Can't start Peer Name Resolution Protocol

[EvilBellyLint]

OS: Windows 7 Ultimate 64

The posted solution works for many, but there are still an equal number of users for whom the solution has not worked, and who have requested additional support.

Anyone who has come across an alternate solution, please post for those of us still doing everything to troubleshoot this issue. Thanks in advance.

 

[NTxLS]

I have the same problem. "idstore.sst" was deleted from the PeerNetworking folder, but was not recreated upon restarting. Same error code when attempting to start PNRP. Would it be possible for someone with a functioning idstore file to upload it for download? I don't know how else to recreate the file, or if that will even fix the problem.

I too am having this same problem and have done the same as "al3x3691" with the same results, still not working. I am attempting to use my laptop and my desktop to establish my connection and my laptop Win7 64bit tells me it cannot remove it from the homegroup. My desktop has been removed from the homegroup, using Win7 Ultimate SP1 32bit.

ANY help would be of GREAT assistance to many of us Newbies, Unknowings, Dummies, et ceteras . . .

TIA, CU L8R,
NTxLS

 

[danko15]

for those that can't see the file

This fix worked for me as all the others that deleted the file.

At first i couldn't find the folder, so I did a search for the filename and it showed up, even though i couldn't browse to the folder. Then, I right clicked on the search result and deleted the file.

The reason you can't see the file is because it is a system file, which is hidden by default. To unhide system files, go to Start -> Control Panel -> Folder Options. Under the View tab, there is a yellow folder under advanced settings with two options. Choose "show hidden files, folders, and drives. Hope this helps!

 

[NTxLS]

"danko15"

Use the feature from 'Control Panel/Folder Options/[Tab] View select 'Advanced Settings, Hidden files and folders that, like you mentioned, are hidden by default and change to Show hidden files, folders and drives.' After making any other changes click the OK radio button.

I did find the folder and that file removed said file, yet it still will not work for me. Still awating more info from someone that knows much more than I. I am very glad that it worked for you and hope you have many more successes.

 

[Nero]

wow that was great work and great advice!!!


worked for me!

I actually had 2 problem, this one and a corrupted log file to where I couldn't view windows logs so i deleted the files under:
C:\Windows\System32\LogFiles\WMI\RtBackup

somehow those got screwed up as well.

Thanks

 

[Snuggel]

In my localservices folder is no Appdata folder, any idea where i can find the Idstore.sst then?

I have the same problem: no such folder is found in my localservices folder...
Been looking for hours and not finding a solution..

 

[Thorke]

Maybe the next method will work (also for removing the computer from a Homegroup):
1. Delete all files in directory C:\ProgramData\Microsoft\Crypto\RSA\MachineKeys. You also can rename this directory (p.e. in 'MachineKeys.old') and create a new directory 'MachineKeys'. To delete the files in the directory you need certain administrator rights. Eventually you can download from internet a (register)file to get the needed rights for deleting a file. Search in Google ‘Take Ownership windows 7 download’. I suppose you have to activate the 'Take Ownership' routine for each file you want to delete. If you have the needed rights, delete the files in the directory 'MachineKeys'.
2. Restart your computer.
3. Start the Troubleshooter Homegroup (Configurationscreen -> Homegroup). (I don't know what's the real name of the program and it's location in english). Choose within the troubleshooter also the network control option, if you are asked so.
4. Start services.exe. For instance by pressing the Start-button on the left lower corner in the taskbar. Typ ‘services’ in the searchwindow ‘Programs and files search’ and press [ENTER].
5. Choose op ‘Services (lokaal)’.
6. Start in the following order the services:
- Peer Networking Identity Manager
- Peer Name Resolution Protocol
- Peer Networking Grouping
You can start the services by clicking the right mousebutton, while standing on the service, and choose for 'Start'. (When the service isn't started already).
Next follow some extra steps to delete the homegroup, if you want so.
7. Try to delete the homegroup from the computer. If that doesnt work yet, run once again the Trouble Shooter Homegroep (inc. network control). Perhaps you can remove the computer bu then from the homegroup. At least as you want to do so.
​

 

[NegativeEnergy]

Deleting the "C:\Windows\ServiceProfiles\LocalService\AppData\Roaming\PeerNetworking\idstore.sst" file solved it for me too. Thanks for the quick solution. Some "experts" advised re-installing windows 7... yeah right.

