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Forum Discussion

mmwolf's avatar
mmwolf
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Aug 04, 2019

Virtual server unreachable with 3g and 4g only ADSL

Hello Team,   on our production , we have a virtual server with two node . the web site is published on port 443 , it was working normaly but 5 days ago it's doesn't work with 3G and LTE connexi...
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Simon_Blakely's avatar
Simon_Blakely
Icon for Employee rankEmployee
Aug 04, 2019

If the virtual server is a Fastl4, then the certificate comes from the pool member - FastL4 is a TCP passthrough with no SSL termination. Any SSL protocol issues are between the pool member and the client.

 

Try getting a tcpdump of the traffic between a client and the virtual server, and look at the ClientHello, ServerHello and any Fatal alerts to see who terminates the handshake.

 

To me, it sounds like a Certificate Trust issue with mobile clients, but I'd need more data to be sure.