Our performance problem with Mockingbird Tower unfortunately wasn’t affected by replacing the radio driver on Tuesday.
We’ve since spent two very late nights (until 4 AM) attempting to locate the true cause of this problem. We’ve checked for queueing and routing problems, limitations on link capacity, RF issues (such as improper equipment orientation, local interference, and — our perennial bugaboo — a subscriber with degrading signal strength whose retry requests overwhelm the tower and destroy performance for all other tower users). We’ve temporarily backed out recent configuration changes to see if any of them triggered the issue. Despite our efforts, the problem continues to defy explanation.
On Wednesday, we contracted with the largest MikroTik consulting firm in the US to look at this problem, as well as the challenge of delivering increased bandwidth to all our subscribers on all towers. We’ve been assured that their engineers will begin work on these tasks on Monday.
We’re sorry to have no interim fix available for this problem. As other potential causes suggest themselves to us, we will continue to test them, and either repair them or eliminate them from consideration. We want you to know that if you are a Mockingbird Tower subscriber, we are not ignoring you — we are aware of your speed issues and we are working on them.
Thank you for using Grand Avenue Broadband.