Proxies -> 403 Forbidden

Hi,

Suddenly all my shared semi proxies are failing in GSA SER, Scrapebox and RankerX. 

I keep getting 403 Forbidden error when testing proxies.

Any thoughts how to fix this or what could cause this? (Windows / firewall setting perhaps?)

403 means you are not authorized to use the proxies... whoever your provider is revoked access or your IP authorization has changed.

My IP is still the same and I haven't changed anything on my end. Time to contact the support once again then...

403 is a forbidden code, probably from the site you're testing on, not necessarily an issue with your provider. Check your proxies with firefox/foxyproxy.