topic C819 Cellular Connection Issue..... in Wireless https://community.cisco.com/t5/wireless/c819-cellular-connection-issue/m-p/2970373#M95962 <P>fellow cisco users, we have deployed approximately 15 Cisco C819HG ISRs to remote locations. _all the routers deployed are of the 4G Verizon version and they work very well. _my issue is, when the wireless carrier service drops and comes back in 3G mode the router connects as advertised but, when the wireless service steps up to 4G(LTE) the router stays at the 3G technology and requires a cellular interface restart to connect at the 4G technology. _my question, is there a parameter i'm missing to configure the ISR to auto reconnect with 4G technology when available.??? _i have included my ISR config.</P> <P><BR />version 15.3<BR />service timestamps debug datetime msec<BR />service timestamps log datetime msec<BR />no service password-encryption<BR />!<BR />chat-script lte "" "AT!CALL" TIMEOUT 20 "OK"<BR />!<BR />controller Cellular 0<BR />!<BR />interface Cellular0<BR /> description $FW_OUTSIDE$<BR /> ip address negotiated<BR /> ip access-group 104 in<BR /> ip nat outside<BR /> ip virtual-reassembly in<BR /> encapsulation slip<BR /> dialer in-band<BR /> dialer idle-timeout 0<BR /> dialer string lte<BR /> dialer-group 1<BR /> async mode interactive<BR /> crypto map SDM_CMAP_1<BR />!<BR />interface FastEthernet0<BR /> no ip address<BR />!<BR />interface GigabitEthernet0<BR /> no ip address<BR /> shutdown<BR /> duplex auto<BR /> speed auto<BR />!<BR />interface Serial0<BR /> no ip address<BR /> shutdown<BR /> clock rate 2000000<BR />!<BR />interface Vlan1<BR /> description $FW_INSIDE$<BR /> ip address xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx <BR /> ip access-group 103 in<BR /> ip nat inside<BR /> ip virtual-reassembly in<BR />!<BR />ip forward-protocol nd<BR />!<BR />ip route 0.0.0.0 0.0.0.0 Cellular0<BR />!<BR />dialer-list 1 protocol ip permit<BR />!<BR />route-map SDM_RMAP_1 permit 1<BR /> match ip address 101<BR />!<BR />control-plane<BR />!<BR />mgcp behavior rsip-range tgcp-only<BR />mgcp behavior comedia-role none<BR />mgcp behavior comedia-check-media-src disable<BR />mgcp behavior comedia-sdp-force disable<BR />!<BR />mgcp profile default<BR />!<BR />line con 0<BR /> no modem enable<BR />line aux 0<BR />line 2<BR /> no activation-character<BR /> no exec<BR /> transport preferred none<BR /> transport input all<BR /> stopbits 1<BR />line 3<BR /> script dialer lte<BR /> modem InOut<BR /> no exec<BR /> transport input all<BR /> rxspeed 100000000<BR /> txspeed 50000000<BR />line vty 0 4<BR /> login local<BR /> transport input all<BR />!<BR />scheduler allocate 20000 1000<BR />ntp master 1<BR />ntp update-calendar<BR />ntp server xxx.xxx.xxx.xxx prefer source Cellular0<BR />!<BR />end</P> Mon, 05 Jul 2021 13:01:10 GMT swclark 2021-07-05T13:01:10Z C819 Cellular Connection Issue..... https://community.cisco.com/t5/wireless/c819-cellular-connection-issue/m-p/2970373#M95962 <P>fellow cisco users, we have deployed approximately 15 Cisco C819HG ISRs to remote locations. _all the routers deployed are of the 4G Verizon version and they work very well. _my issue is, when the wireless carrier service drops and comes back in 3G mode the router connects as advertised but, when the wireless service steps up to 4G(LTE) the router stays at the 3G technology and requires a cellular interface restart to connect at the 4G technology. _my question, is there a parameter i'm missing to configure the ISR to auto reconnect with 4G technology when available.??? _i have included my ISR config.</P> <P><BR />version 15.3<BR />service timestamps debug datetime msec<BR />service timestamps log datetime msec<BR />no service password-encryption<BR />!<BR />chat-script lte "" "AT!CALL" TIMEOUT 20 "OK"<BR />!<BR />controller Cellular 0<BR />!<BR />interface Cellular0<BR /> description $FW_OUTSIDE$<BR /> ip address negotiated<BR /> ip access-group 104 in<BR /> ip nat outside<BR /> ip virtual-reassembly in<BR /> encapsulation slip<BR /> dialer in-band<BR /> dialer idle-timeout 0<BR /> dialer string lte<BR /> dialer-group 1<BR /> async mode interactive<BR /> crypto map SDM_CMAP_1<BR />!<BR />interface FastEthernet0<BR /> no ip address<BR />!<BR />interface GigabitEthernet0<BR /> no ip address<BR /> shutdown<BR /> duplex auto<BR /> speed auto<BR />!<BR />interface Serial0<BR /> no ip address<BR /> shutdown<BR /> clock rate 2000000<BR />!<BR />interface Vlan1<BR /> description $FW_INSIDE$<BR /> ip address xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx <BR /> ip access-group 103 in<BR /> ip nat inside<BR /> ip virtual-reassembly in<BR />!<BR />ip forward-protocol nd<BR />!<BR />ip route 0.0.0.0 0.0.0.0 Cellular0<BR />!<BR />dialer-list 1 protocol ip permit<BR />!<BR />route-map SDM_RMAP_1 permit 1<BR /> match ip address 101<BR />!<BR />control-plane<BR />!<BR />mgcp behavior rsip-range tgcp-only<BR />mgcp behavior comedia-role none<BR />mgcp behavior comedia-check-media-src disable<BR />mgcp behavior comedia-sdp-force disable<BR />!<BR />mgcp profile default<BR />!<BR />line con 0<BR /> no modem enable<BR />line aux 0<BR />line 2<BR /> no activation-character<BR /> no exec<BR /> transport preferred none<BR /> transport input all<BR /> stopbits 1<BR />line 3<BR /> script dialer lte<BR /> modem InOut<BR /> no exec<BR /> transport input all<BR /> rxspeed 100000000<BR /> txspeed 50000000<BR />line vty 0 4<BR /> login local<BR /> transport input all<BR />!<BR />scheduler allocate 20000 1000<BR />ntp master 1<BR />ntp update-calendar<BR />ntp server xxx.xxx.xxx.xxx prefer source Cellular0<BR />!<BR />end</P> Mon, 05 Jul 2021 13:01:10 GMT https://community.cisco.com/t5/wireless/c819-cellular-connection-issue/m-p/2970373#M95962 swclark 2021-07-05T13:01:10Z