Author Topic: Avast blocks internet use when on my college campus using their network  (Read 700 times)

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Offline cowboytx936

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Like the title says Avast (premium subscription) blocks internet use while I am on campus using the school's secure network. I can turn the Real Site/DNS protection off and it will work for a short period of time. Then the connection gets slow followed by stopping altogether again. If use the school's "guest" network everything works fine. This does not happen at home nor does my phone have issues with the school's secure network as it does not have Avast installed. After working with the school's IT department, we have narrowed it down to Avast. Does anyone know what can be done?

Windows 10 laptop
Avast 21.1.2449 (build 21.1.5968.649)

Offline Asyn

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Update to the latest version (21.2): https://forum.avast.com/index.php?topic=255221.0
Win 8.1 [x64] - Avast PremSec 22.1.6864.IBC [UI.688] - EEK - Firefox ESR 91.5 [NS/uBO/PB] - TB 91.5.0
Avast-Tools: Secure Browser 97.1 - Cleanup 21.4 - SecureLine 5.15 - Driver Updater 21.4 - CCleaner 5.88
Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523.0

Offline cowboytx936

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Did that. Same issue.

Offline Asyn

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1. Enable debug logging (Menu > Settings > General > Troubleshooting > Enable debug logging) and reproduce the issue.
2. Follow instructions: https://support.avast.com/article/33/ and post the File-ID or name of the Support-File here afterwards.
Win 8.1 [x64] - Avast PremSec 22.1.6864.IBC [UI.688] - EEK - Firefox ESR 91.5 [NS/uBO/PB] - TB 91.5.0
Avast-Tools: Secure Browser 97.1 - Cleanup 21.4 - SecureLine 5.15 - Driver Updater 21.4 - CCleaner 5.88
Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523.0