# Will not Synchronize

**URL:** <https://forums.ankiweb.net/t/will-not-synchronize/10568>\
**Category:** Help\
**Created:** [June 4, 2021, 1:41am UTC](https://forums.ankiweb.net/t/will-not-synchronize/10568 "2021-06-04T01:41:34Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![johnj102](https://avatars.discourse-cdn.com/v4/letter/j/ea5d25/32.png) [@johnj102](https://forums.ankiweb.net/u/johnj102)\
**Post date:** [June 4, 2021, 1:41am UTC](https://forums.ankiweb.net/t/will-not-synchronize/10568/1 "2021-06-04T01:41:34Z")

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2021-06-03T16:00:00Z  
Using Anki for 18 months now and no prob until recently. I had the latest Anki Desktop edition then after several synch failures reverted to an older version but still had the same result: " A network error occurred: Error details: error sending request for URL(): error trying to connect: Unexpected EOF during handshake". I don’t get this error on my mobile but the changes I’ve made on my Anki desktop are not reflected on my Anki mobile.

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**Author:** ![dae](https://sea2.discourse-cdn.com/flex002/user_avatar/forums.ankiweb.net/dae/32/65_2.png) [@dae](https://forums.ankiweb.net/u/dae)\
**Post date:** [June 5, 2021, 4:23am UTC](https://forums.ankiweb.net/t/will-not-synchronize/10568/2 "2021-06-05T04:23:39Z")

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If you use your phone as a hotspot and sync through that, or test on a different wifi network, does that help? If not, it’s possible antivirus/firewall/proxy or VPN software on your machine is to blame.

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**Author:** ![johnj102](https://avatars.discourse-cdn.com/v4/letter/j/ea5d25/32.png) [@johnj102](https://forums.ankiweb.net/u/johnj102)\
**Post date:** [June 6, 2021, 4:06am UTC](https://forums.ankiweb.net/t/will-not-synchronize/10568/3 "2021-06-06T04:06:14Z")

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Thanks for the response Damien, I’ll go through the possible causes.

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**Author:** ![system](https://us1.discourse-cdn.com/flex002/uploads/anki2/original/1X/8f1279ababc5879d54e4838989f606cfe55af8c7.jpeg) [@system](https://forums.ankiweb.net/u/system)\
**Post date:** [May 1, 2023, 5:02am UTC](https://forums.ankiweb.net/t/will-not-synchronize/10568/4 "2023-05-01T05:02:19Z")

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