Windows issues following Core Agent 2.7.6 and Intercept X 2.0.17 update. See KBA 135504 for more information.
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I'm having a problem with web servers behind WAF that are not busy seem to go to sleep after a while.
What I mean is, the initial request to one site will take around 14 seconds! if the site has been quiet for a period of time. It will take around 85ms to respond once it has "woken up".
I have multiple web servers, both Windows IIS and Apache on Linux and they all behaving this way. I removed them from CDN's to eliminate that. The only common thread is the Sophos UTM WAF.
I didn't know I had a problem for a few years now because a primary site is very busy and never has an issue. But this month I built new sites that have low traffic and the results are terrible. This is particularly bad because Google Bot is reporting errors crawling a new site due to timeouts.
And it's on a dedicated Dell server with 0% average utilization. I can't find where the hangup is, I've gone through every setting in UTM.
Interesting! Please let us know what Support has to say about this.
Cheers - Bob