I have CS1K 7.5 system, and my 3 PRI2 circuits are acting all foolish and taking continual CRC hits. This issue recently started, but for now anyway the PRI2 loop/DCH are UP on all 3 of the circuits. I'm getting continual DTA300, DTA311 errors even after DIS/ENL the CC, DCH, and LOOP a few times with no change. i even went as far as downing the MSDL card for each PRI2, then re-enable w/FDL. My guess is the carrier, but i wanted to see if there may be another ideas out there. I have allready checked LD73 DDB, LPTI, and SYTI programming and everything checks out accordingly. Let me know, thx