![Cisco Jabber – “Cannot communicate with the Server” due to 407 Proxy Authentication Required – Paul Tursan Cisco Jabber – “Cannot communicate with the Server” due to 407 Proxy Authentication Required – Paul Tursan](https://paultursan.com/wp-content/uploads/2016/08/overview-300x179.png)
Cisco Jabber – “Cannot communicate with the Server” due to 407 Proxy Authentication Required – Paul Tursan
![Troubleshooting: Jabber cannot communicate with the server when using MRA via Expressway - Cisco Community Troubleshooting: Jabber cannot communicate with the server when using MRA via Expressway - Cisco Community](https://community.cisco.com/legacyfs/online/media/jabber_8.png)
Troubleshooting: Jabber cannot communicate with the server when using MRA via Expressway - Cisco Community
![Troubleshooting: Jabber cannot communicate with the server when using MRA via Expressway - Cisco Community Troubleshooting: Jabber cannot communicate with the server when using MRA via Expressway - Cisco Community](https://community.cisco.com/legacyfs/online/media/jabber_4_0.png)
Troubleshooting: Jabber cannot communicate with the server when using MRA via Expressway - Cisco Community
![Troubleshooting: Jabber cannot communicate with the server when using MRA via Expressway - Cisco Community Troubleshooting: Jabber cannot communicate with the server when using MRA via Expressway - Cisco Community](https://community.cisco.com/legacyfs/online/media/jabber_3_0.png)