Slow connection to VPN hub, tls-error

I am experiencing issues with connecting to my VPN hub from my Windows computer. I have tried with both Teltonikas app and with vanilla OpenVPN. I am using the Germany VPN server from Sweden and the ovpn config file downloaded from RMS. Connecting to the hub takes a lot of time and sometimes completely fails. Teltonikas app then displays a tls-error message.
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The log in OpenVPN client shows that TLS negotiation is failing repeatedly:

2024-02-08 10:12:47 --cipher is not set. Previous OpenVPN version defaulted to BF-CBC as fallback when cipher negotiation failed in this case. If you need this fallback please add ‘–data-ciphers-fallback BF-CBC’ to your configuration and/or add BF-CBC to --data-ciphers.
2024-02-08 10:12:47 OpenVPN 2.5.8 [git:none/0357ceb877687faa] Windows-MSVC [SSL (OpenSSL)] [LZO] [LZ4] [PKCS11] [AEAD] built on Dec 2 2022
2024-02-08 10:12:47 Windows version 10.0 (Windows 10 or greater) 64bit
2024-02-08 10:12:47 library versions: OpenSSL 1.1.1s 1 Nov 2022, LZO 2.10
2024-02-08 10:12:48 TCP/UDP: Preserving recently used remote address: [AF_INET]xx.xx.xx.81:37885
2024-02-08 10:12:48 UDP link local: (not bound)
2024-02-08 10:12:48 UDP link remote: [AF_INET]xx.xx.xx.81:37885
2024-02-08 10:13:48 TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)
2024-02-08 10:13:48 TLS Error: TLS handshake failed
2024-02-08 10:13:48 SIGUSR1[soft,tls-error] received, process restarting
2024-02-08 10:13:53 TCP/UDP: Preserving recently used remote address: [AF_INET]xx.xx.xx.143:37885
2024-02-08 10:13:53 UDP link local: (not bound)
2024-02-08 10:13:53 UDP link remote: [AF_INET]xx.xx.xx.143:37885
2024-02-08 10:14:53 TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)
2024-02-08 10:14:53 TLS Error: TLS handshake failed
2024-02-08 10:14:53 SIGUSR1[soft,tls-error] received, process restarting
2024-02-08 10:14:58 TCP/UDP: Preserving recently used remote address: [AF_INET]xx.xx.xx.81:37885
2024-02-08 10:14:58 UDP link local: (not bound)
2024-02-08 10:14:58 UDP link remote: [AF_INET]xx.xx.xx.81:37885
2024-02-08 10:15:04 WARNING: ‘link-mtu’ is used inconsistently, local=‘link-mtu 1541’, remote=‘link-mtu 1542’
2024-02-08 10:15:04 WARNING: ‘comp-lzo’ is present in remote config but missing in local config, remote=‘comp-lzo’
2024-02-08 10:15:04 [teltonika-vpn-wZhs9E0qKVO1ecy5] Peer Connection Initiated with [AF_INET]xx.xx.xx.81:37885
2024-02-08 10:15:04 open_tun
2024-02-08 10:15:04 tap-windows6 device [Anslutning till lokalt nätverk] opened
2024-02-08 10:15:04 Notified TAP-Windows driver to set a DHCP IP/netmask of 192.168.255.10/255.255.255.252 on interface {CED7DEE1-B634-4FC4-9711-E9337293C454} [DHCP-serv: 192.168.255.9, lease-time: 31536000]
2024-02-08 10:15:04 Successful ARP Flush on interface [24] {CED7DEE1-B634-4FC4-9711-E9337293C454}
2024-02-08 10:15:04 IPv4 MTU set to 1500 on interface 24 using service
2024-02-08 10:15:09 Initialization Sequence Completed

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