# Ameba26(RTL8720DF) OTA Uploading Failed **URL:** \ **Category:** OTA\ **Created:** [November 13, 2023, 9:02am UTC](https://forum.amebaiot.com/t/ameba26-rtl8720df-ota-uploading-failed/2399 "2023-11-13T09:02:54Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![yithwe](https://avatars.discourse-cdn.com/v4/letter/y/9fc348/32.png) [@yithwe](https://forum.amebaiot.com/u/yithwe)\ **Post date:** [November 13, 2023, 9:02am UTC](https://forum.amebaiot.com/t/ameba26-rtl8720df-ota-uploading-failed/2399/1 "2023-11-13T09:02:54Z")
Hi I use Ameba26(RTL8720DF) board, use arduino OTA basic example, start mDNS and register service is OK, but appear the error message as below.How to solve for this problem? Tools–\>port–\>Network port (error mesage) “No monitor available for the port protocol network.Could not connect to XXX network port.” when upload (error message) main] Default input parameters 2 usage: C:\Users\USER\AppData\Local\Arduino15\packages\realtek\tools\ameba\_d\_tools\1.1.3\misc\OTA\_All.bin File: C:\Users\USER\AppData\Local\Arduino15\packages\realtek\tools\ameba\_d\_tools\1.1.3\misc\OTA\_All.bin opened succesfully in current folder (Size: 741408 Byte) Checksum: 74894598 Create socket: success (248) IP = 192.168.6.106 [User Input / Arduino Network Port] PORT = 8082 Failed uploading: uploading error: exit status 0xffffffff ---
**Author:** ![dakamaster](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/dakamaster/32/1744_2.png) [@dakamaster](https://forum.amebaiot.com/u/dakamaster)\ **Post date:** [November 14, 2023, 1:18am UTC](https://forum.amebaiot.com/t/ameba26-rtl8720df-ota-uploading-failed/2399/2 "2023-11-14T01:18:44Z")
Dear @yithwe, > [@yithwe](#): > > “No monitor available for the port protocol network.Could not connect to XXX network port.” May I know upon mDNS started, are you able to obtain the network port broadcast from Ameba board? ![image](https://us1.discourse-cdn.com/flex016/uploads/ameba/original/2X/b/b4ce8f7147eb3ae2e1dbea81f106cda74ee4700d.png) Thank you ---
**Author:** ![yithwe](https://avatars.discourse-cdn.com/v4/letter/y/9fc348/32.png) [@yithwe](https://forum.amebaiot.com/u/yithwe)\ **Post date:** [November 14, 2023, 1:42am UTC](https://forum.amebaiot.com/t/ameba26-rtl8720df-ota-uploading-failed/2399/3 "2023-11-14T01:42:17Z")
Hi dakamaster yes, I found the new network ip port from Tool–\>port–\>Ameba\_10AC20at 192.168.6.106 as below. but when I select this port, appear “No monitor available for the port protocol network.Could not connect to XXX network port.” ![image](https://us1.discourse-cdn.com/flex016/uploads/ameba/original/2X/4/48de7a8fd239040e4ae2cc478244f172210336d6.png) ---
**Author:** ![dakamaster](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.amebaiot.com/dakamaster/32/1744_2.png) [@dakamaster](https://forum.amebaiot.com/u/dakamaster)\ **Post date:** [November 14, 2023, 2:08am UTC](https://forum.amebaiot.com/t/ameba26-rtl8720df-ota-uploading-failed/2399/4 "2023-11-14T02:08:39Z")
> [@yithwe](#): > > “No monitor available for the port protocol network. Could not connect to XXX network port.” Since you are currently opening your Serial Monitor, there might be a conflict if you want to display your data from the network port to your serial monitor. Thus, could you please close the serial monitor tab and try to select your network port again. Thanks ---
**Author:** ![yithwe](https://avatars.discourse-cdn.com/v4/letter/y/9fc348/32.png) [@yithwe](https://forum.amebaiot.com/u/yithwe)\ **Post date:** [November 14, 2023, 2:36am UTC](https://forum.amebaiot.com/t/ameba26-rtl8720df-ota-uploading-failed/2399/5 "2023-11-14T02:36:46Z")
Hi dakamaster it’s OK for download, Thanks. ---
**Author:** ![yithwe](https://avatars.discourse-cdn.com/v4/letter/y/9fc348/32.png) [@yithwe](https://forum.amebaiot.com/u/yithwe)\ **Post date:** [November 14, 2023, 3:07am UTC](https://forum.amebaiot.com/t/ameba26-rtl8720df-ota-uploading-failed/2399/6 "2023-11-14T03:07:23Z")
Hi dakamaster Is this OTA flow must need to use Arduino IDE to download? may I use web site or cloud?