One of the suggestions from a long time member is as follows:
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This is how URC recommends you set up your TRC1080's wifi:

1. set the remote to dhcp and reserve the ip in your router
2. create a 2.4GHz only wifi network for the remote and connect to that
3. use channel 1,6, or 11
4. set channelization to 20
5. use WPA2 Only/AES for encryption
6. don't put any spaces in your SSID

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I have configured as per above, but the lag in the commands from the TRC-1080 do occur sometimes and I have to remove the battery, wait for a few seconds and then reinstall the battery and then the remote starts working fine.

Does anyone have any idea how to troubleshoot this.