Since my upgrade today to 19.10 I am affected by the same bug, but with different hardware
$ lspci -nnk | grep Network -A2 00:14.3 Network controller [0280]: Intel Corporation Cannon Point-LP CNVi [Wireless-AC] [8086:9df0] (rev 30) Subsystem: Intel Corporation Cannon Point-LP CNVi [Wireless-AC] [8086:0034] Kernel driver in use: iwlwifi
Tried backport-iwlwifi-dkms and the old kernel, none of which helped, so I'm using the 11n_disable workaround as well for the time being.
Since my upgrade today to 19.10 I am affected by the same bug, but with different hardware
$ lspci -nnk | grep Network -A2
00:14.3 Network controller [0280]: Intel Corporation Cannon Point-LP CNVi [Wireless-AC] [8086:9df0] (rev 30)
Subsystem: Intel Corporation Cannon Point-LP CNVi [Wireless-AC] [8086:0034]
Kernel driver in use: iwlwifi
Tried backport- iwlwifi- dkms and the old kernel, none of which helped, so I'm using the 11n_disable workaround as well for the time being.