I am having an issue where my LF and LR rear speakers are playing intermittently. All other speakers are playing as normal. I have had the system setup and playing with no issues for several years. I have tried switching sources and surround modes and still have the issue. I have checked the speaker connections and have "reset" the receiver per the instructions in the owner’s manual and still have the problem. Sometimes all speakers play and sometimes the LF and LR do not.

Mike