Connecting from home PC to work VPN through dd-wrt router

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banrobertkaroly
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Joined: 04 May 2020
Posts: 11

PostPosted: Mon May 04, 2020 18:39    Post subject: Connecting from home PC to work VPN through dd-wrt router Reply with quote
Hi,

this weekend I installed dd-wrt on my ASUS RT-N18U router because I had some issues with it`s stock media server.
To cut story short I need to work from home, because of this pandemic. Until now I was using VPN for accessing the office network. After moving to dd-wrt I can`t connect from my PC to my work network, it just hangs showing "Connecting".

Do I need to do some additional setup?

I am using Windows 10 on my pc, the firmware on router is DD-WRT v3.0-r43028 std (04/29/20)

I really could use some help, I was unable to work today at all Sad

Thank`s in advance!
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banrobertkaroly
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Joined: 04 May 2020
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PostPosted: Mon May 04, 2020 19:45    Post subject: Reply with quote
If I`m waiting long enough I get the following message, see attachment.


IMG_20200504_223833.jpg
 Description:
 Filesize:  70.34 KB
 Viewed:  2257 Time(s)

IMG_20200504_223833.jpg


kernel-panic69
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Location: Texas, USA

PostPosted: Mon May 04, 2020 19:49    Post subject: Reply with quote
Is the firewall on DD-WRT configured properly?
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banrobertkaroly
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PostPosted: Mon May 04, 2020 20:08    Post subject: Reply with quote
Thank you for your answer!
I`ve tried connecting with disabled firewall, but the same result.
kernel-panic69
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PostPosted: Mon May 04, 2020 21:05    Post subject: Reply with quote
VPN passthrough, Security tab...
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Rocket222
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Joined: 26 Nov 2019
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PostPosted: Tue May 05, 2020 2:39    Post subject: Reply with quote
You may be in the same boat as mine. Try version r42617 or earlier.

https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324432
kernel-panic69
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Location: Texas, USA

PostPosted: Tue May 05, 2020 2:52    Post subject: Reply with quote
Do you have VPN passthrough enabled... or are you connecting the router to the VPN provider for entire LAN?
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banrobertkaroly
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Joined: 04 May 2020
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PostPosted: Tue May 05, 2020 3:28    Post subject: Reply with quote
The VPN passthrough was enabled by default, didn't changed that.
Sorry, I don't understand your second question, but yes I would like to get access to the entire LAN at work.
banrobertkaroly
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Joined: 04 May 2020
Posts: 11

PostPosted: Tue May 05, 2020 3:32    Post subject: Reply with quote
@Rocket222 version 42617 is working for you?
DoesItMatter
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Location: Pacific North West, USA

PostPosted: Tue May 05, 2020 4:00    Post subject: Reply with quote
To verify whether or not there are some setting affecting you in DD-WRT - try the following:

NAT/QoS -> DMZ tab

Whatever the PC / laptop you are using to connect, put that IP address into the DMZ then Save/Apply settings.

Make sure you have your firewall enabled on your PC and allow the VPN in the firewall rules.

It is NOT recommended to run your PC in DMZ as it's open to the internet.

What this is useful for is troubleshooting connectivity/setting issues.

If you can connect through VPN while under the DMZ, then there are definitely some DD-WRT settings interfering with your VPN connection.

DO NOT leave the DMZ setting enabled unless you realize the risks.
This is purely for troubleshooting connectivity.

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banrobertkaroly
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Joined: 04 May 2020
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PostPosted: Tue May 05, 2020 4:18    Post subject: Reply with quote
I tried the following without any luck:

-disabled firewall on pc
-disabled firewall on dd-wrt
-enabled and added pc`s ip to dmz
-vpn passthrough enabled
kernel-panic69
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Location: Texas, USA

PostPosted: Tue May 05, 2020 4:20    Post subject: Reply with quote
Is there a modem/router in between your Asus and the internet...
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banrobertkaroly
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Joined: 04 May 2020
Posts: 11

PostPosted: Tue May 05, 2020 4:27    Post subject: Reply with quote
No, there is no modem between the router and the internet.
It should something with dd-wrt firmware because 2 days ago when I had the stock Asus firmware on the router worked perfectly.

I`ve just tried to connect to work VPN via my mobile phones hotspot, and it works.
kernel-panic69
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Joined: 08 May 2018
Posts: 7178
Location: Texas, USA

PostPosted: Tue May 05, 2020 4:34    Post subject: Reply with quote
I find it difficult to believe that you do not have at least a modem. Whether you are on cable, *DSL, etc. - even fiber. There is always something in between your router and the Internet.
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Rocket222
DD-WRT Novice


Joined: 26 Nov 2019
Posts: 34

PostPosted: Tue May 05, 2020 4:40    Post subject: Reply with quote
banrobertkaroly wrote:
@Rocket222 version 42617 is working for you?


I am using r42335 and the PPTP VPN connection from Win10 is working for me. From the link I attached, some other user can use the PPTP VPN connection up to r42617, but not with any more recent versions of DD-WRT.
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