adapters Report All Sent Packets With Bad Tcp Checksum - Network Instruments GigaStor User Manual

If a Single Probe does not have a user name defined in the Options > Probe Redirection Settings, you must
create a new account called "Anyone" (without quotes) and use that account to access the Single Probe.
The probe and Observer analyzer are within the same minor build range. You can have the Observer
analyzer automatically force an upgrade of an older probe version.
You can access the VLAN if the probe or Observer analyzer are on different VLANs. There is nothing you
need to configure in Observer or the probe to enable a connection when they are on different VLANs.
However, if you do not have network permissions to access a probe on a different VLAN, it is a network
configuration issue (usually for security reasons) and you should contact the network administrator.

No network adapter available

After starting Observer, if you do not see any available adapters listed in the "Select Network Adapter" list, it
means your NIC does not have the necessary driver or VMONI Protocol settings installed. Use this information to
enable your adapter and to install the proper drivers.
1. If Observer is running, close it.
2. Ensure you are logged in to the system with an account with administrator rights.
3. From the Windows Start menu, choose Control Panel > Network and Sharing Center.
4. Click Change Adapter Settings.
5. Right-click any of the Local Area Connections and choose Properties.
6. Look at the list of installed components to verify that the VMONI Protocol Analyzer is listed. Then do one of
the following:
If it is not installed, skip to
If the VMONI driver is listed, remove it. Select VMONI Protocol Analyzer and click the Uninstall
button. After the VMONI driver is removed, restart the system and continue with
7. From the Local Area Connection Properties
– VMONI Protocol Analyzer and click OK. If the VMONI driver is not listed, click Have Disk, then browse to the
VMONI.SYS file located in the Observer directory on your hard drive, select it, and click OK.
The VMONI Protocol Analyzer will now be available to install.
8. Restart the computer after you have completed installing the driver.
You should now be able to select an adapter when starting Observer.

Integrated adapters report all sent packets with bad TCP checksum

Symptoms: All TCP packets sent from the Observer analyzer or probe station across an integrated network
adapter contain bad TCP checksums.
Causes: Default driver settings for the card are incorrect. You must update the driver and then disable the
"Offload Transmit TCP Checksum" option.
Solutions: Upgrade the driver for the integrated network adapter to the Network Instruments/Intel Pro 1000
adapter driver. This driver is located in the:\<Observer installation directory>\Drivers
\IntelPro1000 directory.
1. After upgrading the driver, right-click the adapter and go to Control Panel > Network Connections >
Properties.
2. On the General tab, click the Configure button.
3. Click the Advanced tab and find the Offload Transmit TCP Checksum option and disable it.
4. Restart your system.
86 | GigaStor™ (pub. 25.Apr.2014)
step 7.
(step 5), choose Install > Protocol > Add > Network Instruments
step 7.