[SOLVED]Wireguard with 1 peer works but not with 2 peers

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apacheguy
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Joined: 26 Jun 2008
Posts: 88
PostPosted: Mon Jan 23, 2023 2:26    Post subject: [SOLVED]Wireguard with 1 peer works but not with 2 peers Reply with quote
Wireguard has been working flawlessly on my dd-wrt router for months. Today, I needed to add a second peer. I setup the peer using the dd-wrt GUI. After doing this, my wireguard peers no longer see LAN/WAN clients through the tunnel. I did not make any config changes to my first peer.

Here is my dd-wrt log file and it is creating the routes:

Code:
Jan 22 17:30:13 DD-WRT user.info root: WireGuard number of non failed tunnels in fail set: 0
Jan 22 17:30:14 DD-WRT user.info root: Enable WireGuard interface oet1 on port 51820
Jan 22 17:30:14 DD-WRT user.info root: WireGuard 10.4.0.1/24 added to oet1
Jan 22 17:30:14 DD-WRT user.info root: WireGuard waited 3 seconds to set routes for oet1
Jan 22 17:30:14 DD-WRT user.info root: WireGuard route 10.4.0.2/24 added via oet1
Jan 22 17:30:14 DD-WRT user.info root: WireGuard route 10.4.0.3/24 added via oet1
Jan 22 17:30:15 DD-WRT user.info root: WireGuard Inbound Firewall deactivated on oet1
Jan 22 17:30:15 DD-WRT user.info root: WireGuard waited 1 seconds to set routes for oet1
Jan 22 17:30:15 DD-WRT user.info root: WireGuard route 10.4.0.2/24 added via oet1
Jan 22 17:30:15 DD-WRT user.info root: WireGuard route 10.4.0.3/24 added via oet1


