computers networking is not working

Sorry to bother, but it's beyond my experience.

After replacing a failing hard drive. The computers networking is not working. It can see my internet connection, but will not connect past the router. "Not connected. No internet connections are available". So I removed Avast totally. I reset the adapter. Probed with various utilities, which say, can't start DHCP, but see's my router, pulls an IP address. It figured out the I'm on tampabay.rr.com, etc. So, I ran sfc /scannow and got the usual error about can't complete and see log file. Log file says (among other things),

014-07-18 23:12:36, Info CBS Scavenge: Starts
2014-07-18 23:12:36, Info CSI 00000320@2014/7/19:03:12:36.147 CSI Transaction @0x1a63460 initialized for deployment engine {d16d444c-56d8-11d5-882d-0080c847b195} with flags 00000002 and client id [10]"TI6.0_0:0/"

2014-07-18 23:12:36, Info CBS Scavenge: Begin CSI Store
2014-07-18 23:12:36, Info CSI 00000321 Performing 1 operations; 1 are not lock/unlock and follow:
Scavenge (8): flags: 00000017
2014-07-18 23:12:37, Info CSI 00000322 Creating NT transaction (seq 3), objectname [6]"(null)"
2014-07-18 23:12:37, Info CSI 00000323 Created NT transaction (seq 3) result 0x00000000, handle @0xa0
2014-07-18 23:12:37, Info CSI 00000324@2014/7/19:03:12:37.795 CSI perf trace:
CSIPERF:TXCOMMIT;4
2014-07-18 23:12:40, Info CSI 00000325 Couldn't mark for pending delete: [ml:78{39},l:76{38}]"\SystemRoot\WinSxS\Temp\PendingDeletes"\[l:88{44}]"$$DeleteMe.sortkey.nlp.01cf27ce25a26540.000b". Reason: [13]"Cannot Delete"
2014-07-18 23:12:40, Info CSI 00000326 Couldn't mark for pending delete: [ml:78{39},l:76{38}]"\SystemRoot\WinSxS\Temp\PendingDeletes"\[l:90{45}]"$$DeleteMe.sorttbls.nlp.01cf27ce255d5d58.000a". Reason: [13]"Cannot Delete"
2014-07-18 23:12:40, Info CSI 00000327 ICSITransaction::Commit calling IStorePendingTransaction::Apply - coldpatching=FALSE applyflags=7
2014-07-18 23:12:40, Info CSI 00000328 Creating NT transaction (seq 4), objectname [6]"(null)"
2014-07-18 23:12:40, Info CSI 00000329 Created NT transaction (seq 4) result 0x00000000, handle @0xa0
2014-07-18 23:12:40, Info CSI 0000032a@2014/7/19:03:12:40.463 CSI perf trace:
CSIPERF:TXCOMMIT;9949
2014-07-18 23:12:40, Info CBS Scavenge: Completed, disposition: 0X1
2014-07-18 23:12:40, Info CSI 0000032b@2014/7/19:03:12:40.464 CSI Transaction @0x1a63460 destroyed

I've tried to isolate the error. I don't know what to do to fix it though. The complete log file attached.

Thanks for any help.:)

Both command prompt commands respond with, "RPC Server is not available". Well that gives me a direction, to look in.

You say "The computers networking is not working. It can see my internet connection, but will not connect past the router. "Not connected. No internet connections are available"." But what do you mean when you say you can see your internet connection but it won't connect past the router? It is unusual wording for Windows as it would usually say "Not connected. No network connections available." as against "No internet connections available.".

Do you mean your computer won't see other computers on the network and you can only communicate with the internet? Or do you mean it doesn't work at all and your router shows that you have an internet connection?

As for DHCP not being able to start, it could be that it is disabled or set to manual start in the services, click the Windows Orb and type "services.msc" into the search bar (without quotes), sort by name A>Z and find DHCP Client. Make sure it is set to Automatic start and it is running.

If DHCP is set correctly and your computer still won't get an IP address etc then there could be a problem with your router, it could have DHCP turned off for example.

