# Problem Connecting FTP Acc

**URL:** <https://forum.infinityfree.com/t/problem-connecting-ftp-acc/9606>\
**Category:** Hosting Support\
**Created:** [July 2, 2018, 8:25pm UTC](https://forum.infinityfree.com/t/problem-connecting-ftp-acc/9606 "2018-07-02T20:25:49Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![lvlessi](https://forum.infinityfree.com/letter_avatar/lvlessi/32/6_449c533f586939b6e5f246632a46421f.png) [@lvlessi](https://forum.infinityfree.com/u/lvlessi)\
**Post date:** [July 2, 2018, 8:25pm UTC](https://forum.infinityfree.com/t/problem-connecting-ftp-acc/9606/1 "2018-07-02T20:25:49Z")

</div>

Hello Community, I’m trying to connect my FTP account with FileZilla. I saw connecting info from overview window of FTP Detail. host port etc. The port given is 21 to use. i tried by this but i’m getting this error

Protocol error: Unknown protocol identifier (0x50 0x50 0x48). Most likely connected to the wrong port.  
Connection to server closed.

how can i solve this problem ? I tried leaving that port box empty(as it’s given as optional in FTP Details window) but it’s required to put port number in FileZilla.

---

<div class="post-metadata">

**Author:** ![UnknownLolz](https://forum.infinityfree.com/user_avatar/forum.infinityfree.com/unknownlolz/32/14581_2.png) [@UnknownLolz](https://forum.infinityfree.com/u/UnknownLolz)\
**Post date:** [July 2, 2018, 9:30pm UTC](https://forum.infinityfree.com/t/problem-connecting-ftp-acc/9606/2 "2018-07-02T21:30:16Z")

</div>

> @lvlessi said:  
> Hello Community, I’m trying to connect my FTP account with FileZilla. I saw connecting info from overview window of FTP Detail. host port etc. The port given is 21 to use. i tried by this but i’m getting this error
> 
> Protocol error: Unknown protocol identifier (0x50 0x50 0x48). Most likely connected to the wrong port.  
> Connection to server closed.
> 
> how can i solve this problem ? I tried leaving that port box empty(as it’s given as optional in FTP Details window) but it’s required to put port number in FileZilla.

I’m not sure but I found this answer on Google about your problem.

Answer: It indicates that you’re logging in using FileZilla Server instead of FileZilla Client. Download FileZilla Client and try again. You should be able to log in now.

---

<div class="post-metadata">

**Author:** ![lvlessi](https://forum.infinityfree.com/letter_avatar/lvlessi/32/6_449c533f586939b6e5f246632a46421f.png) [@lvlessi](https://forum.infinityfree.com/u/lvlessi)\
**Post date:** [July 3, 2018, 8:36pm UTC](https://forum.infinityfree.com/t/problem-connecting-ftp-acc/9606/3 "2018-07-03T20:36:26Z")

</div>

okay i try this and get back here

---

<div class="post-metadata">

**Author:** ![lvlessi](https://forum.infinityfree.com/letter_avatar/lvlessi/32/6_449c533f586939b6e5f246632a46421f.png) [@lvlessi](https://forum.infinityfree.com/u/lvlessi)\
**Post date:** [July 4, 2018, 10:14am UTC](https://forum.infinityfree.com/t/problem-connecting-ftp-acc/9606/4 "2018-07-04T10:14:04Z")

</div>

yes problem solved. connected successfully

---

<div class="post-metadata">

**Author:** ![UnknownLolz](https://forum.infinityfree.com/user_avatar/forum.infinityfree.com/unknownlolz/32/14581_2.png) [@UnknownLolz](https://forum.infinityfree.com/u/UnknownLolz)\
**Post date:** [July 4, 2018, 10:15am UTC](https://forum.infinityfree.com/t/problem-connecting-ftp-acc/9606/5 "2018-07-04T10:15:24Z")

</div>

> @lvlessi said:  
> yes problem solved. connected successfully

So the above information helped you?

---

<div class="post-metadata">

**Author:** ![system](https://infinityfree-forum-uploads.s3.dualstack.eu-central-1.amazonaws.com/original/3X/b/0/b024fd3fa88bae093c9576e55c2c94e33f890206.svg) [@system](https://forum.infinityfree.com/u/system)\
**Post date:** [January 17, 2019, 7:32pm UTC](https://forum.infinityfree.com/t/problem-connecting-ftp-acc/9606/6 "2019-01-17T19:32:31Z")

</div>

Closed on January 17, 2019, 7:32pm UTC