[44net] Problem with axip links

Hello Since 1 week I started to have problems with ampr-ripd settiing. The reception of response packets from 169.228.34.84 on port 520 udp are not coming. Before abt 1 week the reception went normally. The problem occures at all IPs of 44.63.16.116/28 subnet. Below examples: For OK0NMG-5: [root@ok0nmg ~]# ifconfig tunl0 tunl0: flags=4289<UP,RUNNING,NOARP,MULTICAST>  mtu 1480 inet 44.63.16.110  netmask 255.255.255.255 tunnel   txqueuelen 0  (IPIP Tunnel) RX packets 0  bytes 0 (0.0 B) RX errors 0  dropped 0  overruns 0  frame 0 TX packets 20599  bytes 5164325 (4.9 MiB) TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0 For OK2PEN-5 tunl0: flags=4289<UP,RUNNING,NOARP,MULTICAST>  mtu 1480 inet 44.63.16.112  netmask 255.255.255.255 tunnel   txqueuelen 0  (IPIP Tunnel) RX packets 0  bytes 0 (0.0 B) RX errors 0  dropped 0  overruns 0  frame 0 TX packets 892  bytes 223304 (218.0 KiB) TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0 For OK2KOJ-5 tunl0     Link encap:IPIP Tunnel HWaddr inet addr:44.63.16.111 Mask:255.255.255.255 UP RUNNING NOARP MULTICAST  MTU:1480 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:106074 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B)  TX bytes:27842124 (26.5 MiB) All setting in amprnet portal are correct and reset. 73 Dalibor OK2PEN (PY2ZEN)