Here is the peer log file

Code:
2023-01-22 16:58:31.725067: [TUN] [wireguard_config_oet1_peer0] Starting WireGuard/0.5.3 (Windows 10.0.19044; amd64)
2023-01-22 16:58:31.725067: [TUN] [wireguard_config_oet1_peer0] Watching network interfaces
2023-01-22 16:58:31.728340: [TUN] [wireguard_config_oet1_peer0] Resolving DNS names
2023-01-22 16:58:31.739058: [TUN] [wireguard_config_oet1_peer0] Creating network adapter
2023-01-22 16:58:31.837388: [TUN] [wireguard_config_oet1_peer0] Using existing driver 0.10
2023-01-22 16:58:31.845675: [TUN] [wireguard_config_oet1_peer0] Creating adapter
2023-01-22 16:58:32.264449: [TUN] [wireguard_config_oet1_peer0] Using WireGuardNT/0.10
2023-01-22 16:58:32.264449: [TUN] [wireguard_config_oet1_peer0] Enabling firewall rules
2023-01-22 16:58:32.197426: [TUN] [wireguard_config_oet1_peer0] Interface created
2023-01-22 16:58:32.267895: [TUN] [wireguard_config_oet1_peer0] Dropping privileges
2023-01-22 16:58:32.268515: [TUN] [wireguard_config_oet1_peer0] Setting interface configuration
2023-01-22 16:58:32.268515: [TUN] [wireguard_config_oet1_peer0] Peer 1 created
2023-01-22 16:58:32.270095: [TUN] [wireguard_config_oet1_peer0] Setting device v4 addresses
2023-01-22 16:58:32.270095: [TUN] [wireguard_config_oet1_peer0] Interface up
2023-01-22 16:58:32.277291: [TUN] [wireguard_config_oet1_peer0] Setting device v6 addresses
2023-01-22 16:58:32.366550: [TUN] [wireguard_config_oet1_peer0] Startup complete
2023-01-22 16:58:32.368027: [TUN] [wireguard_config_oet1_peer0] Sending handshake initiation to peer 1 (x.x.x.x:51820)
2023-01-22 16:58:32.396327: [TUN] [wireguard_config_oet1_peer0] Receiving handshake response from peer 1 (x.x.x.x:51820)
2023-01-22 16:58:32.396327: [TUN] [wireguard_config_oet1_peer0] Keypair 1 created for peer 1
2023-01-22 16:58:42.440867: [TUN] [wireguard_config_oet1_peer0] Receiving keepalive packet from peer 1 (x.x.x.x:51820)
2023-01-22 16:58:52.515454: [TUN] [wireguard_config_oet1_peer0] Receiving keepalive packet from peer 1 (x.x.x.x:51820)
2023-01-22 16:59:02.540182: [TUN] [wireguard_config_oet1_peer0] Receiving keepalive packet from peer 1 (x.x.x.x:51820)
2023-01-22 16:59:13.199389: [TUN] [wireguard_config_oet1_peer0] Receiving keepalive packet from peer 1 (x.x.x.x:51820)
2023-01-22 16:59:23.431219: [TUN] [wireguard_config_oet1_peer0] Receiving keepalive packet from peer 1 (x.x.x.x:51820)
2023-01-22 16:59:33.940753: [TUN] [wireguard_config_oet1_peer0] Receiving keepalive packet from peer 1 (x.x.x.x:51820)
2023-01-22 16:59:44.022006: [TUN] [wireguard_config_oet1_peer0] Receiving keepalive packet from peer 1 (x.x.x.x:51820)
2023-01-22 16:59:56.068763: [TUN] [wireguard_config_oet1_peer0] Receiving keepalive packet from peer 1 (x.x.x.x:51820)
2023-01-22 17:00:06.241692: [TUN] [wireguard_config_oet1_peer0] Receiving keepalive packet from peer 1 (x.x.x.x:51820)
2023-01-22 17:00:17.192981: [TUN] [wireguard_config_oet1_peer0] Receiving keepalive packet from peer 1 (x.x.x.x:51820)
2023-01-22 17:00:28.043528: [TUN] [wireguard_config_oet1_peer0] Receiving keepalive packet from peer 1 (x.x.x.x:51820)
2023-01-22 17:00:32.981243: [TUN] [wireguard_config_oet1_peer0] Sending handshake initiation to peer 1 (x.x.x.x:51820)
2023-01-22 17:00:33.010374: [TUN] [wireguard_config_oet1_peer0] Receiving handshake response from peer 1 (x.x.x.x:51820)
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egc
DD-WRT Guru


Joined: 18 Mar 2014
Posts: 12877
Location: Netherlands
PostPosted: Mon Jan 23, 2023 12:39    Post subject: Reply with quote
What router and which build?

Have a look at the WireGuard Server setup guide and compare your settings:
https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=327397

Otherwise post a screenshot of your settings
_________________
Routers:Netgear R7000, R6400v1, R6400v2, EA6900 (XvortexCFE), E2000, E1200v1, WRT54GS v1.
Install guide R6400v2, R6700v3,XR300:https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=316399
Install guide R7800/XR500: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=320614
Forum Guide Lines (important read):https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324087
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apacheguy
DD-WRT User


Joined: 26 Jun 2008
Posts: 88
PostPosted: Mon Jan 23, 2023 16:30    Post subject: Reply with quote
R7000P 48567

Here's the config. Sensitive info removed.
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egc
DD-WRT Guru


Joined: 18 Mar 2014
Posts: 12877
Location: Netherlands
PostPosted: Mon Jan 23, 2023 17:09    Post subject: Reply with quote
Try with allowed IP's /32
_________________
Routers:Netgear R7000, R6400v1, R6400v2, EA6900 (XvortexCFE), E2000, E1200v1, WRT54GS v1.
Install guide R6400v2, R6700v3,XR300:https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=316399
Install guide R7800/XR500: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=320614
Forum Guide Lines (important read):https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324087
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apacheguy
DD-WRT User


Joined: 26 Jun 2008
Posts: 88
PostPosted: Mon Jan 23, 2023 18:29    Post subject: Reply with quote
Hit the nail on the head. SOLVED.
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