 

[commando]

thanks post no1 work for me and save d me with lots and lots of headache

 

[dasche]

How to Reset Windows Registry Permissions | Tech XE

above link is my self made guide to achieve the following

Maybe the next method will work (also for removing the computer from a Homegroup):
1. Delete all files in directory C:\ProgramData\Microsoft\Crypto\RSA\MachineKeys. You also can rename this directory (p.e. in 'MachineKeys.old') and create a new directory 'MachineKeys'. To delete the files in the directory you need certain administrator rights. Eventually you can download from internet a (register)file to get the needed rights for deleting a file. Search in Google ‘Take Ownership windows 7 download’. I suppose you have to activate the 'Take Ownership' routine for each file you want to delete. If you have the needed rights, delete the files in the directory 'MachineKeys'.
​

 

[nomanrahid]

WORKED.

1.unshare everything you have shared.

2.delete "idstore.sst" and "idstore.sst.new"

3.rename "a5691ef79c937250b91a4fde7c86f5db.sst.new" TO "a5691ef79c937250b91a4fde7c86f5db.sst.new.L"

4.disable you network card.

5. restart your PC.

6. try leaving homegroup NOW.

7. DONE........

 

[Eugenecist]

error: 0x806320a1

Solution Addition:
IF you are like me and tried manually starting the services as a different account etc, i.e. you probably changed the default settings for the account user info, that was a mistake, you will get this error: 0x806320a1

There is not a lot of information out there for this specifically, but the solution is really simple.

1) Delete idstore.sst

2) You want to go back to each service and change the Log On As options and log on user to "Local Service" (no quotes) and then edit the password so its blank. You will want to do this on ALL 3 services (don't forget to apply before closing). Then you should start them in the order 1,2,3 above. At his point you should be good to go, to run the HomeGroup self-diagnostics and then choose Refresh HomeGroup.

 

[Mitsumoi85]

The last one worked for me

I know this is an older forum posting but it worked out well for me. I tried all the fixes suggested here except the deleting or renaming MachineKeys file as I was unsure what that would do and no information was given.

The post preceding mine worked perfectly, I was now able to start all the services and leave the homegroup, for which I don''t have much use for right now.

Thank you all

 

[pl71]

Yes! For all which can not start Peer Name Resolution Protocol - see Eugenecist advice. Check carefully Log On tab. Make sure all 3 services (Peer ...) are set to Local Service. Enter your Log on Windows password and... voilà! You can start services.
(Btw, there is an advice here that these services should run in Local System Account, not as Local Service. I do not know the difference, in case of future problems will investigate more.)
Restart computer. Home group is here and errors in the event log gone away.
But why this happened, as Home Group worked yesterday I do not know also.

 

[mrtraver]

I joined this forum just to say thank you!! This helped me as well. I shared it (with a link to here) on techspot, where I had first asked for help.

 

[dale5351]

I have been frustrated with this error for several days, and have researched many threads in this forum and others. I tried the delete *.sst files and that did not work. I tried resetting the login name and that did not work. Then I found a reference to the page link below -- did it (changing permissions on RSA files) and have been without the error for 8 hours now, instead of getting it every 10 or 15 minutes.

Event ID 102 ? PNRP Protocol

And just to give credit -- this was in a post by Streetwolf
http://www.sevenforums.com/network-sharing/29060-can-t-start-peer-name-resolution-protocol.html

 

[dale5351]

Event ID 102 — PNRP Protocol

I tried what they outlined (it's for Vista) but to no avail. I have no idea what the connection is between RSA and P2P.

I want to thank you directly for the reference to that article. It led me to the fix for me. What it took was the resetting of permissions on LOCAL USER as was suggested there. I'd tried all of the other things in this thread and other threads without success.

These error messages have now gone away.

 

[Rxich]

researched the problem and found the solution. A file was corrupted and deleting it got the pnrp service running. The file was recreated correctly when the pnrp service started up. Here's the file for future reference:

"c:\windows\serviceprofiles\localservice\appdata\roaming\peernetworking\idstore.sst"

this worked like a charm.

Thanks thanks thanks:d:d:d:d:d:d:d

 

[Tecknowolf]

Sorry to necro this post. I have the same problems, but..
I can't find \PeerNetworking\idstore.sst
My files go to Roaming, but that is as far as I can go.