Hi within last few days I had few stations connecting to my server. I see a lot of mode switch and long empty communications. Below is a copy from my log. Tell me please what is going on. Few things I think I understand : I: ParseMode: ARQ new modem set to PSK250 I: apply: RSID: PSK250R @ 991 Hz 23:52 UTC Nov-19-2011: > Connect: N2TIF:1024 KB2PNM:24 776593d Is that wrong request from Client that is not set up for US modes?? Request for mode 7 which is PSK500 - Am I correct? Final connect status: Asymmetric link:1 , tx mode: PSK250R , rx mode: MFSK32 Why receive is on MFSK32? Is that base on S/N ratio? 23:52 UTC Nov-19-2011: Added N2TIF to link list N2TIF->KB2PNM 23:52 UTC Nov-19-2011: Send>APRS-IS:KB2PNM>PSKAPR,TCPIP*::PSKAPR :GATING N2TIF I: ParseMode: ARQ new modem set to PSK250R MAXIDLE=13.4175416327812 I: ParseMode: ARQ new modem set to MFSK32 4 acks left... 23:52 UTC Nov-19-2011: Added N2TIF to link list N2TIF->KB2PNM 23:52 UTC Nov-19-2011: Send>APRS-IS:KB2PNM>PSKAPR,TCPIP*::PSKAPR :GATING N2TIF I: ParseMode: ARQ new modem set to PSK250R MAXIDLE=21.6428571428571 I: ParseMode: ARQ new modem set to MFSK32 3 acks left... 23:53 UTC Nov-19-2011: Added N2TIF to link list N2TIF->KB2PNM 23:53 UTC Nov-19-2011: Send>APRS-IS:KB2PNM>PSKAPR,TCPIP*::PSKAPR :GATING N2TIF I: ParseMode: ARQ new modem set to PSK500R MAXIDLE=21.6428571428571 I: ParseMode: ARQ new modem set to MFSK32 2 acks left... 23:53 UTC Nov-19-2011: Added N2TIF to link list N2TIF->KB2PNM 23:53 UTC Nov-19-2011: Send>APRS-IS:KB2PNM>PSKAPR,TCPIP*::PSKAPR :GATING N2TIF I: ParseMode: ARQ new modem set to PSK250R MAXIDLE=21.6428571428571 I: ParseMode: ARQ new modem set to MFSK32 1 acks left... 23:54 UTC Nov-19-2011: Added N2TIF to link list N2TIF->KB2PNM 23:54 UTC Nov-19-2011: Send>APRS-IS:KB2PNM>PSKAPR,TCPIP*::PSKAPR :GATING N2TIF I: ParseMode: ARQ new modem set to PSK125 MAXIDLE=21.6428571428571 I: ParseMode: ARQ new modem set to MFSK32 0 acks left... Aborting connect ~ABORTSEND 23:55 UTC Nov-19-2011: Call N2TIF o.k. 23:55 UTC Nov-19-2011: Connected to N2TIF Stationname =N2TIF Mail count =-1 23:55 UTC Nov-19-2011: Listening to the radio At the same time on Fldigi display I see unreadable text transmitted from N2TIF. I think we have a situation that Server - Client try to talk to each other in different mode. Is that the case?? Best regards de KB2PNM