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Skype sending and receiving inconsistent

Hello guys.

 

I'm having trouble with skype windows 10 . Even creating a rule with any destination, services any, Intrusion Prevention is NONE, Web Policy is NONE, Application Control is NONE. And even then Skype does not connect correctly. Sometimes it receives but it does not send. Sometimes it does not receive and it does not send. Sometimes it works normal. For several moments he is connecting and not charging.

 

In the logs it does not show any blocking and in the packet capture there is no violation. I suspect you have some internal inspection yet that is breaking the connection. Sophos Support is not identifying. I am using version 17.1.3.

I ended up stopping the IPS service because even the rule configured with NONE was logging in "Reset outside window".

 

-microapp disable.

console> system application_classification microapp-discovery show

Off

console> show advanced-firewall
Strict Policy : on
FtpBounce Prevention : control
Tcp Conn. Establishment Idle Timeout : 10800
UDP Timeout Stream : 60
Fragmented Traffic Policy : allow
Midstream Connection Pickup : off
TCP Seq Checking : on
TCP Window Scaling : on
TCP Appropriate Byte Count : on
TCP Selective Acknowledgements : on
TCP Forward RTO-Recovery[F-RTO] : off
TCP TIMESTAMPS : off
Strict ICMP Tracking : off
ICMP Error Message : allow
IPv6 Unknown Extension Header : deny


Bypass Stateful Firewall
------------------------
Source Genmask Destination Genmask


NAT policy for system originated traffic
---------------------
Destination Network Destination Netmask Interface SNAT IP

 

console> show ips
ips-settings ips_conf
console> show ips-settings
-------------IPS Settings-------------
stream on
lowmem off
maxsesbytes 0
maxpkts 8
enable_appsignatures on
http_response_scan_limit 65535
search_method hyperscan
sip_preproc enabled
sip_ignore_call_channel enabled

-------------IPS Instances------------
IPS CPU
1 0
2 1

Anyone with similar issues in this release?

 

 

 


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Parents
  • Have you tried to allow WLM WebChat on application policy? I had same issue wherein some users could not send a messages while the others do not have issue at all. I have checked on log viewer and there's WLM WebChat being Denied, I've allowed it and it resolved my issue.

  • Hi

    I think my problem is before application control. Because I have a totally liberated station, with any services and any destinaton. No WEB policies and applications and I am facing these problems.

    But anyway I've done the release of WLM Chat.

    Can you tell me if Skype may not be delivering this message because of a delay problem? I noticed on a test somewhere else now that I do not get a message on the accounts I was testing on that client. Like they're late.

Reply
  • Hi

    I think my problem is before application control. Because I have a totally liberated station, with any services and any destinaton. No WEB policies and applications and I am facing these problems.

    But anyway I've done the release of WLM Chat.

    Can you tell me if Skype may not be delivering this message because of a delay problem? I noticed on a test somewhere else now that I do not get a message on the accounts I was testing on that client. Like they're late.

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