May 21, 2011
We have one 6530b HP laptop machine with us, which has gone through half dozen formats, mainly due to issues with network adaptor. The last format was performed 2 weeks back and realized one important factor. If windows finds a proper driver for your network adaptor, NEVER NEVER try to upgrade the driver using OEM or chip manufacturer drivers!
We were doing the same mistake always as the driver configured by Microsoft dates back to year 2009 beginning. Once the driver set by Microsoft untouched, the network related issues are almost non-existing right now.
Hope this information is useful for those who have few years old hardware and a new age OS like Windows 7!
February 12, 2011
If you are on Windows 7 and experiencing degraded performance with HOST network (browsing other computers in the physical network has become dramatically slow, transfering files from or to other computers have become painfully slow and the transfer rate is just KBs while your connection is 100/1000MBPS) then be assured, the virtual adaptors installed by these virtual boxes are playing off.
Detailed explanation from VMWare KB article could be found here (This KB article is pretty old, however the issues handled are same till date, so don’t get confused)
To get over with this issue, you may go ahead and disable the virtual network adaptors installed by VMWare or Oracle/Java VirtualBox application(s).
Edit the virtual appliance network property and selected “Bridged” and optionally “Replicate physical network state” (check image)
Workaround status: Fully checked and confirmed.
March 3, 2010
Scenario: Windows 2008 R1 AD Domain, ISA 2006 SP1, Client Windows 7 Professional 64bit with ISA firewall client installed!
Annoyance factor: Though the client could access the internet, the local area connection/wireless connection to domain network shows “No Internet Access” or when connection shows “Internet Access” the balloon message says “Additional log on information may be required”
Day count wasted to find a solution: 8th day in a row
Activity log as following.
- Googling to find a solution, came against a vista forum post where somebody has mentioned about adding “local service” account under “Administrators” local group.
- Added “local service” and “network service” under local administrators group.
- Restarted “Network Location Awareness” which in due restarts “Network List Services” automatically.
- Noticed the following: Instead of the much hated yellow triangle, the connection (cabled) shown “Additional log on information may be required”
- Flipped the coin, uninstalled the ISA 2006 firewall client.
- Though not prompted, opted for a restart.
- The connection apparently stopped showing both the annoying messages “No Internet Access” and “Additional log on information may be required”
- Re-installed ISA 2006 Firewall client, restarted the “Network Location Awareness” service which restarted the “Network List Services”. Everything look still good
- Moved to nearest Windows 7 client running 32bit Windows 7 Professional. Gone through the above said procedures. Confirmed everything worked fine.
- Moved back to my client machine, removed both “Local Service” and “Network Service” accounts from local administrators group.
- Forced a restart.
- Everything looked fine, no more false messages stating “No Internet Access” or “Additional log on information may be required”!
Though the connection status doesn’t piss me off with the messages, the following were observed.
Avast anti-virus client as well Symantec endpoint client were unable to download virus definitions from download servers until manually configured with proxy settings.
Monitoring the ISA Server 2006 pointed towards the download requests being forwarded to ISA without user credentials and ISA was denying access to those requests.
Now wondering how more days I should spend to find a solution for this problem :(