resetting the tcp stack in XP.

Avast Free Antivirus / Premium Security
1

I noticed at a certain website, www.vevo.com, I was unable to view any of the video’s in both Firefox and
Internet Explorer. However, other sites, eg. youtube, forums, etc,etc. worked fine.

After trying a number of things, I followed the instructions at
http://support.microsoft.com/kb/299357
and reset the TCP stack.

(avast was installed at the time, although I had uninstalled and reinstalled avast! to see if it affected the problem -
id didn’t)

Does avast! do anything at the relevant keys?
SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\
SYSTEM\CurrentControlSet\Services\DHCP\Parameters\

If so, what effect does “resetting the tcp stack” have on avast?
I wasn’t sure if it was a factor or not, so I did a repair install

After doing the Tcp reset, VEVO started working again, on both browsers.

2

Resetting those will have no affect on Avast

3

Thanks for the info. I wonder how my system came to be in this state where some web sites worked
but apparently, some did not. I see the results in the text file it creates, but I’m not familiar enough with
the contents to infer anything useful. Could some malware have changed it? Here’s the contents:

reset SYSTEM\CurrentControlSet\Services\Dhcp\Parameters\Options\15\RegLocation
old REG_MULTI_SZ =
SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces?\DhcpDomain
SYSTEM\CurrentControlSet\Services\TcpIp\Parameters\DhcpDomain

added SYSTEM\CurrentControlSet\Services\Netbt\Parameters\Interfaces\Tcpip_{7F3338F8-634B-476A-8809-B1FD486370B4}\NetbiosOptions
added SYSTEM\CurrentControlSet\Services\Netbt\Parameters\Interfaces\Tcpip_{FA84C080-72C1-455B-81EB-690D364D7F04}\NetbiosOptions
deleted SYSTEM\CurrentControlSet\Services\Netbt\Parameters\EnableLmhosts
added SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces{14ECD2C4-36AA-411F-9E95-4098C2369C0F}\DisableDynamicUpdate
deleted SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces{14ECD2C4-36AA-411F-9E95-4098C2369C0F}\IpAutoconfigurationAddress
deleted SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces{14ECD2C4-36AA-411F-9E95-4098C2369C0F}\IpAutoconfigurationMask
deleted SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces{14ECD2C4-36AA-411F-9E95-4098C2369C0F}\IpAutoconfigurationSeed
reset SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces{14ECD2C4-36AA-411F-9E95-4098C2369C0F}\NameServer
old REG_SZ = 208.67.222.222,208.67.220.220

reset SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces{14ECD2C4-36AA-411F-9E95-4098C2369C0F}\RawIpAllowedProtocols
old REG_MULTI_SZ =
0

reset SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces{14ECD2C4-36AA-411F-9E95-4098C2369C0F}\TcpAllowedPorts
old REG_MULTI_SZ =
0

reset SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces{14ECD2C4-36AA-411F-9E95-4098C2369C0F}\UdpAllowedPorts
old REG_MULTI_SZ =
0

added SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces{200760C7-3B09-43DA-9FCA-02A503B6084D}\AddressType
added SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces{200760C7-3B09-43DA-9FCA-02A503B6084D}\DisableDynamicUpdate
reset SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces{200760C7-3B09-43DA-9FCA-02A503B6084D}\RawIpAllowedProtocols
old REG_MULTI_SZ =
0

reset SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces{200760C7-3B09-43DA-9FCA-02A503B6084D}\TcpAllowedPorts
old REG_MULTI_SZ =
0

reset SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces{200760C7-3B09-43DA-9FCA-02A503B6084D}\UdpAllowedPorts
old REG_MULTI_SZ =
0

added SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces{E6820C68-F344-4955-9E75-D0ADCE9B4666}\AddressType
added SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces{E6820C68-F344-4955-9E75-D0ADCE9B4666}\DisableDynamicUpdate
reset SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces{E6820C68-F344-4955-9E75-D0ADCE9B4666}\RawIpAllowedProtocols
old REG_MULTI_SZ =
0

reset SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces{E6820C68-F344-4955-9E75-D0ADCE9B4666}\TcpAllowedPorts
old REG_MULTI_SZ =
0

reset SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces{E6820C68-F344-4955-9E75-D0ADCE9B4666}\UdpAllowedPorts
old REG_MULTI_SZ =
0

deleted SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\DontAddDefaultGatewayDefault
deleted SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\EnableIcmpRedirect
deleted SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\EnableSecurityFilters
deleted SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\SearchList
deleted SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\TcpWindowSize
deleted SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\UseDomainNameDevolution

4

There was probably some adware on your system that messed with the winsock settings