# Can't download episodes
**URL:** https://forum.antennapod.org/t/cant-download-episodes/899
**Category:** Support
**Created:** [April 22, 2021, 3:03pm UTC](https://forum.antennapod.org/t/cant-download-episodes/899 "2021-04-22T15:03:55Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@Marx](https://forum.antennapod.org/u/Marx)
#### Post date: [April 22, 2021, 3:03pm UTC](https://forum.antennapod.org/t/cant-download-episodes/899/1 "2021-04-22T15:03:56Z")
**App version** : 2.1.3 (from Google Play)
**Android version** : 11
**Device model** : Samsung Galaxy S20 Ultra 5G
**Expected behaviour** :
Downloading should work
**Current behaviour** :
Episodes doesn’t download
**First occurred** : (e.g. about x days/weeks ago)
today
**Steps to reproduce** :
1. Add one of feeds from [https://podsync.k.marx.katowice.pl/](https://podsync.k.marx.katowice.pl/)
2. Synchronize (XML gets downloaded ok)
3. Try download episode. It fails with message like:
```auto
failed to connect to podsync.k.marx.katowice.pl/64:ff9b::59e5:7fa1 (port 80) from /2a00:f41:2875:370a:0:4d:e7a4:6101 (port 46734) after 10000ms
Adres pliku:
http://podsync.k.marx.katowice.pl/EP/X_XnmGuKFLo.mp3
```
**Environment** : it looks like network problem, because of IPV6 data in log. But it’s weird because XML gets downloaded everytime. Downloading mp3 directly (for example in Chrome) also works ok.
---
### Author:  [@keunes](https://forum.antennapod.org/u/keunes)
#### Post date: [April 22, 2021, 3:09pm UTC](https://forum.antennapod.org/t/cant-download-episodes/899/2 "2021-04-22T15:09:24Z")
Do you have any VPN, Firewall or another potential blocker active on your phone?
---
### Author:  [@Marx](https://forum.antennapod.org/u/Marx)
#### Post date: [April 22, 2021, 3:14pm UTC](https://forum.antennapod.org/t/cant-download-episodes/899/3 "2021-04-22T15:14:26Z")
No, I don’t have any blockers I’m aware of, but it’s corporate phone, so something could be installed without my attention.
I see that
> **[NAT64](https://en.wikipedia.org/wiki/NAT64)**
>
> NAT64 is an IPv6 transition mechanism that facilitates communication between IPv6 and IPv4 hosts by using a form of network address translation (NAT). The NAT64 gateway is a translator between IPv4 and IPv6 protocols, for which function it needs at least one IPv4 address and an IPv6 network segment comprising a 32-bit address space. The "well-known prefix" reserved for this service is 64:ff9b::/96.
> An IPv6 client embeds the IPv4 address it wishes to communicate with using the host part of the I...
**64:ff9b** is a IPv4 address inside IPv6. But why AntennaPod tries to use IPv6? Is it because of DNS?
---
### Author:  [@keunes](https://forum.antennapod.org/u/keunes)
#### Post date: [April 22, 2021, 3:26pm UTC](https://forum.antennapod.org/t/cant-download-episodes/899/4 "2021-04-22T15:26:13Z")
I just added the feed and also can’t download the latest episode. I have this error:
> failed to connect to podsync.k.marx.katowice.pl/89.229.127.161 (port 80) from /10.164.226.144 (port 47960) after 10000ms
>
> File URL:
> [http://podsync.k.marx.katowice.pl/SOK/56X9kBLt62g.mp3](http://podsync.k.marx.katowice.pl/SOK/56X9kBLt62g.mp3)
Makes me think the issue is with the server. I assume it’s your server? (If so; I’d assume you have a firewall on that end; maybe it’s something in your webserver configuration. I don’t know what kind of request AntennaPod sends, I guess just a normal http request.)
---
### Author:  [@Marx](https://forum.antennapod.org/u/Marx)
#### Post date: [April 22, 2021, 3:33pm UTC](https://forum.antennapod.org/t/cant-download-episodes/899/5 "2021-04-22T15:33:22Z")
You’ve helped me trace the issue - it’s https, not http. Thank you!
---
### Author:  [@system](https://forum.antennapod.org/u/system)
#### Post date: [February 25, 2022, 8:11am UTC](https://forum.antennapod.org/t/cant-download-episodes/899/6 "2022-02-25T08:11:23Z")