Showing results for 
Search instead for 
Did you mean: 

Announcement“Cisco Design Thinking Workshop”. Cisco Small Business is excited to invite its Silicon Valley customers to an exclusive interactive one-day session between customers and product Managers.  If you are interested in this exclusive workshop, please fill out the Registration Form. For more information, please check out our FAQ

Get the latest new and information the November issue of the Cisco Small Business Monthly Newsletter


RV340 - SSL VPN Error


HI. I can establish SSL VPN connection for my RV340.


I get the following errors. 

Anyone would can help me?


2019-10-18T09:19:44+01:00 <error>log_sslvpnac: facility=SslVpn;msg=ERROR sslserver.c.989[743FF470] sslsever_send_data: Error: Incomplete write, -1 of 471 bytes written;


2019-10-18T09:19:40+01:00 <error>log_sslvpnac: facility=SslVpn;msg=ERROR sslserver.c.2370[704B7470] connection_thread: Error accepting SSL connection;


2019-10-18T09:19:40+01:00 <error>log_sslvpnac: facility=SslVpn;msg=ERROR sslserver.c.3146[704B7470] nonblocking_ssl_accept: Peer closed connection during SSL handshake,status:0;


2019-10-18T09:19:36+01:00 <error>log_sslvpnac: facility=SslVpn;msg=DEBUG sslvpn_aaa_stubs.c.105[743FF470] sbtg_authorize: ret 0.;

Everyone's tags (1)
Cisco Employee

Re: RV340 - SSL VPN Error

Do you use the Cisco Anyconnect Client ?

Re: RV340 - SSL VPN Error

Yes, We use the Any connect client version 3.1.00495
Cisco Employee

Re: RV340 - SSL VPN Error

I need to check, but I believe you need to be on version 4.



Re: RV340 - SSL VPN Error

Honestly, these failed VPN connection attempts have NO binding to Cisco AnyConnect SW. Sorry Cisco guys, but tell me a reason or evidence what do you have for this opinion.

Based on firewall logs, I can see hundreds of similar attempts per month in times when evidently no VPN connection was initiated from my side. Also, the frequency of these attempts (5-10 within a few seconds) leads to the conclusion that these attempts are 3rd party common scan. As the firewall doesn't log directly the source IP addresses, I can only speculate, that a "number" in brackets is a HEX representation of DEC IP addresses (YY.YY.YY.YY HEX -> XXX.XXX.XXX.XXX DEC). If so, these IP address sources are from China (China Unicom, etc.).

Cisco Employee

Re: RV340 - SSL VPN Error

I assume in your case somebody tries to connect to your router.


In the case below the SSL VPN feature on the RV340 when enabled allows connection from a client using Cisco Anyconnect Secure Mobility Client. That is the only function it has. Martin asks for help how to make that work.

I understand he tries to connect from his client and gets an error in the RV340.