As a last resort you could just assign it a fixed IP address, to do this go to Control Panel, under where it says "Network and Internet" click "View network status and tasks", in the column down the left hand side click "Change adapter settings", right click whichever adapter you are trying to use to connect to your router and click Properties, you will likely get a User Account Control popup asking if you want to let the program change settings, click Yes to this. Once you have clicked yes to the UAC popup another little window will open, in here is a list of things that the network adapter can use, we are interested in "Internet Protocol Version 4 (TCP/IPv4)", left click that once then left click the "Properties" button. Another window will open and the settings inside will most likely be set to "Obtain an IP Address Automatically" and "Obtain DNS server address automatically", you can change these to "Use the following ...".

Now for the tricky part: assuming your router is set up like most other routers, set the "IP Address" to 192.168.1.100, the "Subnet Mask" to 255.255.255.0 and the "Default Gateway" to 192.168.1.1. There are two things we can do for the DNS servers, we can assume your router is going to use the ones provided by your ISP, or we can just set them to public servers like Google. For simplicity we'll just use your router so type 192.168.1.1 into the "Preferred DNS Server".

Click OK and then click close, with any luck you will now have an IP Address in which you can access the internet and the rest of your network, and if you couldn't access the config page of your router before then you should be able to now.

Hope this is of some help to you, let me know if you don't understand my instructions as I'm not always the best at explaining things simply

EDIT: Hadn't seen other posts, RPC Server could be the Remote Procedure Call, which again like DHCP is a service that can be disabled, follow my above instructions and look for "RpcSs" under the Name column, or look for "Remote Procedure Call (RPC)" under Description.

I'm sorry for not being clear enough. I was too focused on the sfc.

That computer, will not see the internet. The router acknowledges its existence, but not by giving it an ip address! In the DHCP list, it shows it as FE80::B544:7DF4:8EDA:3C84, and all of the others with a 192.168.0.etc.

I have just reset the modem/router and switch. But no good.

DHCP client service. As Sergeant Steve suggested. It was set to automatic, BUT not started. So I selected start service, but IT REFUSED. It says, "Windows could not start the DHCP client service on Local Computer. Error 5: Access is Denied".

Also, RPC says Automatic and Started.

The FE80... it likely the "Link-Local IPv6 address" which unfortunately doesn't give you internet access (as you have found), unusual for a Router to show such an IP address, normally they just show the IPv4 address (192.168.0.x).

Going to copy what another member (Jacee) posted in a similar thread from 2011:

Backup the Registry: Back up the registry - Windows Help

To use Registry editor to resolve this problem, follow these steps:

1. Click Start, type regedit in the Search box, and then click Regedit.

2. Locate and then right-click the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Dhcp

3. R/Click and select Permissions, click Add, type network service, and then click OK .

4. Click to select the Full Control check box in the Allow column of the Permissions for NETWORK SERVICE box, and then click OK (Repeat for all subkeys).

5. Locate and then right-click the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip

6. R/Click and select Permissions, click Add, type network service, and then click OK.

7. Click to select the Full Control check box in the Allow column of the Permissions for NETWORK SERVICE box, and then click OK (Repeat for all subkeys)

Obviously if you already have NETWORK SERVICE in the list of permissions, just set them according to the above.

In my computer NETWORK SERVICE has Read permissions on the Dhcp folder, and Read and Special Permissions on the Tcpip folder. The Special Permissions are as follows: Query Value, Create Subkey, Enumerate Subkeys, Notify and Read Control. The "Repeat for all subkeys" I feel is redundant because it all subkeys should inherit from the parent (which is certainly the case in my PC), so if you look at the permissions of a subkey and find the checked boxes are a) the same as what was checked on the parent folder (Dhcp or Tcpip) and are also greyed out then there's nothing you need to do to the rest of them.

This MAY or MAY NOT work, it was NOT the solution for that thread starter, his solution was to disable DHCP on the Router and assign a manual IP etc (not really advisable if you have multiple computers or are not greatly tech savvy).

Didn't work. I'm still getting, not connected no connections are available.

So, I set it manually. 192.168.0.21. Well in the routers DHCP table it shows 192.168.0.21 and the hexadecimal one! Well it's nice to know I am also connected with IP6, but I would really like some internet! Also note that the diagnostic for internet won't work either and when trying to start DHCP Client, it still says Permission Denied.

Also, remember this started, because the hard drive was going bad. So I imaged it over to a new one. Then I found the problem, and the SFC still can't fix that problem.