Hi. I have an point to point connection. LHG 5 ac being my AP and on the receiving end I have a LHG 5. Since three days ago the tx ccq suddenly was unstable. They are at a 3km distance apart with signal of tx/rx -58/-54dBm. Signals have not changed what changed was the tx ccq while the rx ccq still remain at 92%. Before the unstable tx ccq at the access point i could have a through put of about 30- 40 mbps. I also have a clear line of sight between the two devices. How can I fix this issue. Thank you in advance.

Since the ccq tx changed, do the throughput changed too?