Hello, my router A64 is droping access for internet for 15-30 seconds every 20-40 min, while connection still present and all devices in dhcp list, it started 2 weeks ago and is accompanied by this massage in system log:

1 INFO 0days, 01:08:55, [wan]advanced ddns -wanChanged

2 INFO 0days, 01:08:55, [dhcpc]Recv NAK from server 10.10.5.2 with ip 169.254.115.97

3 INFO 0days, 01:08:56, [dhcpc]Send DISCOVER with unicast flag 0

4 INFO 0days, 01:08:56, [dhcpc]Recv OFFER from server 10.10.5.2 with ip 188.***.**.**

5 INFO 0days, 01:08:56, [dhcpc]Send REQUEST to server 10.10.5.2 with request ip 188.***.**.**

6 INFO 0days, 01:08:57, [dhcpc]eth0 set ip 188.***.**.** mask 255.255.255.0 gateway 188.***.**.*

7 INFO 0days, 01:08:57, [wan]advanced ddns -wanChanged

8 INFO 0days, 01:08:57, [wan]systool sntpc -sntpRequest

9 INFO 0days, 01:08:57, [dnsproxy]Register Dns Detect

10 INFO 0days, 01:08:57, [dnsproxy]Register primary = 0x1ecbd45b, secondary = 0x75532c2

11 ERROR 0days, 01:08:57, [inetd]INETD: select error, abort.

12 WARNING 0days, 01:08:57, [cwmp]cwmp is not start

I do have another 100mb router working just fine when swapped.

My internet is Gigabit via PON technology and Dynamic Ip.

Will be glad to recieve any advice, Thank you in advance