SRW224G4 and 2960 Link Aggregation LACP problem

Hello
WE have Linksys SRW224G4 and Cisco 2960 switches.
We made link aggregation onboth two ports between them, all is working except that when I make continuous ping between them it fails every 90 seconds one ping. I saw the problem is , when I connect to SRW224G4 by telnet and go CTRL+Z and lcli , and login, I got console. Every 90 seconds I got this messages:
01-Jan-2000 22:14:49 %TRUNK-W-PORTREMOVED: Port g2 removed from ch1
01-Jan-2000 22:14:53 %TRUNK-W-PORTREMOVED: Port g1 removed from ch1
01-Jan-2000 22:14:53 %LINK-W-Down: ch1
01-Jan-2000 22:14:53 %TRUNK-I-PORTADDED: Port g1 added to ch1
01-Jan-2000 22:14:53 %LINK-I-Up: ch1
01-Jan-2000 22:14:56 %TRUNK-I-PORTADDED: Port g2 added to ch1
So after this one ping fails, and it goes good next 90 seconds, and then again same group of same messages and one ping fails.
I tried all options to change on Linksys and nothing, still i got this link down and up and one ping failed.
Did someone had same problem, can you help me somehow.
THank you
Hrvoje Pastar

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</pre>

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