A driver update is very unlikely to happen, which is discussed in the following, but, just to be sure, have you been following the WRT3200ACM & WRT32X thread where they've fixed a major issue on it in the 21.02 daily snapshots and the master for this family of devices? That was what I was talking about me needing to test. You should definitely test a 21.02 daily snapshot and/or the master to see if it solves your problems. The 21.02 daily snapshots are in a hidden directory, but someone can probably send you a link to it.