Forum Discussion

Star

Jul 21, 2018

Solved

R7900P ReadyShare - Windows cannot access

Hi Experts, I really appreciate if someone can shed light on below problem. All of a sudden this morning, I lost connection to USB storage connected to my R7900P router. I disconnected network ...

Troubleshooting

IrvSp
Jul 29, 2018
capilano wrote:

5. Result: "The Windows Defender Firewall rule SMB Block Outbound is blocking your connection"

Is that controlled by Group Policy? I've read some post saying a user was able to convince his Admin to adjust GP so he can use ReadyShare again...

That is interesting, and probably the problem for you. I don't use Windows Defender for the Fireware, I have Norton ISS installed with does it.

Wonder if you ran some 'WannaCry" program that 'protected you against it and it made changes for you?

What you will need to do is open Settings for Windows Defender and see what rule is blocking port 445, and there could be others as well.

Some reading:

https://support.microsoft.com/en-us/help/3185535/guidelines-for-blocking-specific-firewall-ports-to-prevent-smb-traffic

https://docs.microsoft.com/en-us/windows/security/identity-protection/windows-firewall/create-an-inbound-port-rule

https://support.symantec.com/en_US/article.TECH106142.html

https://www.tomshardware.com/news/how-to-open-firewall-ports-in-windows-10,36451.html

https://support.microsoft.com/en-us/help/3185535/guidelines-for-blocking-specific-firewall-ports-to-prevent-smb-traffic

https://docs.microsoft.com/en-us/windows/security/identity-protection/windows-firewall/create-an-outbound-port-rule

https://www.online-tech-tips.com/windows-10/adjust-windows-10-firewall-settings/

A lot of those are duplicate info mostly, but worth looking at them.

Better yet, before venturing down that path, why not just TEST with the Defender Firewall turned off and see if that is actually the problem?

capilano

Star

Jul 29, 2018

Hi IrvSp,

Thanks for pointing out my screen shots are about Homegroups. If MS discontinues it, I am most likely better off not to fight that. My All Networks is set as in your screen shot, but I guess that's also part of Homegroup, right?

When you say "normal TCP/IP network sharing." Is that what the "fix" link is about? If yes, I also tried that but doesn't work - my laptop still says "Network discovery is turned off..." like in the 1st screen shot.

I did sth extra:

1. Click on "Network discovery is turned off..."

2. Choose Open Network and Sharing Center

3. Click Network troubleshooter

4. In Windows Network Diagnostics window, enter \\ReadyShare, click Next

5. Result: "The Windows Defender Firewall rule SMB Block Outbound is blocking your connection"

Is that controlled by Group Policy? I've read some post saying a user was able to convince his Admin to adjust GP so he can use ReadyShare again...

Please let me know if I'm on the right track of analyzing this issue...

Thanks,

IrvSp

Master

Jul 29, 2018

capilano wrote:

5. Result: "The Windows Defender Firewall rule SMB Block Outbound is blocking your connection"

Is that controlled by Group Policy? I've read some post saying a user was able to convince his Admin to adjust GP so he can use ReadyShare again...

That is interesting, and probably the problem for you. I don't use Windows Defender for the Fireware, I have Norton ISS installed with does it.

Wonder if you ran some 'WannaCry" program that 'protected you against it and it made changes for you?

What you will need to do is open Settings for Windows Defender and see what rule is blocking port 445, and there could be others as well.

Some reading:

https://support.microsoft.com/en-us/help/3185535/guidelines-for-blocking-specific-firewall-ports-to-prevent-smb-traffic

https://docs.microsoft.com/en-us/windows/security/identity-protection/windows-firewall/create-an-inbound-port-rule

https://support.symantec.com/en_US/article.TECH106142.html

https://www.tomshardware.com/news/how-to-open-firewall-ports-in-windows-10,36451.html

https://support.microsoft.com/en-us/help/3185535/guidelines-for-blocking-specific-firewall-ports-to-prevent-smb-traffic

https://docs.microsoft.com/en-us/windows/security/identity-protection/windows-firewall/create-an-outbound-port-rule

https://www.online-tech-tips.com/windows-10/adjust-windows-10-firewall-settings/

A lot of those are duplicate info mostly, but worth looking at them.

Better yet, before venturing down that path, why not just TEST with the Defender Firewall turned off and see if that is actually the problem?

capilano
Star
Jul 29, 2018
Thanks for all the prompt help, IrvSp.

Those articles were very helpful. My problem is resolved.
IrvSp
Master
Jul 29, 2018
capilano wrote:

Thanks for all the prompt help, IrvSp.

Those articles were very helpful. My problem is resolved.

OK, now what did you actually have to do? I assume you tested with SMB1 off to ensure you needed it on?