# Wireguard not transferring any data since 7.5 update?

**URL:** https://dietpi.com/forum/t/wireguard-not-transferring-any-data-since-7-5-update/5642
**Category:** Troubleshooting
**Created:** [28 August 2021 05:37 UTC](https://dietpi.com/forum/t/wireguard-not-transferring-any-data-since-7-5-update/5642 "2021-08-28T05:37:16Z")
**Posts on this page:** 2
**Page:** 1

<div class="post-metadata">

### Author: ![Pinocchio](https://dietpi.com/forum/letter_avatar_proxy/v4/letter/p/f07891/32.png) [@Pinocchio](https://dietpi.com/forum/u/Pinocchio)
#### Post date: [28 August 2021 05:37 UTC](https://dietpi.com/forum/t/wireguard-not-transferring-any-data-since-7-5-update/5642/1 "2021-08-28T05:37:16Z")

</div>

HI community,

not sure what happens, wireguard worked flawlessly before, now I can connect but not getting anything transferred. no ping possible.

pivpn and wireguard installed.

wg output:

```nohighlight
cloud:~# wg
interface: wg0
  public key: ***
  private key: (hidden)
  listening port: 51820

peer: ***
  preshared key: (hidden)
  endpoint: ***
  allowed ips: 10.6.0.2/32
  latest handshake: 10 hours, 1 minute, 35 seconds ago
  transfer: 5.52 KiB received, 188 B sent

```

```nohighlight
cloud:/etc/wireguard# cat wg0.conf
[Interface]
PrivateKey = I***
Address = 10.6.0.1/24
MTU = 1420
ListenPort = 51820
### begin User ###
[Peer]
PublicKey = ***
PresharedKey = ***
AllowedIPs = 10.6.0.2/32
### end User ###
cloud:/etc/wireguard#

```

```nohighlight
cloud:/etc/wireguard/configs# cat User.conf
[Interface]
PrivateKey = ***
Address = 10.6.0.2/24
MTU = 1420
DNS = 10.0.1.*

[Peer]
PublicKey = ***
PresharedKey = ***
Endpoint = ***:51820
AllowedIPs = 0.0.0.0/0, ::0/0
cloud:/etc/wireguard/configs#

```

iptables -L

```nohighlight
cloud:/etc/wireguard/configs# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination

Chain FORWARD (policy ACCEPT)
target prot opt source destination

Chain OUTPUT (policy ACCEPT)
target prot opt source destination
cloud:/etc/wireguard/configs#

```

```nohighlight
cloud:/etc/wireguard/configs# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default router 0.0.0.0 UG 0 0 0 eth0
10.0.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
10.6.0.0 0.0.0.0 255.255.255.0 U 0 0 0 wg0
10.6.0.2 0.0.0.0 255.255.255.255 UH 0 0 0 *
cloud:/etc/wireguard/configs#

```

simple and plain, all ok up to the issue occurs.  
dstnat port udp/51820 forwared on Mikrotik to the wireguard Dietpi.

what I have not thought of? why it is not working anymore from one day to another?  
all other raspis, network config or firewalling not changed in the environment.

Connection tested on IOS wireguard client and windows official wireguard client.

thanks in advance  
kind regards,  
Pinocchio

---

<div class="post-metadata">

### Author: ![Joulinar](https://dietpi.com/forum/user_avatar/dietpi.com/joulinar/32/57_2.png) [@Joulinar](https://dietpi.com/forum/u/Joulinar)
#### Post date: [28 August 2021 06:56 UTC](https://dietpi.com/forum/t/wireguard-not-transferring-any-data-since-7-5-update/5642/2 "2021-08-28T06:56:51Z")

</div>

Looks like your clients are not able to connect on network level anyone. It see the last handshake more than 10 hours ago.

```nohighlight
latest handshake: 10 hours, 1 minute, 35 seconds ago

```

Means the basic connection is not working at all

Are you sure you are using correct external IP or DDNS? Probably your external IP changed in between but your DDNS was not updated? Usually Wireguard apps on your clients should have a log that could be checked. At least the windows app should have. Unfortunately there is no real log on server side.