Client (W10) loses internet connection only on mobile interfaces

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robertroos
Posts: 18
Joined: Fri Jun 17, 2016 7:55 am

Client (W10) loses internet connection only on mobile interfaces

Post by robertroos » Thu Apr 05, 2018 5:35 am

Hi,

I'm trying to tackle an issue for a while. I have been using the VPN-client on several Microsoft Windows 10 machines successfully. But on certain systems that contain a mobile (GSM/UMTS) adapter the connection to internet gets lost after setting up the VPN connection. On the same systems I'm able to use the VPN client over LAN or WiFi connections. So it seems to be related to the mobile adapters. I tried to play around with metric settings but that didn't help. Does anyone have a good suggestion to solve this problem?

This is my routing table before initiating a connection:
(below you can see the table after initiating the connection)
===========================================================================
Interface List
7...00 ac cf ca 2b a9 ......VPN Client Adapter - VPN
17...00 ac 42 98 99 4d ......Npcap Loopback Adapter
4...d4 81 d7 85 0f 0d ......Intel(R) Ethernet Connection I219-LM
5...28 16 ad 0b 9b b8 ......Intel(R) Dual Band Wireless-AC 8260
2...28 16 ad 0b 9b b9 ......Microsoft Wi-Fi Direct Virtual Adapter
18...28 16 ad 0b 9b bc ......Bluetooth Device (Personal Area Network)
12...84 9b 89 5b 57 40 ......DW5811e SnapdragonT X7 LTE
1...........................Software Loopback Interface 1
13...00 00 00 00 00 00 00 e0 Microsoft Teredo Tunneling Adapter
===========================================================================

IPv4 Route Table
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 31.138.221.60 31.138.221.59 326
31.138.221.56 255.255.255.248 On-link 31.138.221.59 326
31.138.221.59 255.255.255.255 On-link 31.138.221.59 326
31.138.221.63 255.255.255.255 On-link 31.138.221.59 326
127.0.0.0 255.0.0.0 On-link 127.0.0.1 331
127.0.0.1 255.255.255.255 On-link 127.0.0.1 331
127.255.255.255 255.255.255.255 On-link 127.0.0.1 331
224.0.0.0 240.0.0.0 On-link 127.0.0.1 331
224.0.0.0 240.0.0.0 On-link 31.138.221.59 326
255.255.255.255 255.255.255.255 On-link 127.0.0.1 331
255.255.255.255 255.255.255.255 On-link 31.138.221.59 326
===========================================================================
Persistent Routes:
None

IPv6 Route Table
===========================================================================
Active Routes:
If Metric Network Destination Gateway
13 331 ::/0 On-link
1 331 ::1/128 On-link
13 331 2001::/32 On-link
13 331 2001:0:9d38:90d7:32:133e:e075:22c4/128
On-link
12 326 fe80::/64 On-link
13 331 fe80::/64 On-link
13 331 fe80::32:133e:e075:22c4/128
On-link
12 326 fe80::e19f:6740:1d7:dc92/128
On-link
1 331 ff00::/8 On-link
13 331 ff00::/8 On-link
12 326 ff00::/8 On-link
===========================================================================
Persistent Routes:
None


After the VPN connection has been initiated:

===========================================================================
Interface List
7...00 ac cf ca 2b a9 ......VPN Client Adapter - VPN
17...00 ac 42 98 99 4d ......Npcap Loopback Adapter
4...d4 81 d7 85 0f 0d ......Intel(R) Ethernet Connection I219-LM
5...28 16 ad 0b 9b b8 ......Intel(R) Dual Band Wireless-AC 8260
2...28 16 ad 0b 9b b9 ......Microsoft Wi-Fi Direct Virtual Adapter
18...28 16 ad 0b 9b bc ......Bluetooth Device (Personal Area Network)
12...84 9b 89 5b 57 40 ......DW5811e SnapdragonT X7 LTE
1...........................Software Loopback Interface 1
13...00 00 00 00 00 00 00 e0 Microsoft Teredo Tunneling Adapter
===========================================================================

IPv4 Route Table
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 31.138.221.60 31.138.221.59 326
31.138.221.56 255.255.255.248 On-link 31.138.221.59 326
31.138.221.59 255.255.255.255 On-link 31.138.221.59 326
31.138.221.63 255.255.255.255 On-link 31.138.221.59 326
62.140.138.233 255.255.255.255 31.138.221.60 31.138.221.59 326
91.134.2.64 255.255.255.255 31.138.221.60 31.138.221.59 326
127.0.0.0 255.0.0.0 On-link 127.0.0.1 331
127.0.0.1 255.255.255.255 On-link 127.0.0.1 331
127.255.255.255 255.255.255.255 On-link 127.0.0.1 331
192.168.0.0 255.255.255.0 192.168.30.1 192.168.30.3 2
192.168.30.0 255.255.255.0 On-link 192.168.30.3 257
192.168.30.3 255.255.255.255 On-link 192.168.30.3 257
192.168.30.255 255.255.255.255 On-link 192.168.30.3 257
224.0.0.0 240.0.0.0 On-link 127.0.0.1 331
224.0.0.0 240.0.0.0 On-link 192.168.30.3 257
224.0.0.0 240.0.0.0 On-link 31.138.221.59 326
255.255.255.255 255.255.255.255 On-link 127.0.0.1 331
255.255.255.255 255.255.255.255 On-link 192.168.30.3 257
255.255.255.255 255.255.255.255 On-link 31.138.221.59 326
===========================================================================
Persistent Routes:
None

IPv6 Route Table
===========================================================================
Active Routes:
If Metric Network Destination Gateway
1 331 ::1/128 On-link
17 291 fe80::/64 On-link
12 326 fe80::/64 On-link
17 291 fe80::7015:bc49:d1fc:5b2b/128
On-link
12 326 fe80::e19f:6740:1d7:dc92/128
On-link
1 331 ff00::/8 On-link
17 291 ff00::/8 On-link
12 326 ff00::/8 On-link
===========================================================================
Persistent Routes:
None

thisjun
Posts: 2647
Joined: Mon Feb 24, 2014 11:03 am

Re: Client (W10) loses internet connection only on mobile interfaces

Post by thisjun » Fri Apr 27, 2018 2:24 am

The issue is fixed by Build 9666.
http://www.softether.org/5-download/history

You need to update the driver of Virtual NIC.

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