[SOLVED] OpenVPN keeps reconnecting every hour

[PimB]

I'm sorry, yet another question from me.

OpenVPN is reconnecting exactly every hour while I used reneg 0 in the config and reneg-sec 0; in de advanced config.

How can this be?

[mimugmail]

Had similar issue, was broken cable modem at the client Side. Can you check from other location?

[PimB]

It's a connection to a VPN provider, shall I check it with a other WAN uplink?

[mimugmail]

If possible, yes. LTE Hotspot?

[PimB]

I don't know how. If I use a wireless dongle for wifi it's been set up as a AP instead of a client.

[franco]

reneg-sec 0; in both client and server?


Cheers,
Franco

[PimB]

Correct. And the problem isn't the internet connection. But sometimes it's completely frozen and I discovered something weird, A LOT of packets in and out:

[mimugmail]

What about logs on client and server at the specific time?

[PimB]

Stupid of me but I didn't save those. You see the connection renegotiating and the internet connection drops for a few seconds. When this happens, it's takes longer and the connection closes and it's trying to reconnect but slowly.

I'll immediately save the log when it happens again. But I do notice this now:
Jul 19 09:16:45   openvpn[73285]: MANAGEMENT: TCP send error: Broken pipe
Strange...

It a connection with a VPN provider by the way, not my own site-to-site.

[PimB]

This happens every hour

Code Select Expand

Jul 19 11:16:34 openvpn[73285]: Control Channel: TLSv1.2, cipher TLSv1/SSLv3 ECDHE-RSA-AES256-GCM-SHA384, 2048 bit RSA
Jul 19 11:16:34 openvpn[73285]: Incoming Data Channel: Cipher 'AES-256-GCM' initialized with 256 bit key
Jul 19 11:16:34 openvpn[73285]: Outgoing Data Channel: Cipher 'AES-256-GCM' initialized with 256 bit key
Jul 19 11:16:34 openvpn[73285]: VERIFY OK: depth=0, CN=nl307.nordvpn.com
Jul 19 11:16:34 openvpn[73285]: VERIFY EKU OK
Jul 19 11:16:34 openvpn[73285]: ++ Certificate has EKU (str) TLS Web Server Authentication, expects TLS Web Server Authentication
Jul 19 11:16:34 openvpn[73285]: Validating certificate extended key usage
Jul 19 11:16:34 openvpn[73285]: VERIFY KU OK
Jul 19 11:16:34 openvpn[73285]: VERIFY OK: depth=1, C=PA, O=NordVPN, CN=NordVPN CA2
Jul 19 11:16:34 openvpn[73285]: VERIFY OK: depth=2, C=PA, O=NordVPN, CN=NordVPN Root CA
Jul 19 11:16:34 openvpn[73285]: TLS: tls_process: killed expiring key

[mimugmail]

Do you have a local AV scanner active? Trendmicro? Kaspersky?

[PimB]

Do you have a local AV scanner active? Trendmicro? Kaspersky?

None. But the connection is steady now for longer than one hour after 2 reboots. I guess I'll have to wait and see for now.

[PimB]

Thanks for all the fast responses!

The problem is gone... In addition I've used Traffic Shaper to set the max soeed a bit lower and the CPU doesn't go to 100% (and stalling the device) anymore.