err_http2_protocol_error

Using IIS 10 on Windows 2022 standard when I enable http/2 I get “err_http2_protocol_error” when I load up my WordPress sites.

Any advice that could make the WordPress sites load or any settings that I need to change with IIS.

The network request withing developers options of chrome

Request URL: 
Referrer Policy: no-referrer-when-downgrade
:authority: 
:method: GET
:path: /
:scheme: https
accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,/;q=0.8,application/signed-exchange;v=b3;q=0.9
accept-encoding: gzip, deflate, br
accept-language: en-GB,en;q=0.9
cache-control: max-age=0
cookie: PHPSESSID=9670ffp87heugl97cfveaauu10; cookielawinfo-checkbox-necessary=yes; _clck=sz2qvi|1|f8q|0; _gid=GA1.3.1810813701.1675162418; cookielawinfo-checkbox-functional=yes; cookielawinfo-checkbox-performance=yes; cookielawinfo-checkbox-analytics=yes; cookielawinfo-checkbox-advertisement=yes; cookielawinfo-checkbox-others=yes; CookieLawInfoConsent=eyJuZWNlc3NhcnkiOnRydWUsImZ1bmN0aW9uYWwiOnRydWUsInBlcmZvcm1hbmNlIjp0cnVlLCJhbmFseXRpY3MiOnRydWUsImFkdmVydGlzZW1lbnQiOnRydWUsIm90aGVycyI6dHJ1ZX0=; viewed_cookie_policy=yes; _gat_gtag_UA_217840203_8=1; _ga=GA1.1.238289266.1675162418; _ga_J1K1L2FLQY=GS1.1.1675162417.1.1.1675167960.0.0.0
if-modified-since: Tue, 31 Jan 2023 12:25:56 GMT
if-none-match: "29fbcc37ec54b3a3857d308ec4d36d36"
referer:
sec-ch-ua: "Not_A Brand";v="99", "Google Chrome";v="109", "Chromium";v="109"
sec-ch-ua-mobile: ?1
sec-ch-ua-platform: "Android"
sec-fetch-dest: document
sec-fetch-mode: navigate
sec-fetch-site: same-origin
sec-fetch-user: ?1
upgrade-insecure-requests: 1
user-agent: Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Mobile Safari/537.36

• This topic was modified 1 year, 10 months ago by alexakhter.